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Sub Packages:

org.apache.lucene.queryParser.core.builders   Contains the necessary classes to implement query builders Query Parser Builders The package org.apache.lucene.queryParser.builders contains the interface that builders must implement, it also contain a utility org.apache.lucene.queryParser.core.builders.QueryTreeBuilder , which walks the tree and call the Builder for each node in the tree.  
org.apache.lucene.queryParser.core.config   Contains the base classes used to configure the query processing Query Configuration Interfaces The package org.apache.lucene.queryParser.config contains query configuration handler abstract class that all config handlers should extend.  
org.apache.lucene.queryParser.core.messages   Contains messages usually used by query parser implementations Query Parser Messages Messages for the Flexible Query Parser, they use org.apache.lucene.messages.NLS API.  
org.apache.lucene.queryParser.core.nodes   Contains query nodes that are commonly used by query parser implementations Query Nodes The package org.apache.lucene.queryParser.nodes contains all the basic query nodes.  
org.apache.lucene.queryParser.core.parser   Contains the necessary interfaces to implement text parsers Parser The package org.apache.lucene.queryParser.parser contains interfaces that should be implemented by the parsers.  
org.apache.lucene.queryParser.core.processors   Interfaces and implementations used by query node processors Query Node Processors The package org.apache.lucene.queryParser.processors contains interfaces that should be implemented by every query node processor.  
org.apache.lucene.queryParser.core.util   Utility classes to used with the Query Parser Utility classes to used with the Query Parser This package contains utility classes used with the query parsers.  


QueryNodeError   Error class with NLS support  code | html

This exception should be thrown if something wrong happens when dealing with QueryNode s. 

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QueryNodeParseException   This should be thrown when an exception happens during the query parsing from string to the query node tree.  code | html

This class is a helper for the query parser framework, it does all the three query parser phrases at once: text parsing, query processing and query building. 

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