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

Class OpaqueQueryNode

java.lang.Object

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

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

Constructors

Constructor and Description
OpaqueQueryNode(CharSequence schema, CharSequence value)

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	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, removeChildren, removeFromParent, 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