org.apache.lucene.queries.function.valuesource
Class QueryValueSource

java.lang.Object
  extended by org.apache.lucene.queries.function.ValueSource
      extended by org.apache.lucene.queries.function.valuesource.QueryValueSource

public class QueryValueSource
extends ValueSource

QueryValueSource returns the relevance score of the query


Constructor Summary
QueryValueSource(Query q, float defVal)
           
 
Method Summary
 void createWeight(Map context, IndexSearcher searcher)
          Implementations should propagate createWeight to sub-ValueSources which can optionally store weight info in the context.
 String description()
          description of field, used in explain()
 boolean equals(Object o)
           
 float getDefaultValue()
           
 Query getQuery()
           
 FunctionValues getValues(Map fcontext, AtomicReaderContext readerContext)
          Gets the values for this reader and the context that was previously passed to createWeight()
 int hashCode()
           
 
Methods inherited from class org.apache.lucene.queries.function.ValueSource
getSortField, newContext, toString
 
Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait
 

Constructor Detail

QueryValueSource

public QueryValueSource(Query q,
                        float defVal)
Method Detail

getQuery

public Query getQuery()

getDefaultValue

public float getDefaultValue()

description

public String description()
Description copied from class: ValueSource
description of field, used in explain()

Specified by:
description in class ValueSource

getValues

public FunctionValues getValues(Map fcontext,
                                AtomicReaderContext readerContext)
                         throws IOException
Description copied from class: ValueSource
Gets the values for this reader and the context that was previously passed to createWeight()

Specified by:
getValues in class ValueSource
Throws:
IOException

hashCode

public int hashCode()
Specified by:
hashCode in class ValueSource

equals

public boolean equals(Object o)
Specified by:
equals in class ValueSource

createWeight

public void createWeight(Map context,
                         IndexSearcher searcher)
                  throws IOException
Description copied from class: ValueSource
Implementations should propagate createWeight to sub-ValueSources which can optionally store weight info in the context. The context object will be passed to getValues() where this info can be retrieved.

Overrides:
createWeight in class ValueSource
Throws:
IOException


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