Package org.apache.lucene.queries.function.valuesource

Class LongFieldSource

java.lang.Object

org.apache.lucene.queries.function.ValueSource

org.apache.lucene.queries.function.valuesource.FieldCacheSource

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

public class LongFieldSource
extends FieldCacheSource

Obtains long field values from FieldCache.getLongs(org.apache.lucene.index.AtomicReader, java.lang.String, boolean) and makes those values available as other numeric types, casting as needed.

Constructor Summary

Constructors

Constructor	Description
LongFieldSource(java.lang.String field)
LongFieldSource(java.lang.String field, FieldCache.LongParser parser)

Method Summary

Modifier and Type	Method	Description
java.lang.String	description()	description of field, used in explain()
boolean	equals(java.lang.Object o)
long	externalToLong(java.lang.String extVal)
FunctionValues	getValues(java.util.Map context, AtomicReaderContext readerContext)	Gets the values for this reader and the context that was previously passed to createWeight()
int	hashCode()
java.lang.Object	longToObject(long val)
java.lang.String	longToString(long val)

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

getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

LongFieldSource

public LongFieldSource(java.lang.String field)

LongFieldSource

public LongFieldSource(java.lang.String field,
                       FieldCache.LongParser parser)

Method Detail

description

public java.lang.String description()

Description copied from class: ValueSource

description of field, used in explain()

Overrides:

description in class FieldCacheSource

externalToLong

public long externalToLong(java.lang.String extVal)

longToObject

public java.lang.Object longToObject(long val)

longToString

public java.lang.String longToString(long val)

getValues

public FunctionValues getValues(java.util.Map context,
                                AtomicReaderContext readerContext)
                         throws java.io.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:

java.io.IOException

equals

public boolean equals(java.lang.Object o)

Overrides:

equals in class FieldCacheSource

hashCode

public int hashCode()

Overrides:

hashCode in class FieldCacheSource