org.apache.lucene.queryparser.flexible.standard.processors

Class LowercaseExpandedTermsQueryNodeProcessor

java.lang.Object

org.apache.lucene.queryparser.flexible.core.processors.QueryNodeProcessorImpl

org.apache.lucene.queryparser.flexible.standard.processors.LowercaseExpandedTermsQueryNodeProcessor

All Implemented Interfaces:

QueryNodeProcessor

public class LowercaseExpandedTermsQueryNodeProcessor
extends QueryNodeProcessorImpl

This processor verifies if StandardQueryConfigHandler.ConfigurationKeys.LOWERCASE_EXPANDED_TERMS is defined in the QueryConfigHandler. If it is and the expanded terms should be lower-cased, it looks for every WildcardQueryNode, FuzzyQueryNode and children of a RangeQueryNode and lower-case its term.

See Also:

StandardQueryConfigHandler.ConfigurationKeys.LOWERCASE_EXPANDED_TERMS

Constructor Summary

Constructors

Constructor and Description
LowercaseExpandedTermsQueryNodeProcessor()

Method Summary

Modifier and Type	Method and Description
QueryNode	process(QueryNode queryTree) Processes a query node tree.

Methods inherited from class org.apache.lucene.queryparser.flexible.core.processors.QueryNodeProcessorImpl

getQueryConfigHandler, setQueryConfigHandler

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

LowercaseExpandedTermsQueryNodeProcessor

public LowercaseExpandedTermsQueryNodeProcessor()

Method Detail

process

public QueryNode process(QueryNode queryTree)
                  throws QueryNodeException

Description copied from interface: QueryNodeProcessor

Processes a query node tree. It may return the same or another query tree. I should never return null.

Specified by:

process in interface QueryNodeProcessor

Overrides:

process in class QueryNodeProcessorImpl

Parameters:

queryTree - tree root node

Returns:

the processed query tree

Throws:

QueryNodeException