com.amazonaws.AmazonWebServiceRequest
com.amazonaws.services.dynamodbv2.model.ScanRequest
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java.lang.Object
public class ScanRequest
Container for the parameters to the Scan operation.
The Scan operation returns one or more items and item attributes by accessing every item in the table. To have Amazon DynamoDB return fewer items, you can provide a ScanFilter .
If the total number of scanned items exceeds the maximum data set size limit of 1 MB, the scan stops and results are returned to the user with a LastEvaluatedKey to continue the scan in a subsequent operation. The results also include the number of items exceeding the limit. A scan can result in no table data meeting the filter criteria.
The result set is eventually consistent.
AmazonDynamoDB.scan(ScanRequest),
Serialized Form| Constructor Summary | |
|---|---|
ScanRequest()
Default constructor for a new ScanRequest object. |
|
ScanRequest(String tableName)
Constructs a new ScanRequest object. |
|
| Method Summary | |
|---|---|
boolean |
equals(Object obj)
|
List<String> |
getAttributesToGet()
The names of one or more attributes to retrieve. |
Map<String,AttributeValue> |
getExclusiveStartKey()
The primary key of the item from which to continue an earlier operation. |
Integer |
getLimit()
The maximum number of items to evaluate (not necessarily the number of matching items). |
String |
getReturnConsumedCapacity()
Determines whether to include consumed capacity information in the output. |
Map<String,Condition> |
getScanFilter()
Evaluates the scan results and returns only the desired values. |
String |
getSelect()
The attributes to be returned in the result. |
String |
getTableName()
The name of the table containing the requested items. |
int |
hashCode()
|
void |
setAttributesToGet(Collection<String> attributesToGet)
The names of one or more attributes to retrieve. |
void |
setExclusiveStartKey(Map<String,AttributeValue> exclusiveStartKey)
The primary key of the item from which to continue an earlier operation. |
void |
setLimit(Integer limit)
The maximum number of items to evaluate (not necessarily the number of matching items). |
void |
setReturnConsumedCapacity(ReturnConsumedCapacity returnConsumedCapacity)
Determines whether to include consumed capacity information in the output. |
void |
setReturnConsumedCapacity(String returnConsumedCapacity)
Determines whether to include consumed capacity information in the output. |
void |
setScanFilter(Map<String,Condition> scanFilter)
Evaluates the scan results and returns only the desired values. |
void |
setSelect(Select select)
The attributes to be returned in the result. |
void |
setSelect(String select)
The attributes to be returned in the result. |
void |
setTableName(String tableName)
The name of the table containing the requested items. |
String |
toString()
Returns a string representation of this object; useful for testing and debugging. |
ScanRequest |
withAttributesToGet(Collection<String> attributesToGet)
The names of one or more attributes to retrieve. |
ScanRequest |
withAttributesToGet(String... attributesToGet)
The names of one or more attributes to retrieve. |
ScanRequest |
withExclusiveStartKey(Map<String,AttributeValue> exclusiveStartKey)
The primary key of the item from which to continue an earlier operation. |
ScanRequest |
withLimit(Integer limit)
The maximum number of items to evaluate (not necessarily the number of matching items). |
ScanRequest |
withReturnConsumedCapacity(ReturnConsumedCapacity returnConsumedCapacity)
Determines whether to include consumed capacity information in the output. |
ScanRequest |
withReturnConsumedCapacity(String returnConsumedCapacity)
Determines whether to include consumed capacity information in the output. |
ScanRequest |
withScanFilter(Map<String,Condition> scanFilter)
Evaluates the scan results and returns only the desired values. |
ScanRequest |
withSelect(Select select)
The attributes to be returned in the result. |
ScanRequest |
withSelect(String select)
The attributes to be returned in the result. |
ScanRequest |
withTableName(String tableName)
The name of the table containing the requested items. |
| Methods inherited from class com.amazonaws.AmazonWebServiceRequest |
|---|
copyPrivateRequestParameters, getRequestClientOptions, getRequestCredentials, setRequestCredentials |
| Methods inherited from class java.lang.Object |
|---|
getClass, notify, notifyAll, wait, wait, wait |
| Constructor Detail |
|---|
public ScanRequest()
public ScanRequest(String tableName)
tableName - The name of the table containing the requested items.| Method Detail |
|---|
public String getTableName()
Constraints:
Length: 3 - 255
Pattern: [a-zA-Z0-9_.-]+
public void setTableName(String tableName)
Constraints:
Length: 3 - 255
Pattern: [a-zA-Z0-9_.-]+
tableName - The name of the table containing the requested items.public ScanRequest withTableName(String tableName)
Returns a reference to this object so that method calls can be chained together.
Constraints:
Length: 3 - 255
Pattern: [a-zA-Z0-9_.-]+
tableName - The name of the table containing the requested items.
public List<String> getAttributesToGet()
Constraints:
Length: 1 -
public void setAttributesToGet(Collection<String> attributesToGet)
Constraints:
Length: 1 -
attributesToGet - The names of one or more attributes to retrieve. If no attribute names
are specified, then all attributes will be returned. If any of the
requested attributes are not found, they will not appear in the
result.public ScanRequest withAttributesToGet(String... attributesToGet)
Returns a reference to this object so that method calls can be chained together.
Constraints:
Length: 1 -
attributesToGet - The names of one or more attributes to retrieve. If no attribute names
are specified, then all attributes will be returned. If any of the
requested attributes are not found, they will not appear in the
result.
public ScanRequest withAttributesToGet(Collection<String> attributesToGet)
Returns a reference to this object so that method calls can be chained together.
Constraints:
Length: 1 -
attributesToGet - The names of one or more attributes to retrieve. If no attribute names
are specified, then all attributes will be returned. If any of the
requested attributes are not found, they will not appear in the
result.
public Integer getLimit()
Constraints:
Range: 1 -
public void setLimit(Integer limit)
Constraints:
Range: 1 -
limit - The maximum number of items to evaluate (not necessarily the number of
matching items). If Amazon DynamoDB processes the number of items up
to the limit while processing the results, it stops the operation and
returns the matching values up to that point, and a
LastEvaluatedKey to apply in a subsequent operation, so that
you can pick up where you left off. Also, if the processed data set
size exceeds 1 MB before Amazon DynamoDB reaches this limit, it stops
the operation and returns the matching values up to the limit, and a
LastEvaluatedKey to apply in a subsequent operation to continue
the operation. For more information see Query
and Scan of the Amazon DynamoDB Developer Guide.public ScanRequest withLimit(Integer limit)
Returns a reference to this object so that method calls can be chained together.
Constraints:
Range: 1 -
limit - The maximum number of items to evaluate (not necessarily the number of
matching items). If Amazon DynamoDB processes the number of items up
to the limit while processing the results, it stops the operation and
returns the matching values up to that point, and a
LastEvaluatedKey to apply in a subsequent operation, so that
you can pick up where you left off. Also, if the processed data set
size exceeds 1 MB before Amazon DynamoDB reaches this limit, it stops
the operation and returns the matching values up to the limit, and a
LastEvaluatedKey to apply in a subsequent operation to continue
the operation. For more information see Query
and Scan of the Amazon DynamoDB Developer Guide.
public String getSelect()
ALL_ATTRIBUTES: Returns all of
the item attributes. For a table, this is the default. For an index,
this mode causes Amazon DynamoDB to fetch the full item from the table
for each matching item in the index. If the index is configured to
project all item attributes, the matching items will not be fetched
from the table. Fetching items from the table incurs additional
throughput cost and latency.
