Changes between Version 1 and Version 2 of WikiStart

Timestamp:

01/29/2008 09:31:46 PM (18 years ago)

Author:

dsowen

Comment:

Copied from original page.

WikiStart

@@ -1 @@
-= Welcome to Trac 0.10.3.1 =
+= accesslib =
 
-Trac is a '''minimalistic''' approach to '''web-based''' management of
-'''software projects'''. Its goal is to simplify effective tracking and handling of software issues, enhancements and overall progress.
-
-All aspects of Trac have been designed with the single goal to 
-'''help developers write great software''' while '''staying out of the way'''
-and imposing as little as possible on a team's established process and
-culture.
-
-As all Wiki pages, this page is editable, this means that you can
-modify the contents of this page simply by using your
-web-browser. Simply click on the "Edit this page" link at the bottom
-of the page. WikiFormatting will give you a detailed description of
-available Wiki formatting commands.
-
-"[wiki:TracAdmin trac-admin] ''yourenvdir'' initenv" created
-a new Trac environment, containing a default set of wiki pages and some sample
-data. This newly created environment also contains 
-[wiki:TracGuide documentation] to help you get started with your project.
-
-You can use [wiki:TracAdmin trac-admin] to configure
-[http://trac.edgewall.org/ Trac] to better fit your project, especially in
-regard to ''components'', ''versions'' and ''milestones''. 
+ 1. Download
+ 2. Quick introduction
 
 
-TracGuide is a good place to start.
 
-Enjoy! [[BR]]
-''The Trac Team''
+== Download ==
 
-== Starting Points ==
+|| Version          || Formats                                                                    ||
+|| 2005-10-04T22:55 || [http://www.fugue88.ws/projects/accesslib/accesslib-20051004T2255.zip zip] ||
 
- * TracGuide --  Built-in Documentation
- * [http://trac.edgewall.org/ The Trac project] -- Trac Open Source Project
- * [http://trac.edgewall.org/wiki/TracFaq Trac FAQ] -- Frequently Asked Questions
- * TracSupport --  Trac Support
 
-For a complete list of local wiki pages, see TitleIndex.
+
+== Quick introduction ==
+
+In Java, variables refer to instances of objects.  There's no way to refer to the reference of a variable, in order to indirectly change to what object it refers.  ''accesslib'' provides an abstract mechanism for manipulating references (as opposed to manipulating objects).
+
+A quick example:
+
+{{{
+class Example {
+
+        int i;
+
+        void manipulate(Accessor a)
+        {
+                if(a.getType() == String.class) {
+                        a.setValue("Hello, world!");
+                } else if(a.getType() == Integer.class) {
+                        a.setValue(new Integer(13));
+                }
+        }
+
+        void foobar()
+        {
+                HashMap map = new HashMap();
+                Accessor a = new MapAccessor(map, "my key", String.class);
+                manipulate(a);
+
+                // Prints "Hello, world!".
+                System.out.println(map.get("my key"));
+
+                i = 0;
+                a = new IAccessor();
+                manipulate(a);
+
+                // Prints "13".
+                System.out.println(i);
+        }
+
+        class IAccessor implements Accessor {
+                void Class getType() { return Integer.class; }
+                void clearValue() { i = 0; }
+                Object getValue() { return Integer.valueOf(i); }
+                void setValue(Object value) { i = ((Integer)value).intValue(); }
+        }
+}
+}}}