rwaldhoff 2003/03/12 17:00:44
Modified: functor/xdocs index.xml
Log:
some doc enhancements
Revision Changes Path
1.5 +26 -1 jakarta-commons-sandbox/functor/xdocs/index.xml
Index: index.xml
===================================================================
RCS file: /home/cvs/jakarta-commons-sandbox/functor/xdocs/index.xml,v
retrieving revision 1.4
retrieving revision 1.5
diff -u -r1.4 -r1.5
--- index.xml 5 Mar 2003 17:15:50 -0000 1.4
+++ index.xml 13 Mar 2003 01:00:44 -0000 1.5
@@ -10,7 +10,11 @@
<section name="Functor: Functions as Objects">
<p>
A <em>functor</em> is a function that can be manipulated
- as an object. Functors are a very old and very common software design
+ as an object.
+ </p>
+<!--
+ <p>
+ Functors are a very old and very common software design
concept, and appear in many languages in many forms. For example,
functors appear in:
</p>
@@ -26,10 +30,31 @@
<li>Ruby as blocks</li>
<li>etc.</li>
</ul>
+-->
<p>
In Java, functors are typically implemented as interfaces defined
by a single, generic member function, and that is the approach taken
here.
+ </p>
+ <p>
+ Functors support and encourage a number of powerful programming
+ techniques including:
+ </p>
+ <ul>
+ <li>programming in a functional style</li>
+ <li>higher order functions</li>
+ <li>internal iterators</li>
+ <li>reuse and specialization through composition rather than inheritance
and overloading</li>
+ <li>generic "callback" or "extension point" APIs</li>
+ <li>generic "filters" or predicate APIs</li>
+ <li>
+ many "behavioral" design patterns, such as
+ Visitor, Strategy, Chain of Responsibility, etc.
+ </li>
+ </ul>
+ <p>
+ See the <a href="examples.html">examples</a> for more information on some
of
+ these techniques.
</p>
</section>
<section name="Overview">
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