org.apache.lucene.queryParser.core.nodes
Class ModifierQueryNode
java.lang.Object
org.apache.lucene.queryParser.core.nodes.QueryNodeImpl
org.apache.lucene.queryParser.core.nodes.ModifierQueryNode
- All Implemented Interfaces:
- Serializable, Cloneable, QueryNode
- Direct Known Subclasses:
- BooleanModifierNode
public class ModifierQueryNode
- extends QueryNodeImpl
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>
- See Also:
- Serialized Form
Methods inherited from class org.apache.lucene.queryParser.core.nodes.QueryNodeImpl |
add, add, allocate, clone, containsTag, containsTag, getChildren, getParent, getTag, getTag, getTagMap, getTags, isDefaultField, isLeaf, isRoot, set, setLeaf, setTag, setTag, unsetTag, unsetTag |
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
getChild
public QueryNode getChild()
getModifier
public ModifierQueryNode.Modifier getModifier()
toString
public String toString()
- Description copied from class:
QueryNodeImpl
- Every implementation of this class should return pseudo xml like this:
For FieldQueryNode:
- Specified by:
toString
in interface QueryNode
- Overrides:
toString
in class QueryNodeImpl
- See Also:
QueryNode.toString()
toQueryString
public CharSequence toQueryString(EscapeQuerySyntax escapeSyntaxParser)
- Description copied from interface:
QueryNode
- convert to a query string understood by the query parser
cloneTree
public QueryNode cloneTree()
throws CloneNotSupportedException
- 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 interface QueryNode
- Overrides:
cloneTree
in class QueryNodeImpl
- Returns:
- the cloned tree
- Throws:
CloneNotSupportedException
setChild
public void setChild(QueryNode child)
- Parameters:
child
-
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