ALL_PROJECTED_ATTRIBUTES: Retrieves all attributes
which have been projected into the index. If the index is configured
to project all attributes, this is equivalent to specifying
ALL_ATTRIBUTES.
COUNT: Returns the
number of matching items, rather than the matching items themselves.
SPECIFIC_ATTRIBUTES : Returns only the
attributes listed in AttributesToGet. This is equivalent to
specifying AttributesToGet without specifying any value for
Select.
If you are querying an index and only request attributes that are projected into that index, the operation will consult the index and bypass the table. If any of the requested attributes are not projected into the index, Amazon DynamoDB will need to fetch each matching item from the table. This extra fetching incurs additional throughput cost and latency.
When neither
Select nor AttributesToGet are specified, Amazon
DynamoDB defaults to ALL_ATTRIBUTES when accessing a
table, and ALL_PROJECTED_ATTRIBUTES when accessing an
index. You cannot use both Select and AttributesToGet
together in a single request, unless the value for
Select is SPECIFIC_ATTRIBUTES. (This usage is
equivalent to specifying AttributesToGet without any value for
Select.)
Constraints:
Allowed Values: ALL_ATTRIBUTES, ALL_PROJECTED_ATTRIBUTES, SPECIFIC_ATTRIBUTES, COUNT
ALL_ATTRIBUTES: Returns all of
the item attributes. For a table, this is the default. For an index,
this mode causes Amazon DynamoDB to fetch the full item from the table
for each matching item in the index. If the index is configured to
project all item attributes, the matching items will not be fetched
from the table. Fetching items from the table incurs additional
throughput cost and latency.
ALL_PROJECTED_ATTRIBUTES: Retrieves all attributes
which have been projected into the index. If the index is configured
to project all attributes, this is equivalent to specifying
ALL_ATTRIBUTES.
COUNT: Returns the
number of matching items, rather than the matching items themselves.
SPECIFIC_ATTRIBUTES : Returns only the
attributes listed in AttributesToGet. This is equivalent to
specifying AttributesToGet without specifying any value for
Select.
If you are querying an index and only request attributes that are projected into that index, the operation will consult the index and bypass the table. If any of the requested attributes are not projected into the index, Amazon DynamoDB will need to fetch each matching item from the table. This extra fetching incurs additional throughput cost and latency.
When neither
Select nor AttributesToGet are specified, Amazon
DynamoDB defaults to ALL_ATTRIBUTES when accessing a
table, and ALL_PROJECTED_ATTRIBUTES when accessing an
index. You cannot use both Select and AttributesToGet
together in a single request, unless the value for
Select is SPECIFIC_ATTRIBUTES. (This usage is
equivalent to specifying AttributesToGet without any value for
Select.)
Selectpublic void setSelect(String select)
ALL_ATTRIBUTES: Returns all of
the item attributes. For a table, this is the default. For an index,
this mode causes Amazon DynamoDB to fetch the full item from the table
for each matching item in the index. If the index is configured to
project all item attributes, the matching items will not be fetched
from the table. Fetching items from the table incurs additional
throughput cost and latency.
ALL_PROJECTED_ATTRIBUTES: Retrieves all attributes
which have been projected into the index. If the index is configured
to project all attributes, this is equivalent to specifying
ALL_ATTRIBUTES.
COUNT: Returns the
number of matching items, rather than the matching items themselves.
SPECIFIC_ATTRIBUTES : Returns only the
attributes listed in AttributesToGet. This is equivalent to
specifying AttributesToGet without specifying any value for
Select.
If you are querying an index and only request attributes that are projected into that index, the operation will consult the index and bypass the table. If any of the requested attributes are not projected into the index, Amazon DynamoDB will need to fetch each matching item from the table. This extra fetching incurs additional throughput cost and latency.
When neither
Select nor AttributesToGet are specified, Amazon
DynamoDB defaults to ALL_ATTRIBUTES when accessing a
table, and ALL_PROJECTED_ATTRIBUTES when accessing an
index. You cannot use both Select and AttributesToGet
together in a single request, unless the value for
Select is SPECIFIC_ATTRIBUTES. (This usage is
equivalent to specifying AttributesToGet without any value for
Select.)
Constraints:
Allowed Values: ALL_ATTRIBUTES, ALL_PROJECTED_ATTRIBUTES, SPECIFIC_ATTRIBUTES, COUNT
select - The attributes to be returned in the result. You can retrieve all item
attributes, specific item attributes, the count of matching items, or
in the case of an index, some or all of the attributes projected into
the index. ALL_ATTRIBUTES: Returns all of
the item attributes. For a table, this is the default. For an index,
this mode causes Amazon DynamoDB to fetch the full item from the table
for each matching item in the index. If the index is configured to
project all item attributes, the matching items will not be fetched
from the table. Fetching items from the table incurs additional
throughput cost and latency.
ALL_PROJECTED_ATTRIBUTES: Retrieves all attributes
which have been projected into the index. If the index is configured
to project all attributes, this is equivalent to specifying
ALL_ATTRIBUTES.
COUNT: Returns the
number of matching items, rather than the matching items themselves.
SPECIFIC_ATTRIBUTES : Returns only the
attributes listed in AttributesToGet. This is equivalent to
specifying AttributesToGet without specifying any value for
Select.
If you are querying an index and only request attributes that are projected into that index, the operation will consult the index and bypass the table. If any of the requested attributes are not projected into the index, Amazon DynamoDB will need to fetch each matching item from the table. This extra fetching incurs additional throughput cost and latency.
When neither
Select nor AttributesToGet are specified, Amazon
DynamoDB defaults to ALL_ATTRIBUTES when accessing a
table, and ALL_PROJECTED_ATTRIBUTES when accessing an
index. You cannot use both Select and AttributesToGet
together in a single request, unless the value for
Select is SPECIFIC_ATTRIBUTES. (This usage is
equivalent to specifying AttributesToGet without any value for
Select.)
Selectpublic ScanRequest withSelect(String select)
ALL_ATTRIBUTES: Returns all of
the item attributes. For a table, this is the default. For an index,
this mode causes Amazon DynamoDB to fetch the full item from the table
for each matching item in the index. If the index is configured to
project all item attributes, the matching items will not be fetched
from the table. Fetching items from the table incurs additional
throughput cost and latency.
ALL_PROJECTED_ATTRIBUTES: Retrieves all attributes
which have been projected into the index. If the index is configured
to project all attributes, this is equivalent to specifying
ALL_ATTRIBUTES.
COUNT: Returns the
number of matching items, rather than the matching items themselves.
SPECIFIC_ATTRIBUTES : Returns only the
attributes listed in AttributesToGet. This is equivalent to
specifying AttributesToGet without specifying any value for
Select.
If you are querying an index and only request attributes that are projected into that index, the operation will consult the index and bypass the table. If any of the requested attributes are not projected into the index, Amazon DynamoDB will need to fetch each matching item from the table. This extra fetching incurs additional throughput cost and latency.
