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Proxing methods that are called from within the proxy instance itself
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created by <a href="https://community.jboss.org/people/electrotype">Electro Type</a> in <i>Javassist</i> - <a href="https://community.jboss.org/message/817501#817501">View the full discussion</a>
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<div class="jive-rendered-content"><p>Hi, I'm new to Javassist. Thanks a lot to the developers of this project!</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>I'm pretty sure it's not the first time this question is asked, but I did a search and found nothing.</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>I'm proxying an abstract class. Something like this (I hope I'm not making any mistakes since this is not the exact code I use) :</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><pre class="jive-pre"><code class="jive-code jive-java">ProxyFactory factory = <font color="navy"><b>new</b></font> ProxyFactory();
factory.setSuperclass(MyAbstractClass.class);
factory.setFilter(<font color="navy"><b>new</b></font> MethodFilter()
<font color="navy">{</font>
    <font color="navy"><b>public</b></font> <font color="navy"><b>boolean</b></font> isHandled(Method method)
    <font color="navy">{</font>
        <font color="navy"><b>return</b></font> <font color="navy"><b>true</b></font>;
    <font color="navy">}</font>
<font color="navy">}</font>
 
MyAbstractClass myInstance = (IDictionary<?>) factory.create(<font color="navy"><b>new</b></font> Class<?>[0], <font color="navy"><b>new</b></font> Object[0], <font color="navy"><b>new</b></font> MyHandler());
 
</code></pre><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>MyAbstractClass is :</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><pre class="jive-pre"><code class="jive-code jive-java"><font color="navy"><b>public</b></font> <font color="navy"><b>abstract</b></font> <font color="navy"><b>class</b></font> MyAbstractClass
<font color="navy">{</font>
    <font color="navy"><b>public</b></font> String sayHello()
    <font color="navy">{</font>
        <font color="navy"><b>return</b></font> <font color="red">"Hello"</font>;
    <font color="navy">}</font>
 
    <font color="navy"><b>public</b></font> String sayHelloWord()
    <font color="navy">{</font>
        <font color="navy"><b>return</b></font> sayHello() + <font color="red">" World!"</font>;
    <font color="navy">}</font>
<font color="navy">}</font>
 
</code></pre><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>And MyHandler is Something like :</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><pre class="jive-pre"><code class="jive-code jive-java"><font color="navy"><b>public</b></font> <font color="navy"><b>class</b></font> MyHandler <font color="navy"><b>implements</b></font> MethodHandler
<font color="navy">{</font>
    <font color="navy"><b>public</b></font> Object invoke(Object self, Method thisMethod, Method proceed, Object[] args) <font color="navy"><b>throws</b></font> Throwable
    <font color="navy">{</font>
        System.out.println(<font color="red">"In invoke()!"</font>);
 
        [ + code to actually call thisMethod on the self object ]
    <font color="navy">}</font>
<font color="navy">}</font>
 
</code></pre><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>Now, If I call :</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><pre class="jive-pre"><code class="jive-code jive-java">myInstance.sayHelloWord();
</code></pre><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>The <em>invoke()</em> method will be called first, since I told Javassist to handle all methods. But - and this is my question - when <em>sayHello()</em> is called from say<em>HelloWord()</em>, <strong>it is called directly, without going through <em>invoke()</em> first!</strong></p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>Is there a way to make all methods, even when they are called from within the instance itself, being proxied and going through <em>invoke()</em>?</p></div>
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<p style="margin: 0;">Reply to this message by <a href="https://community.jboss.org/message/817501#817501">going to Community</a></p>
<p style="margin: 0;">Start a new discussion in Javassist at <a href="https://community.jboss.org/choose-container!input.jspa?contentType=1&containerType=14&container=2062">Community</a></p>
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