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

java.lang.Object
  extended by org.apache.lucene.queryparser.flexible.core.nodes.QueryNodeImpl
      extended by org.apache.lucene.queryparser.flexible.core.nodes.OpaqueQueryNode
All Implemented Interfaces:
Cloneable, QueryNode

public class OpaqueQueryNode
extends QueryNodeImpl

A OpaqueQueryNode is used for specify values that are not supposed to be parsed by the parser. For example: and XPATH query in the middle of a query string a b @xpath:'/bookstore/book[1]/title' c d


Field Summary
 
Fields inherited from class org.apache.lucene.queryparser.flexible.core.nodes.QueryNodeImpl
PLAINTEXT_FIELD_NAME, toQueryStringIgnoreFields
 
Constructor Summary
OpaqueQueryNode(CharSequence schema, CharSequence value)
           
 
Method Summary
 QueryNode cloneTree()
          Recursive clone the QueryNode tree The tags are not copied to the new tree when you call the cloneTree() method
 CharSequence getSchema()
           
 CharSequence getValue()
           
 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: <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, set, setLeaf, setTag, unsetTag
 
Methods inherited from class java.lang.Object
equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
 

Constructor Detail

OpaqueQueryNode

public OpaqueQueryNode(CharSequence schema,
                       CharSequence value)
Parameters:
schema - - schema identifier
value - - value that was not parsed
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 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 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

getSchema

public CharSequence getSchema()
Returns:
the schema

getValue

public CharSequence getValue()
Returns:
the value


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