When neither
Select nor AttributesToGet are specified, Amazon
DynamoDB defaults to ALL_ATTRIBUTES when accessing a
table, and ALL_PROJECTED_ATTRIBUTES when accessing an
index. You cannot use both Select and AttributesToGet
together in a single request, unless the value for
Select is SPECIFIC_ATTRIBUTES. (This usage is
equivalent to specifying AttributesToGet without any value for
Select.)
Returns a reference to this object so that method calls can be chained together.
Constraints:
Allowed Values: ALL_ATTRIBUTES, ALL_PROJECTED_ATTRIBUTES, SPECIFIC_ATTRIBUTES, COUNT
select - The attributes to be returned in the result. You can retrieve all item
attributes, specific item attributes, the count of matching items, or
in the case of an index, some or all of the attributes projected into
the index. ALL_ATTRIBUTES: Returns all of
the item attributes. For a table, this is the default. For an index,
this mode causes Amazon DynamoDB to fetch the full item from the table
for each matching item in the index. If the index is configured to
project all item attributes, the matching items will not be fetched
from the table. Fetching items from the table incurs additional
throughput cost and latency.
ALL_PROJECTED_ATTRIBUTES: Retrieves all attributes
which have been projected into the index. If the index is configured
to project all attributes, this is equivalent to specifying
ALL_ATTRIBUTES.
COUNT: Returns the
number of matching items, rather than the matching items themselves.
SPECIFIC_ATTRIBUTES : Returns only the
attributes listed in AttributesToGet. This is equivalent to
specifying AttributesToGet without specifying any value for
Select.
If you are querying an index and only request attributes that are projected into that index, the operation will consult the index and bypass the table. If any of the requested attributes are not projected into the index, Amazon DynamoDB will need to fetch each matching item from the table. This extra fetching incurs additional throughput cost and latency.
When neither
Select nor AttributesToGet are specified, Amazon
DynamoDB defaults to ALL_ATTRIBUTES when accessing a
table, and ALL_PROJECTED_ATTRIBUTES when accessing an
index. You cannot use both Select and AttributesToGet
together in a single request, unless the value for
Select is SPECIFIC_ATTRIBUTES. (This usage is
equivalent to specifying AttributesToGet without any value for
Select.)
Selectpublic void setSelect(Select select)
ALL_ATTRIBUTES: Returns all of
the item attributes. For a table, this is the default. For an index,
this mode causes Amazon DynamoDB to fetch the full item from the table
for each matching item in the index. If the index is configured to
project all item attributes, the matching items will not be fetched
from the table. Fetching items from the table incurs additional
throughput cost and latency.
ALL_PROJECTED_ATTRIBUTES: Retrieves all attributes
which have been projected into the index. If the index is configured
to project all attributes, this is equivalent to specifying
ALL_ATTRIBUTES.
COUNT: Returns the
number of matching items, rather than the matching items themselves.
SPECIFIC_ATTRIBUTES : Returns only the
attributes listed in AttributesToGet. This is equivalent to
specifying AttributesToGet without specifying any value for
Select.
If you are querying an index and only request attributes that are projected into that index, the operation will consult the index and bypass the table. If any of the requested attributes are not projected into the index, Amazon DynamoDB will need to fetch each matching item from the table. This extra fetching incurs additional throughput cost and latency.
When neither
Select nor AttributesToGet are specified, Amazon
DynamoDB defaults to ALL_ATTRIBUTES when accessing a
table, and ALL_PROJECTED_ATTRIBUTES when accessing an
index. You cannot use both Select and AttributesToGet
together in a single request, unless the value for
Select is SPECIFIC_ATTRIBUTES. (This usage is
equivalent to specifying AttributesToGet without any value for
Select.)
Constraints:
Allowed Values: ALL_ATTRIBUTES, ALL_PROJECTED_ATTRIBUTES, SPECIFIC_ATTRIBUTES, COUNT
select - The attributes to be returned in the result. You can retrieve all item
attributes, specific item attributes, the count of matching items, or
in the case of an index, some or all of the attributes projected into
the index. ALL_ATTRIBUTES: Returns all of
the item attributes. For a table, this is the default. For an index,
this mode causes Amazon DynamoDB to fetch the full item from the table
for each matching item in the index. If the index is configured to
project all item attributes, the matching items will not be fetched
from the table. Fetching items from the table incurs additional
throughput cost and latency.
ALL_PROJECTED_ATTRIBUTES: Retrieves all attributes
which have been projected into the index. If the index is configured
to project all attributes, this is equivalent to specifying
ALL_ATTRIBUTES.
COUNT: Returns the
number of matching items, rather than the matching items themselves.
SPECIFIC_ATTRIBUTES : Returns only the
attributes listed in AttributesToGet. This is equivalent to
specifying AttributesToGet without specifying any value for
Select.
If you are querying an index and only request attributes that are projected into that index, the operation will consult the index and bypass the table. If any of the requested attributes are not projected into the index, Amazon DynamoDB will need to fetch each matching item from the table. This extra fetching incurs additional throughput cost and latency.
When neither
Select nor AttributesToGet are specified, Amazon
DynamoDB defaults to ALL_ATTRIBUTES when accessing a
table, and ALL_PROJECTED_ATTRIBUTES when accessing an
index. You cannot use both Select and AttributesToGet
together in a single request, unless the value for
Select is SPECIFIC_ATTRIBUTES. (This usage is
equivalent to specifying AttributesToGet without any value for
Select.)
Selectpublic ScanRequest withSelect(Select select)
ALL_ATTRIBUTES: Returns all of
the item attributes. For a table, this is the default. For an index,
this mode causes Amazon DynamoDB to fetch the full item from the table
for each matching item in the index. If the index is configured to
project all item attributes, the matching items will not be fetched
from the table. Fetching items from the table incurs additional
throughput cost and latency.
ALL_PROJECTED_ATTRIBUTES: Retrieves all attributes
which have been projected into the index. If the index is configured
to project all attributes, this is equivalent to specifying
ALL_ATTRIBUTES.
COUNT: Returns the
number of matching items, rather than the matching items themselves.
SPECIFIC_ATTRIBUTES : Returns only the
attributes listed in AttributesToGet. This is equivalent to
specifying AttributesToGet without specifying any value for
Select.
If you are querying an index and only request attributes that are projected into that index, the operation will consult the index and bypass the table. If any of the requested attributes are not projected into the index, Amazon DynamoDB will need to fetch each matching item from the table. This extra fetching incurs additional throughput cost and latency.
When neither
Select nor AttributesToGet are specified, Amazon
DynamoDB defaults to ALL_ATTRIBUTES when accessing a
table, and ALL_PROJECTED_ATTRIBUTES when accessing an
index. You cannot use both Select and AttributesToGet
together in a single request, unless the value for
Select is SPECIFIC_ATTRIBUTES. (This usage is
equivalent to specifying AttributesToGet without any value for
Select.)
Returns a reference to this object so that method calls can be chained together.
