public class AbstractAmazonSimpleDB extends Object implements AmazonSimpleDB
AmazonSimpleDB. Convenient method forms
pass through to the corresponding overload that takes a request object, which
throws an UnsupportedOperationException.| Modifier | Constructor and Description |
|---|---|
protected |
AbstractAmazonSimpleDB() |
| Modifier and Type | Method and Description |
|---|---|
BatchDeleteAttributesResult |
batchDeleteAttributes(BatchDeleteAttributesRequest request)
Performs multiple DeleteAttributes operations in a single call, which
reduces round trips and latencies.
|
BatchPutAttributesResult |
batchPutAttributes(BatchPutAttributesRequest request)
The
BatchPutAttributes operation creates or replaces
attributes within one or more items. |
CreateDomainResult |
createDomain(CreateDomainRequest request)
The
CreateDomain operation creates a new domain. |
DeleteAttributesResult |
deleteAttributes(DeleteAttributesRequest request)
Deletes one or more attributes associated with an item.
|
DeleteDomainResult |
deleteDomain(DeleteDomainRequest request)
The
DeleteDomain operation deletes a domain. |
DomainMetadataResult |
domainMetadata(DomainMetadataRequest request)
Returns information about the domain, including when the domain was
created, the number of items and attributes in the domain, and the size
of the attribute names and values.
|
GetAttributesResult |
getAttributes(GetAttributesRequest request)
Returns all of the attributes associated with the specified item.
|
ListDomainsResult |
listDomains()
Simplified method form for invoking the ListDomains operation.
|
ListDomainsResult |
listDomains(ListDomainsRequest request)
The
ListDomains operation lists all domains associated with
the Access Key ID. |
PutAttributesResult |
putAttributes(PutAttributesRequest request)
The PutAttributes operation creates or replaces attributes in an item.
|
SelectResult |
select(SelectRequest request)
The
Select operation returns a set of attributes for
ItemNames that match the select expression. |
void |
setEndpoint(String endpoint)
Overrides the default endpoint for this client ("sdb.amazonaws.com").
|
void |
setRegion(Region region)
An alternative to
AmazonSimpleDB.setEndpoint(String), sets the
regional endpoint for this client's service calls. |
public void setEndpoint(String endpoint)
AmazonSimpleDB
Callers can pass in just the endpoint (ex: "sdb.amazonaws.com") or a full
URL, including the protocol (ex: "sdb.amazonaws.com"). If the protocol is
not specified here, the default protocol from this client's
ClientConfiguration will be used, which by default is HTTPS.
For more information on using AWS regions with the AWS SDK for Java, and a complete list of all available endpoints for all AWS services, see: http://developer.amazonwebservices.com/connect/entry.jspa?externalID= 3912
This method is not threadsafe. An endpoint should be configured when the client is created and before any service requests are made. Changing it afterwards creates inevitable race conditions for any service requests in transit or retrying.
setEndpoint in interface AmazonSimpleDBendpoint - The endpoint (ex: "sdb.amazonaws.com") or a full URL, including
the protocol (ex: "sdb.amazonaws.com") of the region specific AWS
endpoint this client will communicate with.public void setRegion(Region region)
AmazonSimpleDBAmazonSimpleDB.setEndpoint(String), sets the
regional endpoint for this client's service calls. Callers can use this
method to control which AWS region they want to work with.
By default, all service endpoints in all regions use the https protocol.
To use http instead, specify it in the ClientConfiguration
supplied at construction.
This method is not threadsafe. A region should be configured when the client is created and before any service requests are made. Changing it afterwards creates inevitable race conditions for any service requests in transit or retrying.
setRegion in interface AmazonSimpleDBregion - The region this client will communicate with. See
Region.getRegion(com.amazonaws.regions.Regions) for
accessing a given region. Must not be null and must be a region
where the service is available.Region.getRegion(com.amazonaws.regions.Regions),
Region.createClient(Class,
com.amazonaws.auth.AWSCredentialsProvider, ClientConfiguration),
Region.isServiceSupported(String)public BatchDeleteAttributesResult batchDeleteAttributes(BatchDeleteAttributesRequest request)
AmazonSimpleDBPerforms multiple DeleteAttributes operations in a single call, which reduces round trips and latencies. This enables Amazon SimpleDB to optimize requests, which generally yields better throughput.
The following limitations are enforced for this operation:
batchDeleteAttributes in interface AmazonSimpleDBpublic BatchPutAttributesResult batchPutAttributes(BatchPutAttributesRequest request)
AmazonSimpleDB
The BatchPutAttributes operation creates or replaces
attributes within one or more items. By using this operation, the client
can perform multiple PutAttribute operation with a single call.
This helps yield savings in round trips and latencies, enabling Amazon
SimpleDB to optimize requests and generally produce better throughput.
The client may specify the item name with the
Item.X.ItemName parameter. The client may specify new
attributes using a combination of the
Item.X.Attribute.Y.Name and
Item.X.Attribute.Y.Value parameters. The client may specify
the first attribute for the first item using the parameters
Item.0.Attribute.0.Name and
Item.0.Attribute.0.Value, and for the second attribute for
the first item by the parameters Item.0.Attribute.1.Name and
Item.0.Attribute.1.Value, and so on.
Attributes are uniquely identified within an item by their name/value
combination. For example, a single item can have the attributes
{ "first_name", "first_value" } and
{ "first_name", "second_value" }. However, it cannot have
two attribute instances where both the
Item.X.Attribute.Y.Name and
Item.X.Attribute.Y.Value are the same.
Optionally, the requester can supply the Replace parameter
for each individual value. Setting this value to true will
cause the new attribute values to replace the existing attribute values.
