Class PrefixWildcardQueryNode

  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
              extended by org.apache.lucene.queryParser.standard.nodes.PrefixWildcardQueryNode
All Implemented Interfaces:
Serializable, Cloneable, FieldableNode, QueryNode, TextableQueryNode

public class PrefixWildcardQueryNode
extends WildcardQueryNode

A PrefixWildcardQueryNode represents wildcardquery that matches abc* or *. This does not apply to phrases, this is a special case on the original lucene parser. TODO: refactor the code to remove this special case from the parser. and probably do it on a Processor

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
PrefixWildcardQueryNode(CharSequence field, CharSequence text, int begin, int end)
PrefixWildcardQueryNode(FieldQueryNode fqn)
Method Summary
 PrefixWildcardQueryNode cloneTree()
          Recursive clone the QueryNode tree The tags are not copied to the new tree when you call the cloneTree() method
 String toString()
          Every implementation of this class should return pseudo xml like this: For FieldQueryNode:
Methods inherited from class org.apache.lucene.queryParser.standard.nodes.WildcardQueryNode
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


public PrefixWildcardQueryNode(CharSequence field,
                               CharSequence text,
                               int begin,
                               int end)
field - - field name
text - - value including the wildcard
begin - - position in the query string
end - - position in the query string


public PrefixWildcardQueryNode(FieldQueryNode fqn)
Method Detail


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
toString in class WildcardQueryNode
See Also:


public PrefixWildcardQueryNode 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
cloneTree in class WildcardQueryNode
the cloned tree

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