org.nustaq.kontraktor

Interface Callback<T>

All Superinterfaces:

Serializable

All Known Subinterfaces:

Future<T>

All Known Implementing Classes:

CallbackWrapper, HttpRemotedCB, Promise

public interface Callback<T>
extends Serializable

Typically used to receive results from outside the actor. The underlying mechanics scans method arguments and schedules calls on the call back into the calling actors thread. Note that the callback invocation is added as a message to the end of the calling actor. e.g. actor.method( arg, new Callbacl() { public void receive(T result, Object error ) { ..runs in caller thread.. } }

Field Summary

Fields

Modifier and Type	Field and Description
static String	CONT use value as error to indicate more messages are to come (else remoting will close channel).
static String	FIN use this value to signal no more messages.
static String	FINSILENT use value to signal no more messages.

Method Summary

Modifier and Type	Method and Description
void	receive(T result, Object error)

Field Detail

FINSILENT

static final String FINSILENT

use value to signal no more messages. THE RECEIVER CALLBACK WILL NOT SEE THIS MESSAGE.

See Also:

Constant Field Values

CONT

static final String CONT

use value as error to indicate more messages are to come (else remoting will close channel).

See Also:

Constant Field Values

FIN

static final String FIN

use this value to signal no more messages. The receiver callback will receive the message. Note that any value except CONT will also close the callback channel. So this is informal.

See Also:

Constant Field Values

Method Detail

receive

void receive(T result,
             Object error)