org.eclipse.hyades.execution.invocation
Class ReturnData

java.lang.Object
  org.eclipse.hyades.execution.invocation.MarshalData
      org.eclipse.hyades.execution.invocation.ReturnData

public class ReturnData

extends MarshalData

ReturnData instances store data that is needed to marshal or unmarshal values that are to be returned as a result of a method invocation.

Field Summary

Fields inherited from class org.eclipse.hyades.execution.invocation.MarshalData

argTypes, call, targetId

Constructor Summary

ReturnData(java.lang.Integer targetId, java.lang.Class[] argTypes, java.lang.String call, java.lang.Object returnValue)

Method Summary

java.lang.Object	getReturnValue() Get the return value resulting from a method invocation.
boolean	isError() Indicates whether or not this instance wraps an exception that has been thrown.

Methods inherited from class org.eclipse.hyades.execution.invocation.MarshalData

getArgTypes, getCall, getTargetId, isForSameCallAs

Methods inherited from class java.lang.Object

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

Constructor Detail

ReturnData

public ReturnData(java.lang.Integer targetId,
                  java.lang.Class[] argTypes,
                  java.lang.String call,
                  java.lang.Object returnValue)

Parameters:

targetId - the unique id associated with the target object

argTypes - the list of types matching those declared as parameters in the signature of call

call - the method that is to be invoked

returnValue - the value returned from call. If this value is assignment compatible with Throwable, the ReturnData instance to be created represents an exception that has been thrown as a result of call having been invoked. If call returns a primitive type, returnValue should be a wrapper object of the appropriate type. If call does not return a value, returnValue can be null.

Method Detail

getReturnValue

public java.lang.Object getReturnValue()

Get the return value resulting from a method invocation.

Returns:

an Object if the method that was invoked is one that returns a value or if the invocation resulted in an exception being thrown, or null if the method does not return a value

isError

public boolean isError()

Indicates whether or not this instance wraps an exception that has been thrown.

Returns:

false if an exception was not thrown, true if the value wrapped by this instance is assignment compatible with Throwable