Constraints:
Allowed Values: ALL_ATTRIBUTES, ALL_PROJECTED_ATTRIBUTES, SPECIFIC_ATTRIBUTES, COUNT
select - The attributes to be returned in the result. You can retrieve all item
attributes, specific item attributes, the count of matching items, or
in the case of an index, some or all of the attributes projected into
the index. ALL_ATTRIBUTES: Returns all of
the item attributes. For a table, this is the default. For an index,
this mode causes Amazon DynamoDB to fetch the full item from the table
for each matching item in the index. If the index is configured to
project all item attributes, the matching items will not be fetched
from the table. Fetching items from the table incurs additional
throughput cost and latency.
ALL_PROJECTED_ATTRIBUTES: Retrieves all attributes
which have been projected into the index. If the index is configured
to project all attributes, this is equivalent to specifying
ALL_ATTRIBUTES.
COUNT: Returns the
number of matching items, rather than the matching items themselves.
SPECIFIC_ATTRIBUTES : Returns only the
attributes listed in AttributesToGet. This is equivalent to
specifying AttributesToGet without specifying any value for
Select.
If you are querying an index and only request attributes that are projected into that index, the operation will consult the index and bypass the table. If any of the requested attributes are not projected into the index, Amazon DynamoDB will need to fetch each matching item from the table. This extra fetching incurs additional throughput cost and latency.
When neither
Select nor AttributesToGet are specified, Amazon
DynamoDB defaults to ALL_ATTRIBUTES when accessing a
table, and ALL_PROJECTED_ATTRIBUTES when accessing an
index. You cannot use both Select and AttributesToGet
together in a single request, unless the value for
Select is SPECIFIC_ATTRIBUTES. (This usage is
equivalent to specifying AttributesToGet without any value for
Select.)
Selectpublic Map<String,Condition> getScanFilter()
Each ScanConditions element consists of an attribute name to compare, along with the following:
AttributeValueList-One or more values to evaluate
against the supplied attribute. This list contains exactly one value,
except for a For type Number,
value comparisons are numeric. String value comparisons for greater
than, equals, or less than are based on ASCII character code values.
For example, For Binary, Amazon DynamoDB treats each byte of the binary data as
unsigned when it compares binary values, for example when evaluating
query expressions. BETWEEN or IN comparison, in
which case the list contains two values. a is greater than A, and
aa is greater than B. For a list of code
values, see http://en.wikipedia.org/wiki/ASCII#ASCII_printable_characters.
ComparisonOperator-A comparator for evaluating attributes. For example, equals, greater than, less than, etc.
Valid comparison operators for Scan:
EQ | NE | LE | LT | GE | GT | NOT_NULL | NULL | CONTAINS |
NOT_CONTAINS | BEGINS_WITH | IN | BETWEEN
For information on specifying data types in JSON, see JSON Data Format of the Amazon DynamoDB Developer Guide.
The following are descriptions of each comparison operator.
EQ : Equal.
AttributeValueList can contain
only one AttributeValue of type String, Number, or Binary (not
a set). If an item contains an AttributeValue of a different
type than the one specified in the request, the value does not match.
For example, {"S":"6"} does not equal
{"N":"6"}. Also, {"N":"6"} does not equal
{"NS":["6", "2", "1"]}.
NE
: Not equal.
AttributeValueList can contain only one
AttributeValue of type String, Number, or Binary (not a set).
If an item contains an AttributeValue of a different type than
the one specified in the request, the value does not match. For
example, {"S":"6"} does not equal {"N":"6"}.
Also, {"N":"6"} does not equal {"NS":["6", "2",
"1"]}.
LE : Less than or equal.
AttributeValueList can contain only one
AttributeValue of type String, Number, or Binary (not a set).
If an item contains an AttributeValue of a different type than
the one specified in the request, the value does not match. For
example, {"S":"6"} does not equal {"N":"6"}.
Also, {"N":"6"} does not compare to {"NS":["6",
"2", "1"]}.
LT : Less than.
AttributeValueList can contain only one
AttributeValue of type String, Number, or Binary (not a set).
If an item contains an AttributeValue of a different type than
the one specified in the request, the value does not match. For
example, {"S":"6"} does not equal {"N":"6"}.
Also, {"N":"6"} does not compare to {"NS":["6",
"2", "1"]}.
GE : Greater than or
equal.
AttributeValueList can contain only one
AttributeValue of type String, Number, or Binary (not a set).
If an item contains an AttributeValue of a different type than
the one specified in the request, the value does not match. For
example, {"S":"6"} does not equal {"N":"6"}.
Also, {"N":"6"} does not compare to {"NS":["6",
"2", "1"]}.
GT : Greater than.
AttributeValueList can contain only one
AttributeValue of type String, Number, or Binary (not a set).
If an item contains an AttributeValue of a different type than
the one specified in the request, the value does not match. For
example, {"S":"6"} does not equal {"N":"6"}.
Also, {"N":"6"} does not compare to {"NS":["6",
"2", "1"]}.
NOT_NULL : The
attribute exists.
NULL : The attribute does
not exist.
CONTAINS : checks for a
subsequence, or value in a set.
AttributeValueList can contain only one AttributeValue of type String, Number, or Binary (not a set). If the target attribute of the comparison is a String, then the operation checks for a substring match. If the target attribute of the comparison is Binary, then the operation looks for a subsequence of the target that matches the input. If the target attribute of the comparison is a set ("SS", "NS", or "BS"), then the operation checks for a member of the set (not as a substring).
NOT_CONTAINS : checks for absence of a
subsequence, or absence of a value in a set.
AttributeValueList can contain only one AttributeValue of type String, Number, or Binary (not a set). If the target attribute of the comparison is a String, then the operation checks for the absence of a substring match. If the target attribute of the comparison is Binary, then the operation checks for the absence of a subsequence of the target that matches the input. If the target attribute of the comparison is a set ("SS", "NS", or "BS"), then the operation checks for the absence of a member of the set (not as a substring).
BEGINS_WITH : checks for a
prefix.
AttributeValueList can contain only one AttributeValue of type String or Binary (not a Number or a set). The target attribute of the comparison must be a String or Binary (not a Number or a set).
IN :
checks for exact matches.
AttributeValueList can contain more than one AttributeValue of type String, Number, or Binary (not a set). The target attribute of the comparison must be of the same type and exact value to match. A String never matches a String set.
BETWEEN : Greater than or equal to the
first value, and less than or equal to the second value.
AttributeValueList must contain two AttributeValue
elements of the same type, either String, Number, or Binary (not a
set). A target attribute matches if the target value is greater than,
or equal to, the first element and less than, or equal to, the second
element. If an item contains an AttributeValue of a different
type than the one specified in the request, the value does not match.
For example, {"S":"6"} does not compare to
{"N":"6"}. Also, {"N":"6"} does not compare
to {"NS":["6", "2", "1"]}
Each ScanConditions element consists of an attribute name to compare, along with the following:
AttributeValueList-One or more values to evaluate
against the supplied attribute. This list contains exactly one value,
except for a For type Number,
value comparisons are numeric. String value comparisons for greater
than, equals, or less than are based on ASCII character code values.
For example, For Binary, Amazon DynamoDB treats each byte of the binary data as
unsigned when it compares binary values, for example when evaluating
query expressions. BETWEEN or IN comparison, in
which case the list contains two values. a is greater than A, and
aa is greater than B. For a list of code
values, see http://en.wikipedia.org/wiki/ASCII#ASCII_printable_characters.
