Logging with log4J isDebugEnabled

Alot of times I have seen the questions popping up whether to use isDebugEnabled property or not. Arguably most of the times or rather always about performance. Some of the stuff that I feel important about using it follows.

Calling wsadmin scripts from ant

You can simply add the following to a target. For the following wsadmin should be in your PATH env. < exec dir="." executable="wsadmin.bat" logError="true" failonerror="true" output="wsconfig.out" > < arg line="-lang jython -f ../../createQFactory.py"/ > < /exec > All output will be logged to wsconfig.out

Generate XML – DBMS_XMLGEN

On my way to my solution store just found this nice to use, old and easy feature. Possibilities endless, usage typically very easy. I used the following to generate XML from sqlplus: select dbms_xmlgen.getxml(‘select * from user’) from dual; Output: < ROWSET > < ROW > < TNAME >Employee< / TNAME > < TABTYPE > […]

Doing the Locale – Danmark

The following illustrates how to get the Number format working with a danish locale. import java.text.NumberFormat;import java.util.Currency;import java.util.Locale;  public class TestLocale {  public static void main(String args[]){ // Create a Locale for Danmark Locale DANMARK = new Locale("da","DK");  // get the currency instance for this locale. Currency krone = Currency.getInstance(DANMARK);  // Get a Number format for […]

How to read a file from the JAR?

Someone just asked me this question today. And I thought might as well put it down for info. public TestReadFileFromJar() throws FileNotFoundException, IOException { InputStream is = getClass().getResource("txtData/states.properties"); read(is);} In the case above txtData is placed in the jar on the root. Remmember to add the path with the /

Command

By using the command pattern you are seperating the operation from the invoking object. And just because of that it becomes easier to change the command without chagning the caller/s. This means that you could use Command pattern when you might have the following situation You want to parameterize objects to perform an action You […]

Implementing the adapter

Typically when implementing an interface you would have to implement all the methods that exist in that interface. A very good example is the MouseListener in the java Swing. When you need to implement more then one method where as typically you might be catching only one of them. Saying that you would also find […]

wasprofile -create -delete

Sometimes you require to do things silently, without any questions asked and “Just Do It” attitude is required. I often find my self with this problem. If you want to delete or create a Websphere profile from your command line try the following. (I have tried on RSA only) # deleteing a profile wasprofile -delete […]