org.objectweb.jac.core.dist
Class NonBlockingStubWrapper

java.lang.Object
  |
  +--org.objectweb.jac.core.Wrapper
        |
        +--org.objectweb.jac.core.dist.StubWrapper
              |
              +--org.objectweb.jac.core.dist.NonBlockingStubWrapper

All Implemented Interfaces:

Advice, ConstructorInterceptor, Interceptor, MethodInterceptor, Serializable

public class NonBlockingStubWrapper

extends StubWrapper

NonBlockingStubWrapper is a dynamic client stub for org.objectweb.jac. Every method called on an object wrapped by such a wrapper is forwarded to a remote reference. The call is non blocking. For blocking calls see StubWrapper. This a wrapper class. The invoke method wraps all the methods of a wrappee.

Author:

Lionel Seinturier

See Also:

StubWrapper, Serialized Form

Field Summary

protected int	firstFreeCell Index of the 1st free cell in results.
protected static int	nbMaxOfResults Maximum number of results stored.
protected Object[]	results Mailbox for results received from asynchonous calls.

Fields inherited from class org.objectweb.jac.core.dist.StubWrapper

remoteRef

Fields inherited from class org.objectweb.jac.core.Wrapper

ac, cr

Constructor Summary

NonBlockingStubWrapper(AspectComponent ac, RemoteRef remoteRef)
Construct a new dynamic stub.

NonBlockingStubWrapper(AspectComponent ac, String serverContainer)
A more user-friendly constructor.

Method Summary

Object	getResult(Integer index) Return the requested result.
Object	invoke(Interaction interaction) Forward a call to the remote reference.
void	setFirstFreeCell()

Methods inherited from class org.objectweb.jac.core.dist.StubWrapper

_invoke, construct, getRemoteRef, invoke

Methods inherited from class org.objectweb.jac.core.Wrapper

attr, attrdef, defines, getAspectComponent, getAspectComponentName, getExceptionHandlers, proceed, toString

Methods inherited from class java.lang.Object

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

Field Detail

nbMaxOfResults

protected static final int nbMaxOfResults

Maximum number of results stored. The idea is that if nbMaxOfResults consecutive calls have been made, the probability that the initial result is to be required is low.

See Also:

Constant Field Values

results

protected Object[] results

Mailbox for results received from asynchonous calls. The array is managed as a circular list.

firstFreeCell

protected int firstFreeCell

Index of the 1st free cell in results.

Constructor Detail

NonBlockingStubWrapper

public NonBlockingStubWrapper(AspectComponent ac,
                              RemoteRef remoteRef)

Construct a new dynamic stub.

Parameters:

remoteRef - the remote reference associated to the stub

NonBlockingStubWrapper

public NonBlockingStubWrapper(AspectComponent ac,
                              String serverContainer)

A more user-friendly constructor.

Parameters:

serverContainer - the name of the container where the server is deployed

Method Detail

invoke

public Object invoke(Interaction interaction)

Forward a call to the remote reference.

setFirstFreeCell

public void setFirstFreeCell()

getResult

public Object getResult(Integer index)

Return the requested result.

Parameters:

index - the result index

Returns:

the requested result