ComparisonOperator-A comparator for evaluating attributes. For example, equals, greater than, less than, etc.
Valid comparison operators for Scan:
EQ | NE | LE | LT | GE | GT | NOT_NULL | NULL | CONTAINS |
NOT_CONTAINS | BEGINS_WITH | IN | BETWEEN
For information on specifying data types in JSON, see JSON Data Format of the Amazon DynamoDB Developer Guide.
The following are descriptions of each comparison operator.
EQ : Equal.
AttributeValueList can contain
only one AttributeValue of type String, Number, or Binary (not
a set). If an item contains an AttributeValue of a different
type than the one specified in the request, the value does not match.
For example, {"S":"6"} does not equal
{"N":"6"}. Also, {"N":"6"} does not equal
{"NS":["6", "2", "1"]}.
NE
: Not equal.
AttributeValueList can contain only one
AttributeValue of type String, Number, or Binary (not a set).
If an item contains an AttributeValue of a different type than
the one specified in the request, the value does not match. For
example, {"S":"6"} does not equal {"N":"6"}.
Also, {"N":"6"} does not equal {"NS":["6", "2",
"1"]}.
LE : Less than or equal.
AttributeValueList can contain only one
AttributeValue of type String, Number, or Binary (not a set).
If an item contains an AttributeValue of a different type than
the one specified in the request, the value does not match. For
example, {"S":"6"} does not equal {"N":"6"}.
Also, {"N":"6"} does not compare to {"NS":["6",
"2", "1"]}.
LT : Less than.
AttributeValueList can contain only one
AttributeValue of type String, Number, or Binary (not a set).
If an item contains an AttributeValue of a different type than
the one specified in the request, the value does not match. For
example, {"S":"6"} does not equal {"N":"6"}.
Also, {"N":"6"} does not compare to {"NS":["6",
"2", "1"]}.
GE : Greater than or
equal.
AttributeValueList can contain only one
AttributeValue of type String, Number, or Binary (not a set).
If an item contains an AttributeValue of a different type than
the one specified in the request, the value does not match. For
example, {"S":"6"} does not equal {"N":"6"}.
Also, {"N":"6"} does not compare to {"NS":["6",
"2", "1"]}.
GT : Greater than.
AttributeValueList can contain only one
AttributeValue of type String, Number, or Binary (not a set).
If an item contains an AttributeValue of a different type than
the one specified in the request, the value does not match. For
example, {"S":"6"} does not equal {"N":"6"}.
Also, {"N":"6"} does not compare to {"NS":["6",
"2", "1"]}.
NOT_NULL : The
attribute exists.
NULL : The attribute does
not exist.
CONTAINS : checks for a
subsequence, or value in a set.
AttributeValueList can contain only one AttributeValue of type String, Number, or Binary (not a set). If the target attribute of the comparison is a String, then the operation checks for a substring match. If the target attribute of the comparison is Binary, then the operation looks for a subsequence of the target that matches the input. If the target attribute of the comparison is a set ("SS", "NS", or "BS"), then the operation checks for a member of the set (not as a substring).
NOT_CONTAINS : checks for absence of a
subsequence, or absence of a value in a set.
AttributeValueList can contain only one AttributeValue of type String, Number, or Binary (not a set). If the target attribute of the comparison is a String, then the operation checks for the absence of a substring match. If the target attribute of the comparison is Binary, then the operation checks for the absence of a subsequence of the target that matches the input. If the target attribute of the comparison is a set ("SS", "NS", or "BS"), then the operation checks for the absence of a member of the set (not as a substring).
BEGINS_WITH : checks for a
prefix.
AttributeValueList can contain only one AttributeValue of type String or Binary (not a Number or a set). The target attribute of the comparison must be a String or Binary (not a Number or a set).
IN :
checks for exact matches.
AttributeValueList can contain more than one AttributeValue of type String, Number, or Binary (not a set). The target attribute of the comparison must be of the same type and exact value to match. A String never matches a String set.
BETWEEN : Greater than or equal to the
first value, and less than or equal to the second value.
AttributeValueList must contain two AttributeValue
elements of the same type, either String, Number, or Binary (not a
set). A target attribute matches if the target value is greater than,
or equal to, the first element and less than, or equal to, the second
element. If an item contains an AttributeValue of a different
type than the one specified in the request, the value does not match.
For example, {"S":"6"} does not compare to
{"N":"6"}. Also, {"N":"6"} does not compare
to {"NS":["6", "2", "1"]}
public void setScanFilter(Map<String,Condition> scanFilter)
Each ScanConditions element consists of an attribute name to compare, along with the following:
AttributeValueList-One or more values to evaluate
against the supplied attribute. This list contains exactly one value,
except for a For type Number,
value comparisons are numeric. String value comparisons for greater
than, equals, or less than are based on ASCII character code values.
For example, For Binary, Amazon DynamoDB treats each byte of the binary data as
unsigned when it compares binary values, for example when evaluating
query expressions. BETWEEN or IN comparison, in
which case the list contains two values. a is greater than A, and
aa is greater than B. For a list of code
values, see http://en.wikipedia.org/wiki/ASCII#ASCII_printable_characters.
ComparisonOperator-A comparator for evaluating attributes. For example, equals, greater than, less than, etc.
Valid comparison operators for Scan:
EQ | NE | LE | LT | GE | GT | NOT_NULL | NULL | CONTAINS |
NOT_CONTAINS | BEGINS_WITH | IN | BETWEEN
For information on specifying data types in JSON, see JSON Data Format of the Amazon DynamoDB Developer Guide.
The following are descriptions of each comparison operator.
EQ : Equal.
AttributeValueList can contain
only one AttributeValue of type String, Number, or Binary (not
a set). If an item contains an AttributeValue of a different
type than the one specified in the request, the value does not match.
For example, {"S":"6"} does not equal
{"N":"6"}. Also, {"N":"6"} does not equal
{"NS":["6", "2", "1"]}.
NE
: Not equal.
AttributeValueList can contain only one
AttributeValue of type String, Number, or Binary (not a set).
If an item contains an AttributeValue of a different type than
the one specified in the request, the value does not match. For
example, {"S":"6"} does not equal {"N":"6"}.
Also, {"N":"6"} does not equal {"NS":["6", "2",
"1"]}.
LE : Less than or equal.
AttributeValueList can contain only one
AttributeValue of type String, Number, or Binary (not a set).
If an item contains an AttributeValue of a different type than
the one specified in the request, the value does not match. For
example, {"S":"6"} does not equal {"N":"6"}.
Also, {"N":"6"} does not compare to {"NS":["6",
"2", "1"]}.
LT : Less than.
AttributeValueList can contain only one
AttributeValue of type String, Number, or Binary (not a set).
If an item contains an AttributeValue of a different type than
the one specified in the request, the value does not match. For
example, {"S":"6"} does not equal {"N":"6"}.
Also, {"N":"6"} does not compare to {"NS":["6",
"2", "1"]}.
GE : Greater than or
equal.
AttributeValueList can contain only one
AttributeValue of type String, Number, or Binary (not a set).
If an item contains an AttributeValue of a different type than
the one specified in the request, the value does not match. For
example, {"S":"6"} does not equal {"N":"6"}.
