Class AllowLeadingWildcardProcessor
- java.lang.Object
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- org.apache.lucene.queryparser.flexible.core.processors.QueryNodeProcessorImpl
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- org.apache.lucene.queryparser.flexible.standard.processors.AllowLeadingWildcardProcessor
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- All Implemented Interfaces:
QueryNodeProcessor
public class AllowLeadingWildcardProcessor extends QueryNodeProcessorImpl
This processor verifies ifStandardQueryConfigHandler.ConfigurationKeys.ALLOW_LEADING_WILDCARD
is defined in theQueryConfigHandler
. If it is and leading wildcard is not allowed, it looks for everyWildcardQueryNode
contained in the query node tree and throws an exception if any of them has a leading wildcard ('*' or '?').
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Constructor Summary
Constructors Constructor Description AllowLeadingWildcardProcessor()
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description QueryNode
process(QueryNode queryTree)
Processes a query node tree.-
Methods inherited from class org.apache.lucene.queryparser.flexible.core.processors.QueryNodeProcessorImpl
getQueryConfigHandler, setQueryConfigHandler
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Method Detail
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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 returnnull
.- Specified by:
process
in interfaceQueryNodeProcessor
- Overrides:
process
in classQueryNodeProcessorImpl
- Parameters:
queryTree
- tree root node- Returns:
- the processed query tree
- Throws:
QueryNodeException
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