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| <title>Chapter 11. Other Changes in AspectJ 5</title><link rel="stylesheet" href="aspectj-docs.css" type="text/css"><meta name="generator" content="DocBook XSL Stylesheets V1.44"><link rel="home" href="index.html" title="The AspectJTM 5 Development Kit Developer's Notebook"><link rel="up" href="index.html" title="The AspectJTM 5 Development Kit Developer's Notebook"><link rel="previous" href="reflection.html" title="Chapter 10. New Reflection Interfaces"><link rel="next" href="declare-soft.html" title="Declare Soft"></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Chapter 11. Other Changes in AspectJ 5</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="reflection.html">Prev</a> </td><th width="60%" align="center"> </th><td width="20%" align="right"> <a accesskey="n" href="declare-soft.html">Next</a></td></tr></table><hr></div><div class="chapter"><div class="titlepage"><div><h2 class="title"><a name="miscellaneous"></a>Chapter 11. Other Changes in AspectJ 5</h2></div></div><div class="toc"><p><b>Table of Contents</b></p><dl><dt><a href="miscellaneous.html#pointcuts">Pointcuts</a></dt><dt><a href="declare-soft.html">Declare Soft</a></dt></dl></div><div class="sect1"><a name="pointcuts"></a><div class="titlepage"><div><h2 class="title" style="clear: both"><a name="pointcuts"></a>Pointcuts</h2></div></div><p> | |
| AspectJ 5 is more liberal than AspectJ 1.2.1 in accepting pointcut expressions | |
| that bind context variables in more than one location. For example, AspectJ | |
| 1.2.1 does not allow: | |
| </p><pre class="programlisting"> | |
| pointcut foo(Foo foo) : (execution(* *(..)) && this(foo) ) || | |
| (set(* *) && target(foo)); | |
| </pre><p> | |
| whereas this expression is permitted in AspectJ 5. Each context variable must | |
| be bound exactly once in each branch of a disjunction, and the disjunctive branches | |
| must be mutually exclusive. In the above example for instance, no join point | |
| can be both an execution join point and a set join point so the two branches | |
| are mutually exclusive. | |
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