Also, {"N":"6"} does not compare to {"NS":["6",
"2", "1"]}.
GT : Greater than.
AttributeValueList can contain only one
AttributeValue of type String, Number, or Binary (not a set).
If an item contains an AttributeValue of a different type than
the one specified in the request, the value does not match. For
example, {"S":"6"} does not equal {"N":"6"}.
Also, {"N":"6"} does not compare to {"NS":["6",
"2", "1"]}.
NOT_NULL : The
attribute exists.
NULL : The attribute does
not exist.
CONTAINS : checks for a
subsequence, or value in a set.
AttributeValueList can contain only one AttributeValue of type String, Number, or Binary (not a set). If the target attribute of the comparison is a String, then the operation checks for a substring match. If the target attribute of the comparison is Binary, then the operation looks for a subsequence of the target that matches the input. If the target attribute of the comparison is a set ("SS", "NS", or "BS"), then the operation checks for a member of the set (not as a substring).
NOT_CONTAINS : checks for absence of a
subsequence, or absence of a value in a set.
AttributeValueList can contain only one AttributeValue of type String, Number, or Binary (not a set). If the target attribute of the comparison is a String, then the operation checks for the absence of a substring match. If the target attribute of the comparison is Binary, then the operation checks for the absence of a subsequence of the target that matches the input. If the target attribute of the comparison is a set ("SS", "NS", or "BS"), then the operation checks for the absence of a member of the set (not as a substring).
BEGINS_WITH : checks for a
prefix.
AttributeValueList can contain only one AttributeValue of type String or Binary (not a Number or a set). The target attribute of the comparison must be a String or Binary (not a Number or a set).
IN :
checks for exact matches.
AttributeValueList can contain more than one AttributeValue of type String, Number, or Binary (not a set). The target attribute of the comparison must be of the same type and exact value to match. A String never matches a String set.
BETWEEN : Greater than or equal to the
first value, and less than or equal to the second value.
AttributeValueList must contain two AttributeValue
elements of the same type, either String, Number, or Binary (not a
set). A target attribute matches if the target value is greater than,
or equal to, the first element and less than, or equal to, the second
element. If an item contains an AttributeValue of a different
type than the one specified in the request, the value does not match.
For example, {"S":"6"} does not compare to
{"N":"6"}. Also, {"N":"6"} does not compare
to {"NS":["6", "2", "1"]}
scanFilter - Evaluates the scan results and returns only the desired values.
Multiple conditions are treated as "AND" operations: all conditions
must be met to be included in the results. Each ScanConditions element consists of an attribute name to compare, along with the following:
AttributeValueList-One or more values to evaluate
against the supplied attribute. This list contains exactly one value,
except for a For type Number,
value comparisons are numeric. String value comparisons for greater
than, equals, or less than are based on ASCII character code values.
For example, For Binary, Amazon DynamoDB treats each byte of the binary data as
unsigned when it compares binary values, for example when evaluating
query expressions. BETWEEN or IN comparison, in
which case the list contains two values. a is greater than A, and
aa is greater than B. For a list of code
values, see http://en.wikipedia.org/wiki/ASCII#ASCII_printable_characters.
ComparisonOperator-A comparator for evaluating attributes. For example, equals, greater than, less than, etc.
Valid comparison operators for Scan:
EQ | NE | LE | LT | GE | GT | NOT_NULL | NULL | CONTAINS |
NOT_CONTAINS | BEGINS_WITH | IN | BETWEEN
For information on specifying data types in JSON, see JSON Data Format of the Amazon DynamoDB Developer Guide.
The following are descriptions of each comparison operator.
EQ : Equal.
AttributeValueList can contain
only one AttributeValue of type String, Number, or Binary (not
a set). If an item contains an AttributeValue of a different
type than the one specified in the request, the value does not match.
For example, {"S":"6"} does not equal
{"N":"6"}. Also, {"N":"6"} does not equal
{"NS":["6", "2", "1"]}.
NE
: Not equal.
AttributeValueList can contain only one
AttributeValue of type String, Number, or Binary (not a set).
If an item contains an AttributeValue of a different type than
the one specified in the request, the value does not match. For
example, {"S":"6"} does not equal {"N":"6"}.
Also, {"N":"6"} does not equal {"NS":["6", "2",
"1"]}.
LE : Less than or equal.
AttributeValueList can contain only one
AttributeValue of type String, Number, or Binary (not a set).
If an item contains an AttributeValue of a different type than
the one specified in the request, the value does not match. For
example, {"S":"6"} does not equal {"N":"6"}.
Also, {"N":"6"} does not compare to {"NS":["6",
"2", "1"]}.
LT : Less than.
AttributeValueList can contain only one
AttributeValue of type String, Number, or Binary (not a set).
If an item contains an AttributeValue of a different type than
the one specified in the request, the value does not match. For
example, {"S":"6"} does not equal {"N":"6"}.
Also, {"N":"6"} does not compare to {"NS":["6",
"2", "1"]}.
GE : Greater than or
equal.
AttributeValueList can contain only one
AttributeValue of type String, Number, or Binary (not a set).
If an item contains an AttributeValue of a different type than
the one specified in the request, the value does not match. For
example, {"S":"6"} does not equal {"N":"6"}.
Also, {"N":"6"} does not compare to {"NS":["6",
"2", "1"]}.
GT : Greater than.
AttributeValueList can contain only one
AttributeValue of type String, Number, or Binary (not a set).
If an item contains an AttributeValue of a different type than
the one specified in the request, the value does not match. For
example, {"S":"6"} does not equal {"N":"6"}.
Also, {"N":"6"} does not compare to {"NS":["6",
"2", "1"]}.
NOT_NULL : The
attribute exists.
NULL : The attribute does
not exist.
CONTAINS : checks for a
subsequence, or value in a set.
AttributeValueList can contain only one AttributeValue of type String, Number, or Binary (not a set). If the target attribute of the comparison is a String, then the operation checks for a substring match. If the target attribute of the comparison is Binary, then the operation looks for a subsequence of the target that matches the input. If the target attribute of the comparison is a set ("SS", "NS", or "BS"), then the operation checks for a member of the set (not as a substring).
NOT_CONTAINS : checks for absence of a
subsequence, or absence of a value in a set.
AttributeValueList can contain only one AttributeValue of type String, Number, or Binary (not a set). If the target attribute of the comparison is a String, then the operation checks for the absence of a substring match. If the target attribute of the comparison is Binary, then the operation checks for the absence of a subsequence of the target that matches the input. If the target attribute of the comparison is a set ("SS", "NS", or "BS"), then the operation checks for the absence of a member of the set (not as a substring).
BEGINS_WITH : checks for a
prefix.
AttributeValueList can contain only one AttributeValue of type String or Binary (not a Number or a set). The target attribute of the comparison must be a String or Binary (not a Number or a set).
IN :
checks for exact matches.
AttributeValueList can contain more than one AttributeValue of type String, Number, or Binary (not a set). The target attribute of the comparison must be of the same type and exact value to match. A String never matches a String set.
BETWEEN : Greater than or equal to the
first value, and less than or equal to the second value.
AttributeValueList must contain two AttributeValue
elements of the same type, either String, Number, or Binary (not a
set). A target attribute matches if the target value is greater than,
or equal to, the first element and less than, or equal to, the second
element. If an item contains an AttributeValue of a different
type than the one specified in the request, the value does not match.
