net.sf.farrago.fennel.tuple
Class FennelAttributeAccessor.FennelLongAccessor

java.lang.Object
  net.sf.farrago.fennel.tuple.FennelAttributeAccessor
      net.sf.farrago.fennel.tuple.FennelAttributeAccessor.FennelLongAccessor

Enclosing class:

FennelAttributeAccessor

public static final class FennelAttributeAccessor.FennelLongAccessor
extends FennelAttributeAccessor

marshalls a numeric long (signed or unsigned)

Nested Class Summary

Nested classes/interfaces inherited from class net.sf.farrago.fennel.tuple.FennelAttributeAccessor

FennelAttributeAccessor.FennelBitAccessor, FennelAttributeAccessor.FennelByteAccessor, FennelAttributeAccessor.FennelFixedWidthAccessor, FennelAttributeAccessor.FennelIntAccessor, FennelAttributeAccessor.FennelLongAccessor, FennelAttributeAccessor.FennelShortAccessor, FennelAttributeAccessor.FennelVarWidthAccessor

Field Summary

Fields inherited from class net.sf.farrago.fennel.tuple.FennelAttributeAccessor

capacity, endIndirectOffset, fixedOffset, nullableBitMask, nullableBitOffset, nullBitNdx, valueBitMask, valueBitNdx, valueBitOffset

Constructor Summary

FennelAttributeAccessor.FennelLongAccessor()

Method Summary

void	marshalValueData(ByteBuffer pDestData, FennelTupleDatum value) Marshalls value data for the attribute.
void	unmarshalValue(FennelTupleAccessor tupleAccessor, FennelTupleDatum value) Unmarshalls the attribute's value into a tupledatum holder.

Methods inherited from class net.sf.farrago.fennel.tuple.FennelAttributeAccessor

computeBitAccessors, isPresent, setPresent

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

FennelAttributeAccessor.FennelLongAccessor

public FennelAttributeAccessor.FennelLongAccessor()

Method Detail

marshalValueData

public void marshalValueData(ByteBuffer pDestData,
                             FennelTupleDatum value)
                      throws NullPointerException

Description copied from class: FennelAttributeAccessor

Marshalls value data for the attribute. Only deals with the data bytes, not length and null indicators.

Specified by:

marshalValueData in class FennelAttributeAccessor

Parameters:

pDestData - the target address where the data should be marshalled

value - the value to be marshalled

Throws:

NullPointerException

unmarshalValue

public void unmarshalValue(FennelTupleAccessor tupleAccessor,
                           FennelTupleDatum value)

Description copied from class: FennelAttributeAccessor

Unmarshalls the attribute's value into a tupledatum holder. Unlike the C++ version, this *does* actually copy data.

Specified by:

unmarshalValue in class FennelAttributeAccessor

Parameters:

tupleAccessor - containing FennelTupleAccessor set up with the current tuple image to be accessed

value - receives the reference to the unmarshalled value