Class ModifierQueryNode
- java.lang.Object
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- org.apache.lucene.queryparser.flexible.core.nodes.QueryNodeImpl
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- org.apache.lucene.queryparser.flexible.core.nodes.ModifierQueryNode
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- Direct Known Subclasses:
BooleanModifierNode
public class ModifierQueryNode extends QueryNodeImpl
AModifierQueryNodeindicates 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
Nested Classes Modifier and Type Class Description static classModifierQueryNode.ModifierModifier type: such as required (REQ), prohibited (NOT)
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Field Summary
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Fields inherited from class org.apache.lucene.queryparser.flexible.core.nodes.QueryNodeImpl
PLAINTEXT_FIELD_NAME, toQueryStringIgnoreFields
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Constructor Summary
Constructors Constructor Description ModifierQueryNode(QueryNode query, ModifierQueryNode.Modifier mod)Used to store the modifier value on the original query string
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description QueryNodecloneTree()Recursive clone the QueryNode tree The tags are not copied to the new tree when you call the cloneTree() methodQueryNodegetChild()ModifierQueryNode.ModifiergetModifier()voidsetChild(QueryNode child)CharSequencetoQueryString(EscapeQuerySyntax escapeSyntaxParser)convert to a query string understood by the query parserStringtoString()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 Detail
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ModifierQueryNode
public ModifierQueryNode(QueryNode query, ModifierQueryNode.Modifier mod)
Used to store the modifier value on the original query string- Parameters:
query- - QueryNode subtreemod- - Modifier Value
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Method Detail
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getChild
public QueryNode getChild()
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getModifier
public ModifierQueryNode.Modifier getModifier()
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toString
public String toString()
Description copied from class:QueryNodeImplEvery implementation of this class should return pseudo xml like this:For FieldQueryNode: <field start='1' end='2' field='subject' text='foo'/>
- Specified by:
toStringin interfaceQueryNode- Overrides:
toStringin classQueryNodeImpl- See Also:
QueryNode.toString()
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toQueryString
public CharSequence toQueryString(EscapeQuerySyntax escapeSyntaxParser)
Description copied from interface:QueryNodeconvert to a query string understood by the query parser
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cloneTree
public QueryNode cloneTree() throws CloneNotSupportedException
Description copied from interface:QueryNodeRecursive clone the QueryNode tree The tags are not copied to the new tree when you call the cloneTree() method- Specified by:
cloneTreein interfaceQueryNode- Overrides:
cloneTreein classQueryNodeImpl- Returns:
- the cloned tree
- Throws:
CloneNotSupportedException
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setChild
public void setChild(QueryNode child)
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