Package 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

Constructors

Constructor	Description
MatchNoDocsQueryNode()

Method Summary

Modifier and Type	Method	Description
String	toString()	Every implementation of this class should return pseudo xml like this:

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, removeChildren, removeFromParent, set, setLeaf, setTag, unsetTag

Methods inherited from class java.lang.Object

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

Constructor Details

MatchNoDocsQueryNode

public MatchNoDocsQueryNode()

Method Details

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()