For example, if an item I has the attributes
{ 'a', '1' }, { 'b', '2'} and { 'b', '3' } and
the requester does a BatchPutAttributes of {'I', 'b', '4' }
with the Replace parameter set to true, the final attributes of the item
will be { 'a', '1' } and { 'b', '4' },
replacing the previous values of the 'b' attribute with the new value.
Expected.X.Name,
Expected.X.Value, or Expected.X.Exists.
You can execute multiple BatchPutAttributes operations and
other operations in parallel. However, large numbers of concurrent
BatchPutAttributes calls can result in Service Unavailable
(503) responses.
The following limitations are enforced for this operation:
BatchPutAttributes operationbatchPutAttributes in interface AmazonSimpleDBpublic CreateDomainResult createDomain(CreateDomainRequest request)
AmazonSimpleDB
The CreateDomain operation creates a new domain. The domain
name should be unique among the domains associated with the Access Key ID
provided in the request. The CreateDomain operation may take
10 or more seconds to complete.
The client can create up to 100 domains per account.
If the client requires additional domains, go to http://aws.amazon.com/contact-us/simpledb-limit-request/.
createDomain in interface AmazonSimpleDBpublic DeleteAttributesResult deleteAttributes(DeleteAttributesRequest request)
AmazonSimpleDBDeletes one or more attributes associated with an item. If all attributes of the item are deleted, the item is deleted.
DeleteAttributes is an idempotent operation; running it
multiple times on the same item or attribute does not result in an error
response.
Because Amazon SimpleDB makes multiple copies of item data and uses an
eventual consistency update model, performing a GetAttributes or
Select operation (read) immediately after a
DeleteAttributes or PutAttributes operation (write)
might not return updated item data.
deleteAttributes in interface AmazonSimpleDBpublic DeleteDomainResult deleteDomain(DeleteDomainRequest request)
AmazonSimpleDB
The DeleteDomain operation deletes a domain. Any items (and
their attributes) in the domain are deleted as well. The
DeleteDomain operation might take 10 or more seconds to
complete.
deleteDomain in interface AmazonSimpleDBpublic DomainMetadataResult domainMetadata(DomainMetadataRequest request)
AmazonSimpleDBReturns information about the domain, including when the domain was created, the number of items and attributes in the domain, and the size of the attribute names and values.
domainMetadata in interface AmazonSimpleDBpublic GetAttributesResult getAttributes(GetAttributesRequest request)
AmazonSimpleDBReturns all of the attributes associated with the specified item. Optionally, the attributes returned can be limited to one or more attributes by specifying an attribute name parameter.
If the item does not exist on the replica that was accessed for this operation, an empty set is returned. The system does not return an error as it cannot guarantee the item does not exist on other replicas.
getAttributes in interface AmazonSimpleDBpublic ListDomainsResult listDomains(ListDomainsRequest request)
AmazonSimpleDB
The ListDomains operation lists all domains associated with
the Access Key ID. It returns domain names up to the limit set by MaxNumberOfDomains. A NextToken is returned if there are more than
MaxNumberOfDomains domains. Calling ListDomains
successive times with the NextToken provided by the
operation returns up to MaxNumberOfDomains more domain names
with each successive operation call.
listDomains in interface AmazonSimpleDBpublic ListDomainsResult listDomains()
AmazonSimpleDBlistDomains in interface AmazonSimpleDBAmazonSimpleDB.listDomains(ListDomainsRequest)public PutAttributesResult putAttributes(PutAttributesRequest request)
AmazonSimpleDB
The PutAttributes operation creates or replaces attributes in an item.
The client may specify new attributes using a combination of the
Attribute.X.Name and Attribute.X.Value
parameters. The client specifies the first attribute by the parameters
Attribute.0.Name and Attribute.0.Value, the
second attribute by the parameters Attribute.1.Name and
Attribute.1.Value, and so on.
Attributes are uniquely identified in an item by their name/value
combination. For example, a single item can have the attributes
{ "first_name", "first_value" } and
{ "first_name", second_value" }. However, it cannot have two
attribute instances where both the Attribute.X.Name and
Attribute.X.Value are the same.
Optionally, the requestor can supply the Replace parameter
for each individual attribute. Setting this value to true
causes the new attribute value to replace the existing attribute
value(s). For example, if an item has the attributes
{ 'a', '1' }, { 'b', '2'} and
{ 'b', '3' } and the requestor calls
PutAttributes using the attributes { 'b', '4' }
with the Replace parameter set to true, the final attributes
of the item are changed to { 'a', '1' } and
{ 'b', '4' }, which replaces the previous values of the 'b'
attribute with the new value.
You cannot specify an empty string as an attribute name.
Because Amazon SimpleDB makes multiple copies of client data and uses an eventual consistency update model, an immediate GetAttributes or Select operation (read) immediately after a PutAttributes or DeleteAttributes operation (write) might not return the updated data.
The following limitations are enforced for this operation:
putAttributes in interface AmazonSimpleDBpublic SelectResult select(SelectRequest request)
AmazonSimpleDB
The Select operation returns a set of attributes for
ItemNames that match the select expression.
Select is similar to the standard SQL SELECT statement.
The total size of the response cannot exceed 1 MB in total size. Amazon
SimpleDB automatically adjusts the number of items returned per page to
enforce this limit. For example, if the client asks to retrieve 2500
items, but each individual item is 10 kB in size, the system returns 100
items and an appropriate NextToken so the client can access
the next page of results.
For information on how to construct select expressions, see Using Select to Create Amazon SimpleDB Queries in the Developer Guide.
select in interface AmazonSimpleDBCopyright © 2016. All rights reserved.