org.apache.lucene.queryparser.flexible.core.nodes
Class MatchNoDocsQueryNode

java.lang.Object
  org.apache.lucene.queryparser.flexible.core.nodes.QueryNodeImpl
      org.apache.lucene.queryparser.flexible.core.nodes.DeletedQueryNode
          org.apache.lucene.queryparser.flexible.core.nodes.MatchNoDocsQueryNode

All Implemented Interfaces:

Cloneable, QueryNode

public class MatchNoDocsQueryNode
extends DeletedQueryNode

A MatchNoDocsQueryNode indicates that a query node tree or subtree will not match any documents if executed in the index.

Field Summary

Fields inherited from class org.apache.lucene.queryparser.flexible.core.nodes.QueryNodeImpl

PLAINTEXT_FIELD_NAME, toQueryStringIgnoreFields

Constructor Summary

MatchNoDocsQueryNode()

Method Summary

String

toString() Every implementation of this class should return pseudo xml like this: For FieldQueryNode: <field start='1' end='2' field='subject' text='foo'/>

Methods inherited from class org.apache.lucene.queryparser.flexible.core.nodes.DeletedQueryNode

cloneTree, toQueryString

Methods inherited from class org.apache.lucene.queryparser.flexible.core.nodes.QueryNodeImpl

add, add, allocate, clone, containsTag, getChildren, getParent, getTag, getTagMap, isDefaultField, isLeaf, isRoot, set, setLeaf, setTag, unsetTag

Methods inherited from class java.lang.Object

equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

MatchNoDocsQueryNode

public MatchNoDocsQueryNode()

Method Detail

toString

public String 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 interface QueryNode

Overrides:

toString in class DeletedQueryNode

See Also:

QueryNode.toString()