dsto.dfc.reflection
Class Delegate

java.lang.Object
  dsto.dfc.reflection.Delegate

All Implemented Interfaces:

IDelegate, Runnable

public class Delegate
extends Object
implements IDelegate, Runnable

A delegate to a method in a class instance. Supports semi-lambda-like ability to pre-specify some arguments at creation for appending to the set called with invoke().

Author:

Matthew Phillips

Field Summary

Fields inherited from interface dsto.dfc.reflection.IDelegate

EMPTY_ARGS

Constructor Summary

Delegate(Object target, String methodName)

Delegate(Object target, String methodName, Class... argTypes)
Create a delegate by giving a name and an argument type list.

Delegate(Object target, String methodName, Class[] argTypes, Object[] args)
Create an instance, fully specifying method and argument list.

Delegate(Object target, String methodName, Object... args)

Method Summary

void	invoke(Object... args) Call the method pointed to by the delegate with the default parameter set.
void	run()
Object	target()
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

Delegate

public Delegate(Object target,
                String methodName)
         throws IllegalArgumentException

Throws:

IllegalArgumentException

Delegate

public Delegate(Object target,
                String methodName,
                Object... args)
         throws IllegalArgumentException

Throws:

IllegalArgumentException

Delegate

public Delegate(Object target,
                String methodName,
                Class... argTypes)
         throws IllegalArgumentException

Create a delegate by giving a name and an argument type list.

Parameters:

target - The target object.

methodName - The name of the method to call.

argTypes - The argument types of the method.

Throws:

IllegalArgumentException

Delegate

public Delegate(Object target,
                String methodName,
                Class[] argTypes,
                Object[] args)
         throws IllegalArgumentException

Create an instance, fully specifying method and argument list.

Parameters:

target - The target object.

methodName - The name of the method to call.

argTypes - The argument types of the method.

args - Any arguments to pre-specify.

Throws:

IllegalArgumentException

Method Detail

toString

public String toString()

Overrides:

toString in class Object

target

public Object target()

run

public void run()

Specified by:

run in interface Runnable

invoke

public void invoke(Object... args)
            throws InvokeException

Call the method pointed to by the delegate with the default parameter set.

Specified by:

invoke in interface IDelegate

Parameters:

args - The arguments.

Throws:

InvokeException - if a checked exception occurs.