Class ModifierQueryNode
java.lang.Object
org.apache.lucene.queryparser.flexible.core.nodes.QueryNodeImpl
org.apache.lucene.queryparser.flexible.core.nodes.ModifierQueryNode
- Direct Known Subclasses:
BooleanModifierNode
A
ModifierQueryNode
indicates the modifier value (+,-,?,NONE) for each term on the query
string. For example "+t1 -t2 t3" will have a tree of:
<BooleanQueryNode> <ModifierQueryNode modifier="MOD_REQ"> <t1/> </ModifierQueryNode> <ModifierQueryNode modifier="MOD_NOT"> <t2/> </ModifierQueryNode> <t3/> </BooleanQueryNode>
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Nested Class Summary
Modifier and TypeClassDescriptionstatic enum
Modifier type: such as required (REQ), prohibited (NOT) -
Field Summary
Fields inherited from class org.apache.lucene.queryparser.flexible.core.nodes.QueryNodeImpl
PLAINTEXT_FIELD_NAME, toQueryStringIgnoreFields
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Constructor Summary
ConstructorDescriptionModifierQueryNode
(QueryNode query, ModifierQueryNode.Modifier mod) Used to store the modifier value on the original query string -
Method Summary
Modifier and TypeMethodDescriptionRecursive clone the QueryNode tree The tags are not copied to the new tree when you call the cloneTree() methodgetChild()
void
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
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Constructor Details
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ModifierQueryNode
Used to store the modifier value on the original query string- Parameters:
query
- - QueryNode subtreemod
- - Modifier Value
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Method Details
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getChild
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getModifier
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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 -
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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setChild
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