org.openfast.template.operator
Class CopyOperatorCodec

java.lang.Object
  org.openfast.template.operator.OperatorCodec
      org.openfast.template.operator.OptionallyPresentOperatorCodec
          org.openfast.template.operator.CopyOperatorCodec

All Implemented Interfaces:

java.io.Serializable

public class CopyOperatorCodec
extends OptionallyPresentOperatorCodec

See Also:

Serialized Form

Field Summary

Fields inherited from class org.openfast.template.operator.OperatorCodec

CONSTANT_ALL, COPY_ALL, DEFAULT_ALL, DELTA_DECIMAL, DELTA_INTEGER, DELTA_STRING, INCREMENT_INTEGER, NONE_ALL, TAIL

Constructor Summary

protected

CopyOperatorCodec()

Method Summary

ScalarValue	decodeValue(ScalarValue newValue, ScalarValue priorValue, Scalar field)
boolean	equals(java.lang.Object obj)
protected ScalarValue	getEmptyValue(ScalarValue priorValue)
protected ScalarValue	getInitialValue(Scalar field) Get the initial value of the passed Scalar object as long as the object is defined
protected ScalarValue	getValueToEncode(ScalarValue value, ScalarValue priorValue, ScalarValue defaultValue) Determine which values to encode from the passed ScalarValue objects

Methods inherited from class org.openfast.template.operator.OptionallyPresentOperatorCodec

decodeEmptyValue, getValueToEncode

Methods inherited from class org.openfast.template.operator.OperatorCodec

canEncode, getCodec, getOperator, getValueToEncode, isPresenceMapBitSet, shouldDecodeType, toString, usesPresenceMapBit

Methods inherited from class java.lang.Object

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

Constructor Detail

CopyOperatorCodec

protected CopyOperatorCodec()

Method Detail

getValueToEncode

protected ScalarValue getValueToEncode(ScalarValue value,
                                       ScalarValue priorValue,
                                       ScalarValue defaultValue)

Determine which values to encode from the passed ScalarValue objects

Specified by:

getValueToEncode in class OptionallyPresentOperatorCodec

Parameters:

value - The ScalarValue object to be encoded

priorValue - The priorValue object to be encoded

defaultValue - The defaultValue object to be encoded

Returns:

Returns null if the priorValue is undefined and if the ScalarValue object equals the defaultValue object or priorValue object, otherwise returns the ScalarValue object

getInitialValue

protected ScalarValue getInitialValue(Scalar field)

Get the initial value of the passed Scalar object as long as the object is defined

Specified by:

getInitialValue in class OptionallyPresentOperatorCodec

Parameters:

field - The Scalar object that the initial value is trying to return

Returns:

Returns the default value of the passed Scalar object if the object is defined, otherwise returns null

getEmptyValue

protected ScalarValue getEmptyValue(ScalarValue priorValue)

Specified by:

getEmptyValue in class OptionallyPresentOperatorCodec

Returns:

Returns the variable priorValue

decodeValue

public ScalarValue decodeValue(ScalarValue newValue,
                               ScalarValue priorValue,
                               Scalar field)

Specified by:

decodeValue in class OperatorCodec

Returns:

newValue

equals

public boolean equals(java.lang.Object obj)

Overrides:

equals in class OperatorCodec