org.apache.lucene.queryParser.standard.nodes
Class WildcardQueryNode

java.lang.Object
  extended by org.apache.lucene.queryParser.core.nodes.QueryNodeImpl
      extended by org.apache.lucene.queryParser.core.nodes.FieldQueryNode
          extended by org.apache.lucene.queryParser.standard.nodes.WildcardQueryNode
All Implemented Interfaces:
Serializable, Cloneable, FieldableNode, QueryNode, TextableQueryNode
Direct Known Subclasses:
PrefixWildcardQueryNode

public class WildcardQueryNode
extends FieldQueryNode

A WildcardQueryNode represents wildcard query This does not apply to phrases. Examples: a*b*c Fl?w? m?ke*g

See Also:
Serialized Form

Field Summary
 
Fields inherited from class org.apache.lucene.queryParser.core.nodes.FieldQueryNode
begin, end, field, positionIncrement, text
 
Fields inherited from class org.apache.lucene.queryParser.core.nodes.QueryNodeImpl
PLAINTEXT_FIELD_NAME, toQueryStringIgnoreFields
 
Constructor Summary
WildcardQueryNode(CharSequence field, CharSequence text, int begin, int end)
           
WildcardQueryNode(FieldQueryNode fqn)
           
 
Method Summary
 WildcardQueryNode cloneTree()
          Recursive clone the QueryNode tree The tags are not copied to the new tree when you call the cloneTree() method
 CharSequence toQueryString(EscapeQuerySyntax escaper)
          convert to a query string understood by the query parser
 String toString()
          Every implementation of this class should return pseudo xml like this: For FieldQueryNode:
 
Methods inherited from class org.apache.lucene.queryParser.core.nodes.FieldQueryNode
getBegin, getEnd, getField, getFieldAsString, getPositionIncrement, getTermEscaped, getTermEscapeQuoted, getText, getTextAsString, setBegin, setEnd, setField, setPositionIncrement, setText
 
Methods inherited from class org.apache.lucene.queryParser.core.nodes.QueryNodeImpl
add, add, allocate, clone, containsTag, getChildren, getParent, getTag, getTags, isDefaultField, isLeaf, isRoot, 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.core.nodes.QueryNode
add, add, containsTag, getChildren, getParent, getTag, getTags, isLeaf, set, setTag, unsetTag
 

Constructor Detail

WildcardQueryNode

public WildcardQueryNode(CharSequence field,
                         CharSequence text,
                         int begin,
                         int end)
Parameters:
field - - field name
text - - value that contains one or more wild card characters (? or *)
begin - - position in the query string
end - - position in the query string

WildcardQueryNode

public WildcardQueryNode(FieldQueryNode fqn)
Method Detail

toQueryString

public CharSequence toQueryString(EscapeQuerySyntax escaper)
Description copied from interface: QueryNode
convert to a query string understood by the query parser

Specified by:
toQueryString in interface QueryNode
Overrides:
toQueryString in class FieldQueryNode

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 FieldQueryNode
See Also:
QueryNode.toString()

cloneTree

public WildcardQueryNode 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 FieldQueryNode
Returns:
the cloned tree
Throws:
CloneNotSupportedException


Copyright © 2000-2010 Apache Software Foundation. All Rights Reserved.