Generating java proxy class in Eclipse

Question

Is there a way in Eclipse to generate a proxy class (as in proxy pattern, not a remote call)? Something along the lines of this

public class FooBar{
    public int getBiz(){
        return 1234;
    } 
}

generates

public class FooBarProxy{
    protected FooBar foobar;
    public FooBarProxy(FooBar f) {...}
    public int getBiz(){
        return foobar.getBiz()
    } 
}

James Scriven · Accepted Answer · 2011-07-07 23:40:24Z

14

Create the proxy class yourself, and add the FooBar instance variable. Select the variable, right click-->source-->generate delegate methods

answered Jul 7, 2011 at 23:40

James Scriven

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1 Comment

fiffy Over a year ago

This is extremely useful when creating a decorator to change the behaviour of a specific method.

home · Accepted Answer · 2011-07-07 22:46:14Z

2

Why not use java's built in dynamic proxy. It generates a proxy at runtime:

implement your proxy logic by implementing java.lang.reflect.InvocationHandler
create a dynamic proxy; see http://download.oracle.com/javase/6/docs/api/java/lang/reflect/Proxy.html (example included)

answered Jul 7, 2011 at 22:46

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1 Comment

inger Over a year ago

It's interesting, but seems different usecase - mainly for interception/reflection magic.. For the plan old proxy pattern in Java, it's way messier than typing things out (also for debugging), IMHO. BTW, similar constructs look more acceptable in other languages (eg Forwardable in Ruby ruby-doc.org/stdlib-2.0/libdoc/forwardable/rdoc/…)

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