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| <p>Support classes that allows an object |
| to expose listener <em>methods</em> instead of listener <em>properties</em>. |
| |
| <p> |
| Normally, a listener property must be an object that implement |
| {@link org.apache.tapestry.IActionListener}. This can be cumbersome, in practice, as it |
| typically involves creating an anonymous inner class. |
| |
| <p> |
| Using this mechanism, classes can instead implement listener <em>methods</em>. |
| A listener method takes the form: |
| |
| <pre> |
| public void <em>method-name</em>({@link org.apache.tapestry.IRequestCycle} cycle) |
| throws {@link org.apache.tapestry.ApplicationRuntimeException}</code> |
| </pre> |
| |
| <p>The <code>throws</code> clause is optional, but may not throw any |
| additional exceptions. |
| |
| <p>Tapestry will create an appropriate listener object that will invoke the |
| corresponding method. |
| |
| <p>The methods can be accessed using the property path "<code>listeners.<em>method-name</em></code>" |
| |
| @see org.apache.tapestry.listener.ListenerMap |
| @see org.apache.tapestry.AbstractComponent#getListeners() |
| @see org.apache.tapestry.engine.AbstractEngine#getListeners() |
| @since 1.0.2 |
| |
| @author Howard Lewis Ship <a href="mailto:hlship@apache.org">hlship@apache.org</a> |
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