ch.ethz.iks.r_osgi.messages
Class MethodResultMessage

java.lang.Object
  ch.ethz.iks.r_osgi.messages.RemoteOSGiMessage
      ch.ethz.iks.r_osgi.messages.MethodResultMessage

public final class MethodResultMessage
extends RemoteOSGiMessage

MethodResultMessage is used to return the result of a method invocation to the invoking remote peer.

Since:

0.1

Author:

Jan S. Rellermeyer, ETH Zurich

Field Summary

Fields inherited from class ch.ethz.iks.r_osgi.messages.RemoteOSGiMessage

DELIVER_BUNDLE, DELIVER_SERVICE, FETCH_SERVICE, INVOKE_METHOD, LEASE, LEASE_UPDATE, METHOD_RESULT, REMOTE_EVENT, STREAM_REQUEST, STREAM_RESULT, TIME_OFFSET, xid

Constructor Summary

MethodResultMessage()
creates a new MethodResultMessage from InvokeMethodMessage and set the exception.

Method Summary

boolean	causedException() did the method invocation cause an exception ?
Throwable	getException() get the exception.
Object	getResult() get the result object.
void	setException(Throwable t) set the exception.
void	setResult(Object result) set the result.
String	toString() String representation for debug outputs.
void	writeBody(ObjectOutputStream out) write the body of the message to a stream.

Methods inherited from class ch.ethz.iks.r_osgi.messages.RemoteOSGiMessage

getFuncID, getXID, parse, readBytes, readStringArray, send, setXID, writeBytes, writeStringArray

Methods inherited from class java.lang.Object

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

Constructor Detail

MethodResultMessage

public MethodResultMessage()

creates a new MethodResultMessage from InvokeMethodMessage and set the exception.

Method Detail

writeBody

public void writeBody(ObjectOutputStream out)
               throws IOException

write the body of the message to a stream.

Specified by:

writeBody in class RemoteOSGiMessage

Parameters:

out - the ObjectOutputStream.

Throws:

IOException - in case of IO failures.

See Also:

ch.ethz.iks.r_osgi.messages.RemoteOSGiMessage#getBody()

causedException

public boolean causedException()

did the method invocation cause an exception ?

Returns:

true, if an exception has been thrown on the remote side. In this case, the exception can be retrieved through the getException method.

getResult

public Object getResult()

get the result object.

Returns:

the return value of the invoked message.

setResult

public void setResult(Object result)

set the result.

Parameters:

result - the result.

getException

public Throwable getException()

get the exception.

Returns:

the exception or null if non was thrown.

setException

public void setException(Throwable t)

set the exception.

Parameters:

t - the exception.

toString

public String toString()

String representation for debug outputs.

Overrides:

toString in class Object

Returns:

a string representation.

See Also:

Object.toString()