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

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

public class LongFieldSource
extends FieldCacheSource

Obtains float field values from the FieldCache using getFloats() and makes those values available as other numeric types, casting as needed.


Field Summary
protected  FieldCache.LongParser parser
           
 
Fields inherited from class org.apache.lucene.queries.function.valuesource.FieldCacheSource
cache, field
 
Constructor Summary
LongFieldSource(String field)
           
LongFieldSource(String field, FieldCache.LongParser parser)
           
 
Method Summary
 String description()
          description of field, used in explain()
 boolean equals(Object o)
           
 long externalToLong(String extVal)
           
 FunctionValues getValues(Map context, AtomicReaderContext readerContext)
          Gets the values for this reader and the context that was previously passed to createWeight()
 int hashCode()
           
 Object longToObject(long val)
           
 String longToString(long val)
           
protected  MutableValueLong newMutableValueLong()
           
 
Methods inherited from class org.apache.lucene.queries.function.valuesource.FieldCacheSource
getField, getFieldCache
 
Methods inherited from class org.apache.lucene.queries.function.ValueSource
createWeight, getSortField, newContext, toString
 
Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait
 

Field Detail

parser

protected final FieldCache.LongParser parser
Constructor Detail

LongFieldSource

public LongFieldSource(String field)

LongFieldSource

public LongFieldSource(String field,
                       FieldCache.LongParser parser)
Method Detail

description

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

Overrides:
description in class FieldCacheSource

externalToLong

public long externalToLong(String extVal)

longToObject

public Object longToObject(long val)

longToString

public String longToString(long val)

getValues

public FunctionValues getValues(Map context,
                                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

newMutableValueLong

protected MutableValueLong newMutableValueLong()

equals

public boolean equals(Object o)
Overrides:
equals in class FieldCacheSource

hashCode

public int hashCode()
Overrides:
hashCode in class FieldCacheSource


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