com.knowgate.scheduler
Class WorkerThreadCallback

java.lang.Object
  com.knowgate.scheduler.WorkerThreadCallback

public abstract class WorkerThreadCallback
extends java.lang.Object

Get information about what is happening inside each WorkerThread

This an abstract base class than must be inherited in order to provide the implementation for the call() method.

Field Summary

static int	WT_ATOM_CONSUME Thread consumed an Atom.
static int	WT_ATOM_GET Thread just got an Atom for its inmediate consumption.
static int	WT_ATOMCONSUMER_NOMORE AtomConsumer for thread found no more pending Atoms A reference to the AtomConsumer will be in the 5th parameter of call() method
static int	WT_EXCEPTION Thread throwed and Exception The throwed Exception will be in the 4th parameter of call() method
static int	WT_JOB_FINISH Thread finished a Job execution A reference to the finished Job will be in the 5th parameter of call() method
static int	WT_JOB_INSTANTIATE Thread instantiated a Job subclass A reference to the instantiated Job will be in the 5th parameter of call() method

Constructor Summary

WorkerThreadCallback(java.lang.String sCallbackName)

Method Summary

abstract void	call(java.lang.String sThreadId, int iOpCode, java.lang.String sMessage, java.lang.Exception oXcpt, java.lang.Object oParam) Provide information about thread execution milestones
java.lang.String	name()

Methods inherited from class java.lang.Object

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

Field Detail

WT_EXCEPTION

public static final int WT_EXCEPTION

Thread throwed and Exception

The throwed Exception will be in the 4th parameter of call() method

See Also:

Constant Field Values

WT_JOB_INSTANTIATE

public static final int WT_JOB_INSTANTIATE

Thread instantiated a Job subclass

A reference to the instantiated Job will be in the 5th parameter of call() method

See Also:

Constant Field Values

WT_JOB_FINISH

public static final int WT_JOB_FINISH

Thread finished a Job execution

A reference to the finished Job will be in the 5th parameter of call() method

See Also:

Constant Field Values

WT_ATOMCONSUMER_NOMORE

public static final int WT_ATOMCONSUMER_NOMORE

AtomConsumer for thread found no more pending Atoms

A reference to the AtomConsumer will be in the 5th parameter of call() method

See Also:

Constant Field Values

WT_ATOM_GET

public static final int WT_ATOM_GET

Thread just got an Atom for its inmediate consumption.

Called before Atom is consumed.

A reference to the Atom will be in the 5th parameter of call() method

See Also:

Constant Field Values

WT_ATOM_CONSUME

public static final int WT_ATOM_CONSUME

Thread consumed an Atom.

Called after Atom is consumed.

A reference to the Atom will be in the 5th parameter of call() method

See Also:

Constant Field Values

Constructor Detail

WorkerThreadCallback

public WorkerThreadCallback(java.lang.String sCallbackName)

Parameters:

sCallbackName - Each callback instance must have a unique name

Method Detail

name

public java.lang.String name()

Returns:

Callback instance name

call

public abstract void call(java.lang.String sThreadId,
                          int iOpCode,
                          java.lang.String sMessage,
                          java.lang.Exception oXcpt,
                          java.lang.Object oParam)

Provide information about thread execution milestones

Parameters:

sThreadId - String identifying the caller WorkerThread

iOpCode - Operation code (see static constants)

sMessage - Descriptive message

oXcpt - Exception thrown by WorkerThread.
This parameter is always null unless iOpCode is WT_EXCEPTION

oParam - Object related to operation.
Its class depends on the operation performed.