Resource for Creating Java Based Server

Apache MINA: http://mina.apache.org
JBoss Netty: http://jboss.org/netty/
STOMP: http://stomp.codehaus.org/

MX4J Step by Step: 2. Using mx4j

C:\sources\temp\MBeanTest01>java -cp \
lib\mx4j.jar;lib\mx4j-impl.jar;lib\mx4j-jmx.jar;lib\mx4j-rimpl.jar;dist\MBeanTest01.jar \
-Djavax.management.builder.initial=mx4j.server.MX4JMBeanServerBuilder \
com.example.mbeans.HelloMain

MX4J Step by Step: 1. A Simple MBean

http://java.sun.com/j2se/1.5.0/docs/guide/jmx/tutorial/essential.html

Notes:

You'd better use ObjectName.getInstance(String) instead of new ObjectName(String) for efficiency reason.

Import Project into Subversion Using NetBeans IDE

http://www.netbeans.org/kb/docs/ide/subversion.html#synchronizing

Here is some complementary:

1. on the server side:

svn mkdir ${repo-root}/<your-project-directory>/<your-project-directory>

2. on the client side:

svn://<host>/<repo-root>/<your-project-directory>/<your-project-directory>

If you don't create at lease one level of subdirectory and import the project under that subdirectory, you will encounter such an Error Message on the client side:

Trying to use the Subversion plugin with svn+ssh, I get the following: org.tigris.subversion.javahl.ClientException: Trying to use an unsupported feature Server d

Create an All-in-One Document Page of Javadoc

Today I was asked to print out all information of a Java project. I gave a solution based on Javadoc. However, Javadoc generates many HTML files for packages and classes, one for each generally. I came up with an idea to re-organise all the files together.

Therefore, I made a PERL program to do the job automatically. I found Javadoc has very good documentation templates, all essential information comes between

<!-- ========= END OF TOP NAVBAR ========= -->

and

<!-- ======= START OF BOTTOM NAVBAR ====== -->

This template helps me a lot. The work ended up with a 200 lines of PERL.

Actually, I could refine the document a little bit. But the current solution is good enough I think.

JavaDB/Derby: Worthy to Have a Try!

Originally, I was looking for an embedded Java database. JavaDB could work in an embedded style, but with 2M limitation. That's terrible. However, since I can control JavaDB server within my Java application, I run the server with a random server port, then connect to it within the same program. Now, my database looks like an embedded one but with no limitation on size. Additionally, JavaDB is much more faster than SQLite3.

Perl: number <-> char

$num = ord($ch);

$ch = chr($num);

interesting!