For example, {"S":"6"} does not compare to
{"N":"6"}. Also, {"N":"6"} does not compare
to {"NS":["6", "2", "1"]}
public ScanRequest withScanFilter(Map<String,Condition> scanFilter)
Each ScanConditions element consists of an attribute name to compare, along with the following:
AttributeValueList-One or more values to evaluate
against the supplied attribute. This list contains exactly one value,
except for a For type Number,
value comparisons are numeric. String value comparisons for greater
than, equals, or less than are based on ASCII character code values.
For example, For Binary, Amazon DynamoDB treats each byte of the binary data as
unsigned when it compares binary values, for example when evaluating
query expressions. BETWEEN or IN comparison, in
which case the list contains two values. a is greater than A, and
aa is greater than B. For a list of code
values, see http://en.wikipedia.org/wiki/ASCII#ASCII_printable_characters.
ComparisonOperator-A comparator for evaluating attributes. For example, equals, greater than, less than, etc.
Valid comparison operators for Scan:
EQ | NE | LE | LT | GE | GT | NOT_NULL | NULL | CONTAINS |
NOT_CONTAINS | BEGINS_WITH | IN | BETWEEN
For information on specifying data types in JSON, see JSON Data Format of the Amazon DynamoDB Developer Guide.
The following are descriptions of each comparison operator.
EQ : Equal.
AttributeValueList can contain
only one AttributeValue of type String, Number, or Binary (not
a set). If an item contains an AttributeValue of a different
type than the one specified in the request, the value does not match.
For example, {"S":"6"} does not equal
{"N":"6"}. Also, {"N":"6"} does not equal
{"NS":["6", "2", "1"]}.
NE
: Not equal.
AttributeValueList can contain only one
AttributeValue of type String, Number, or Binary (not a set).
If an item contains an AttributeValue of a different type than
the one specified in the request, the value does not match. For
example, {"S":"6"} does not equal {"N":"6"}.
Also, {"N":"6"} does not equal {"NS":["6", "2",
"1"]}.
LE : Less than or equal.
AttributeValueList can contain only one
AttributeValue of type String, Number, or Binary (not a set).
If an item contains an AttributeValue of a different type than
the one specified in the request, the value does not match. For
example, {"S":"6"} does not equal {"N":"6"}.
Also, {"N":"6"} does not compare to {"NS":["6",
"2", "1"]}.
LT : Less than.
AttributeValueList can contain only one
AttributeValue of type String, Number, or Binary (not a set).
If an item contains an AttributeValue of a different type than
the one specified in the request, the value does not match. For
example, {"S":"6"} does not equal {"N":"6"}.
Also, {"N":"6"} does not compare to {"NS":["6",
"2", "1"]}.
GE : Greater than or
equal.
AttributeValueList can contain only one
AttributeValue of type String, Number, or Binary (not a set).
If an item contains an AttributeValue of a different type than
the one specified in the request, the value does not match. For
example, {"S":"6"} does not equal {"N":"6"}.
Also, {"N":"6"} does not compare to {"NS":["6",
"2", "1"]}.
GT : Greater than.
AttributeValueList can contain only one
AttributeValue of type String, Number, or Binary (not a set).
If an item contains an AttributeValue of a different type than
the one specified in the request, the value does not match. For
example, {"S":"6"} does not equal {"N":"6"}.
Also, {"N":"6"} does not compare to {"NS":["6",
"2", "1"]}.
NOT_NULL : The
attribute exists.
NULL : The attribute does
not exist.
CONTAINS : checks for a
subsequence, or value in a set.
AttributeValueList can contain only one AttributeValue of type String, Number, or Binary (not a set). If the target attribute of the comparison is a String, then the operation checks for a substring match. If the target attribute of the comparison is Binary, then the operation looks for a subsequence of the target that matches the input. If the target attribute of the comparison is a set ("SS", "NS", or "BS"), then the operation checks for a member of the set (not as a substring).
NOT_CONTAINS : checks for absence of a
subsequence, or absence of a value in a set.
AttributeValueList can contain only one AttributeValue of type String, Number, or Binary (not a set). If the target attribute of the comparison is a String, then the operation checks for the absence of a substring match. If the target attribute of the comparison is Binary, then the operation checks for the absence of a subsequence of the target that matches the input. If the target attribute of the comparison is a set ("SS", "NS", or "BS"), then the operation checks for the absence of a member of the set (not as a substring).
BEGINS_WITH : checks for a
prefix.
AttributeValueList can contain only one AttributeValue of type String or Binary (not a Number or a set). The target attribute of the comparison must be a String or Binary (not a Number or a set).
IN :
checks for exact matches.
AttributeValueList can contain more than one AttributeValue of type String, Number, or Binary (not a set). The target attribute of the comparison must be of the same type and exact value to match. A String never matches a String set.
BETWEEN : Greater than or equal to the
first value, and less than or equal to the second value.
AttributeValueList must contain two AttributeValue
elements of the same type, either String, Number, or Binary (not a
set). A target attribute matches if the target value is greater than,
or equal to, the first element and less than, or equal to, the second
element. If an item contains an AttributeValue of a different
type than the one specified in the request, the value does not match.
For example, {"S":"6"} does not compare to
{"N":"6"}. Also, {"N":"6"} does not compare
to {"NS":["6", "2", "1"]}
Returns a reference to this object so that method calls can be chained together.
scanFilter - Evaluates the scan results and returns only the desired values.
Multiple conditions are treated as "AND" operations: all conditions
must be met to be included in the results. Each ScanConditions element consists of an attribute name to compare, along with the following:
AttributeValueList-One or more values to evaluate
against the supplied attribute. This list contains exactly one value,
except for a For type Number,
value comparisons are numeric. String value comparisons for greater
than, equals, or less than are based on ASCII character code values.
For example, For Binary, Amazon DynamoDB treats each byte of the binary data as
unsigned when it compares binary values, for example when evaluating
query expressions. BETWEEN or IN comparison, in
which case the list contains two values. a is greater than A, and
aa is greater than B. For a list of code
values, see http://en.wikipedia.org/wiki/ASCII#ASCII_printable_characters.
ComparisonOperator-A comparator for evaluating attributes. For example, equals, greater than, less than, etc.
Valid comparison operators for Scan:
EQ | NE | LE | LT | GE | GT | NOT_NULL | NULL | CONTAINS |
NOT_CONTAINS | BEGINS_WITH | IN | BETWEEN
For information on specifying data types in JSON, see JSON Data Format of the Amazon DynamoDB Developer Guide.
The following are descriptions of each comparison operator.
EQ : Equal.
AttributeValueList can contain
only one AttributeValue of type String, Number, or Binary (not
a set). If an item contains an AttributeValue of a different
type than the one specified in the request, the value does not match.
For example, {"S":"6"} does not equal
{"N":"6"}. Also, {"N":"6"} does not equal
{"NS":["6", "2", "1"]}.
NE
: Not equal.
AttributeValueList can contain only one
AttributeValue of type String, Number, or Binary (not a set).
If an item contains an AttributeValue of a different type than
the one specified in the request, the value does not match. For
example, {"S":"6"} does not equal {"N":"6"}.
