Class SlopQueryNode
java.lang.Object
org.apache.lucene.queryparser.flexible.core.nodes.QueryNodeImpl
org.apache.lucene.queryparser.flexible.core.nodes.SlopQueryNode
- All Implemented Interfaces:
Cloneable
,FieldableNode
,QueryNode
A
SlopQueryNode
represents phrase query with a slop.
From Lucene FAQ: Is there a way to use a proximity operator (like near or within) with Lucene? There is a variable called slop that allows you to perform NEAR/WITHIN-like queries. By default, slop is set to 0 so that only exact phrases will match. When using TextParser you can use this syntax to specify the slop: "doug cutting"~2 will find documents that contain "doug cutting" as well as ones that contain "cutting doug".
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Field Summary
Fields inherited from class org.apache.lucene.queryparser.flexible.core.nodes.QueryNodeImpl
PLAINTEXT_FIELD_NAME, toQueryStringIgnoreFields
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Constructor Summary
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Method Summary
Modifier and TypeMethodDescriptionRecursive clone the QueryNode tree The tags are not copied to the new tree when you call the cloneTree() methodgetChild()
getField()
Returns the field associated to the node and every node under it.int
getValue()
void
setField
(CharSequence fieldName) Associates the node to a field.toQueryString
(EscapeQuerySyntax escapeSyntaxParser) convert to a query string understood by the query parsertoString()
Every implementation of this class should return pseudo xml like this:Methods inherited from class org.apache.lucene.queryparser.flexible.core.nodes.QueryNodeImpl
add, add, allocate, clone, containsTag, getChildren, getParent, getTag, getTagMap, isDefaultField, isLeaf, isRoot, removeChildren, removeFromParent, set, setLeaf, setTag, unsetTag
Methods inherited from class java.lang.Object
equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
Methods inherited from interface org.apache.lucene.queryparser.flexible.core.nodes.QueryNode
add, add, containsTag, getChildren, getParent, getTag, getTagMap, isLeaf, removeChildren, removeFromParent, set, setTag, unsetTag
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Constructor Details
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SlopQueryNode
- Parameters:
query
- - QueryNode Tree with the phrasevalue
- - slop value
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Method Details
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getChild
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getValue
public int getValue() -
toString
Description copied from class:QueryNodeImpl
Every implementation of this class should return pseudo xml like this:For FieldQueryNode: <field start='1' end='2' field='subject' text='foo'/>
- Specified by:
toString
in interfaceQueryNode
- Overrides:
toString
in classQueryNodeImpl
- See Also:
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toQueryString
Description copied from interface:QueryNode
convert to a query string understood by the query parser- Specified by:
toQueryString
in interfaceQueryNode
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cloneTree
Description copied from interface:QueryNode
Recursive clone the QueryNode tree The tags are not copied to the new tree when you call the cloneTree() method- Specified by:
cloneTree
in interfaceQueryNode
- Overrides:
cloneTree
in classQueryNodeImpl
- Returns:
- the cloned tree
- Throws:
CloneNotSupportedException
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getField
Description copied from interface:FieldableNode
Returns the field associated to the node and every node under it.- Specified by:
getField
in interfaceFieldableNode
- Returns:
- the field name
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setField
Description copied from interface:FieldableNode
Associates the node to a field.- Specified by:
setField
in interfaceFieldableNode
- Parameters:
fieldName
- the field name
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