57 lines
1.3 KiB
Java
57 lines
1.3 KiB
Java
// typeinfo/SimpleProxyDemo.java
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// (c)2016 MindView LLC: see Copyright.txt
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// We make no guarantees that this code is fit for any purpose.
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// Visit http://mindviewinc.com/Books/OnJava/ for more book information.
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interface Interface {
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void doSomething();
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void somethingElse(String arg);
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}
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class RealObject implements Interface {
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@Override
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public void doSomething() {
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System.out.println("doSomething");
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}
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@Override
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public void somethingElse(String arg) {
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System.out.println("somethingElse " + arg);
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}
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}
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class SimpleProxy implements Interface {
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private Interface proxied;
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public SimpleProxy(Interface proxied) {
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this.proxied = proxied;
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}
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@Override
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public void doSomething() {
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System.out.println("SimpleProxy doSomething");
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proxied.doSomething();
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}
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@Override
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public void somethingElse(String arg) {
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System.out.println("SimpleProxy somethingElse " + arg);
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proxied.somethingElse(arg);
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}
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}
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class SimpleProxyDemo {
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public static void consumer(Interface iface) {
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iface.doSomething();
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iface.somethingElse("bonobo");
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}
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public static void main(String[] args) {
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consumer(new RealObject());
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consumer(new SimpleProxy(new RealObject()));
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}
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}
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/* Output:
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doSomething
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somethingElse bonobo
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SimpleProxy doSomething
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doSomething
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SimpleProxy somethingElse bonobo
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somethingElse bonobo
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*/
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