Debian apt management

This is the latest package update tool. Unlike netselect-apt, it doesn't use ICMP! which is often blocked now by firewall..

# s...location
# d...release type
# f...file to examin
# e...the number of host try
apt-spy -s nl -d unstable -f ls-lR.gz -e 10

Debian Keymap

Simple solution to change the keymap on Debian GNU/Linux.

loadkeys /usr/share/keymaps/i386/qwerty/jp106.kmap.gz
cp /usr/share/keymaps/i386/qwerty/jp106.kmap.gz /etc/console/boottime.kmap.gz

HibernateException

package org.hibernate;

import org.hibernate.exception.NestableRuntimeException;

/**
 * Any exception that occurs inside the persistence layer
 * or JDBC driver. SQLExceptions are always wrapped
 * by instances of JDBCException.
 *
 * @see JDBCException
 * @author Gavin King
 */

public class HibernateException extends NestableRuntimeException {

 public HibernateException(Throwable root) {
  super(root);
 }

 public HibernateException(String string, Throwable root) {
  super(string, root);
 }

 public HibernateException(String s) {
  super(s);
 }
}

Hibernate - Composite key

For a table with a composite key, you may map multiple properties of the class as identifier properties. The <composite-id>element accepts <key-property> property mappings and <key-many-to-one> mappings as child elements.

<composite-id>
        <key-property name="medicareNumber"/>
        <key-property name="dependent"/>
</composite-id>

Regex

Small sample to replace the regular expression..
Using Core API

String body = "\n";
String out;
Pattern pattern = Pattern.compile("class=\".*?\"");
Matcher matcher = pattern.matcher(body);
out = matcher.replaceAll("");
System.out.println(out);

Using Jakarta ORO

String body = "\n";
String out;
Perl5Util util = new Perl5Util();
out = util.substitute("s/ class=\".*?\"//g", body);
System.out.println(out);