org.dmd.util

Class Callback

java.lang.Object

org.dmd.util.Callback

public class Callback
extends Object

This class provides a convenient way to manage and invoke callbacks on objects.

Constructor Summary

Constructors

Constructor and Description
Callback(int argCount) Creates a new callback instance.

Method Summary

Modifier and Type	Method and Description
void	addParm(Class<?> c) You must call this function once for each type of parameter in the argument vector of the callback method.
void	addParm(String name) You must call this function once for each type of parameter in the argument vector of the callback method.
int	getArgsCount()
String	getMethodName()
void	initialize(Object cbobj, String cbfun) Initializes the callback.
void	invoke() This function should be called by the entity (or entities) that are performing a unit of work.
void	setArg(int argNum, Object o) When you're ready to invoke the callback, call this function to set each of the arguments that you're going to send.

Methods inherited from class java.lang.Object

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

Constructor Detail

Callback

public Callback(int argCount)

Creates a new callback instance.

Parameters:

argCount - The number of arguments to be sent to the callback method.

Method Detail

getMethodName

public String getMethodName()

Returns:

the method name

addParm

public void addParm(String name)
             throws ResultException

You must call this function once for each type of parameter in the argument vector of the callback method.

Parameters:

name - The fully qualified name of the class e.g. com.dmc.common.rrf.RrfResponse

Throws:

ResultException

addParm

public void addParm(Class<?> c)

You must call this function once for each type of parameter in the argument vector of the callback method.

Parameters:

c - The Class of the next argument.

initialize

public void initialize(Object cbobj,
                       String cbfun)
                throws ResultException

Initializes the callback.

Parameters:

cbobj - The object to be called.

cbfun - The callback function.

Throws:

ResultException

setArg

public void setArg(int argNum,
                   Object o)

When you're ready to invoke the callback, call this function to set each of the arguments that you're going to send.

getArgsCount

public int getArgsCount()

Returns:

The number of arguments for the callback.

invoke

public void invoke()
            throws ResultException

This function should be called by the entity (or entities) that are performing a unit of work.

Throws:

ResultException