org.apache.lucene.queryParser.core.nodes
Class MatchAllDocsQueryNode

java.lang.Object
  extended by org.apache.lucene.queryParser.core.nodes.QueryNodeImpl
      extended by org.apache.lucene.queryParser.core.nodes.MatchAllDocsQueryNode
All Implemented Interfaces:
Serializable, Cloneable, QueryNode

public class MatchAllDocsQueryNode
extends QueryNodeImpl

A MatchAllDocsQueryNode indicates that a query node tree or subtree will match all documents if executed in the index.

See Also:
Serialized Form

Field Summary
 
Fields inherited from class org.apache.lucene.queryParser.core.nodes.QueryNodeImpl
PLAINTEXT_FIELD_NAME, toQueryStringIgnoreFields
 
Constructor Summary
MatchAllDocsQueryNode()
           
 
Method Summary
 MatchAllDocsQueryNode cloneTree()
          Recursive clone the QueryNode tree The tags are not copied to the new tree when you call the cloneTree() method
 CharSequence toQueryString(EscapeQuerySyntax escapeSyntaxParser)
          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.QueryNodeImpl
add, add, allocate, clone, containsTag, containsTag, getChildren, getParent, getTag, getTag, getTagMap, getTags, isDefaultField, isLeaf, isRoot, set, setLeaf, setTag, setTag, unsetTag, unsetTag
 
Methods inherited from class java.lang.Object
equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
 

Constructor Detail

MatchAllDocsQueryNode

public MatchAllDocsQueryNode()
Method Detail

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 QueryNodeImpl
See Also:
QueryNode.toString()

toQueryString

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


cloneTree

public MatchAllDocsQueryNode 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


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