Also, {"N":"6"} does not equal {"NS":["6", "2",
"1"]}.
LE : Less than or equal.
AttributeValueList can contain only one
AttributeValue of type String, Number, or Binary (not a set).
If an item contains an AttributeValue of a different type than
the one specified in the request, the value does not match. For
example, {"S":"6"} does not equal {"N":"6"}.
Also, {"N":"6"} does not compare to {"NS":["6",
"2", "1"]}.
LT : Less than.
AttributeValueList can contain only one
AttributeValue of type String, Number, or Binary (not a set).
If an item contains an AttributeValue of a different type than
the one specified in the request, the value does not match. For
example, {"S":"6"} does not equal {"N":"6"}.
Also, {"N":"6"} does not compare to {"NS":["6",
"2", "1"]}.
GE : Greater than or
equal.
AttributeValueList can contain only one
AttributeValue of type String, Number, or Binary (not a set).
If an item contains an AttributeValue of a different type than
the one specified in the request, the value does not match. For
example, {"S":"6"} does not equal {"N":"6"}.
Also, {"N":"6"} does not compare to {"NS":["6",
"2", "1"]}.
GT : Greater than.
AttributeValueList can contain only one
AttributeValue of type String, Number, or Binary (not a set).
If an item contains an AttributeValue of a different type than
the one specified in the request, the value does not match. For
example, {"S":"6"} does not equal {"N":"6"}.
Also, {"N":"6"} does not compare to {"NS":["6",
"2", "1"]}.
NOT_NULL : The
attribute exists.
NULL : The attribute does
not exist.
CONTAINS : checks for a
subsequence, or value in a set.
AttributeValueList can contain only one AttributeValue of type String, Number, or Binary (not a set). If the target attribute of the comparison is a String, then the operation checks for a substring match. If the target attribute of the comparison is Binary, then the operation looks for a subsequence of the target that matches the input. If the target attribute of the comparison is a set ("SS", "NS", or "BS"), then the operation checks for a member of the set (not as a substring).
NOT_CONTAINS : checks for absence of a
subsequence, or absence of a value in a set.
AttributeValueList can contain only one AttributeValue of type String, Number, or Binary (not a set). If the target attribute of the comparison is a String, then the operation checks for the absence of a substring match. If the target attribute of the comparison is Binary, then the operation checks for the absence of a subsequence of the target that matches the input. If the target attribute of the comparison is a set ("SS", "NS", or "BS"), then the operation checks for the absence of a member of the set (not as a substring).
BEGINS_WITH : checks for a
prefix.
AttributeValueList can contain only one AttributeValue of type String or Binary (not a Number or a set). The target attribute of the comparison must be a String or Binary (not a Number or a set).
IN :
checks for exact matches.
AttributeValueList can contain more than one AttributeValue of type String, Number, or Binary (not a set). The target attribute of the comparison must be of the same type and exact value to match. A String never matches a String set.
BETWEEN : Greater than or equal to the
first value, and less than or equal to the second value.
AttributeValueList must contain two AttributeValue
elements of the same type, either String, Number, or Binary (not a
set). A target attribute matches if the target value is greater than,
or equal to, the first element and less than, or equal to, the second
element. If an item contains an AttributeValue of a different
type than the one specified in the request, the value does not match.
For example, {"S":"6"} does not compare to
{"N":"6"}. Also, {"N":"6"} does not compare
to {"NS":["6", "2", "1"]}
public Map<String,AttributeValue> getExclusiveStartKey()
The data type for ExclusiveStartKey must be String, Number or Binary. No set data types are allowed.
The data type for ExclusiveStartKey must be String, Number or Binary. No set data types are allowed.
public void setExclusiveStartKey(Map<String,AttributeValue> exclusiveStartKey)
The data type for ExclusiveStartKey must be String, Number or Binary. No set data types are allowed.
exclusiveStartKey - The primary key of the item from which to continue an earlier
operation. An earlier operation might provide this value as the
LastEvaluatedKey if that operation was interrupted before
completion; either because of the result set size or because of the
setting for Limit. The LastEvaluatedKey can be passed
back in a new request to continue the operation from that point.
The data type for ExclusiveStartKey must be String, Number or Binary. No set data types are allowed.
public ScanRequest withExclusiveStartKey(Map<String,AttributeValue> exclusiveStartKey)
The data type for ExclusiveStartKey must be String, Number or Binary. No set data types are allowed.
Returns a reference to this object so that method calls can be chained together.
exclusiveStartKey - The primary key of the item from which to continue an earlier
operation. An earlier operation might provide this value as the
LastEvaluatedKey if that operation was interrupted before
completion; either because of the result set size or because of the
setting for Limit. The LastEvaluatedKey can be passed
back in a new request to continue the operation from that point.
The data type for ExclusiveStartKey must be String, Number or Binary. No set data types are allowed.
public String getReturnConsumedCapacity()
TOTAL, then this information is
shown in the output; otherwise, the consumed capacity information is
not shown.
Constraints:
Allowed Values: TOTAL, NONE
TOTAL, then this information is
shown in the output; otherwise, the consumed capacity information is
not shown.ReturnConsumedCapacitypublic void setReturnConsumedCapacity(String returnConsumedCapacity)
TOTAL, then this information is
shown in the output; otherwise, the consumed capacity information is
not shown.
Constraints:
Allowed Values: TOTAL, NONE
returnConsumedCapacity - Determines whether to include consumed capacity information in the
output. If this is set to TOTAL, then this information is
shown in the output; otherwise, the consumed capacity information is
not shown.ReturnConsumedCapacitypublic ScanRequest withReturnConsumedCapacity(String returnConsumedCapacity)
TOTAL, then this information is
shown in the output; otherwise, the consumed capacity information is
not shown.
Returns a reference to this object so that method calls can be chained together.
Constraints:
Allowed Values: TOTAL, NONE
returnConsumedCapacity - Determines whether to include consumed capacity information in the
output. If this is set to TOTAL, then this information is
shown in the output; otherwise, the consumed capacity information is
not shown.
ReturnConsumedCapacitypublic void setReturnConsumedCapacity(ReturnConsumedCapacity returnConsumedCapacity)
TOTAL, then this information is
shown in the output; otherwise, the consumed capacity information is
not shown.
Constraints:
Allowed Values: TOTAL, NONE
returnConsumedCapacity - Determines whether to include consumed capacity information in the
output. If this is set to TOTAL, then this information is
shown in the output; otherwise, the consumed capacity information is
not shown.ReturnConsumedCapacitypublic ScanRequest withReturnConsumedCapacity(ReturnConsumedCapacity returnConsumedCapacity)
TOTAL, then this information is
shown in the output; otherwise, the consumed capacity information is
not shown.
Returns a reference to this object so that method calls can be chained together.
Constraints:
Allowed Values: TOTAL, NONE
returnConsumedCapacity - Determines whether to include consumed capacity information in the
output. If this is set to TOTAL, then this information is
shown in the output; otherwise, the consumed capacity information is
not shown.
ReturnConsumedCapacitypublic String toString()
toString in class ObjectObject.toString()public int hashCode()
hashCode in class Objectpublic boolean equals(Object obj)
equals in class Object
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