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

Class DeletedQueryNode

java.lang.Object

org.apache.lucene.queryparser.flexible.core.nodes.QueryNodeImpl

org.apache.lucene.queryparser.flexible.core.nodes.DeletedQueryNode

All Implemented Interfaces:

Cloneable, QueryNode

Direct Known Subclasses:

MatchNoDocsQueryNode, NoTokenFoundQueryNode

public class DeletedQueryNode
extends QueryNodeImpl

A DeletedQueryNode represents a node that was deleted from the query node tree. It can be removed from the tree using the RemoveDeletedQueryNodesProcessor processor.

Field Summary

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

PLAINTEXT_FIELD_NAME, toQueryStringIgnoreFields

Constructor Summary

Constructors

Constructor and Description
DeletedQueryNode()

Method Summary

Modifier and Type	Method and Description
QueryNode	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: <field start='1' end='2' field='subject' text='foo'/>

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 Detail

DeletedQueryNode

public DeletedQueryNode()

Method Detail

toQueryString

public CharSequence toQueryString(EscapeQuerySyntax escaper)

Description copied from interface: QueryNode

convert to a query string understood by the query parser

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 QueryNodeImpl

See Also:

QueryNode.toString()

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