Sachin Dangi

In the exam objectives it is mentioned that these type of questions will not be asked. Exam Objectives

Identify all Java programming language keywords. Note: There will not be any questions regarding esoteric distinctions between keywords and manifest constants.

hi,
pls try after setting the path as given below.
path=c:\bea\jdk141_05\bin;%path%;

it is quite possible that there might be another java executable present in %path%.

Sachin

UnsupportedClassVersionError error is thrown when you use system classes which are different from the JDK version. For eg. you may have different installations of JDK on your machine and you may be using JAVA command from one JDK and rt.jar which is included in the classpath from another version.
pls make sure that you are using rt.jar from jdk 141_05

try http://e-docs.bea.com/platform/docs81/index.html

Lasse,
was not aware of the naming policy. thanks for bringing it to my notice.

Sachin.

Javed,
pls put the JDBC driver for sybase database in classpath.
usually it is jconn2.jar. You can set the CLASSPATH env variable in startWeblogic.cmd

Sachin

Trupti,

You have to specify the JNDI name of the Queue to which the MDB should listen for "destination-jndi-name" element.

eg.<message-driven-descriptor> <pool> <max-beans-in-free-pool>5</max-beans-in-free-pool> <initial-beans-in-free-pool>1</initial-beans-in-free-pool> </pool> <destination-jndi-name>TestQueue</destination-jndi-name> <connection-factory-jndi-name>TestJMSConFactory</connection-factory-jndi-name> </message-driven-descriptor>

Sachin

Go to your domain directory and execute setEnv.cmd from command line prompt.

And then execute your appc command as given below. "setEnv.cmd" will put all the common jars in classpath.

java weblogic.appc myApplic

Rakesh,
i have couple of suggestions.

1. You can obtain the IP address of the server at runtime and enable/disable features accordingly.

2. You can use properties file. keep a copy of this property file on each server [assuming each managed server is running on different solaris server].

sachin
[ September 09, 2004: Message edited by: sachin ]

Venkat,
in one of the projects we had used IBM MQSeries JMS server along with Weblogic. The MDB deployed on weblogic server will listen to messages posted to queues on MQSeries server. In this case even when the weblogic goes down the messages can be posted to MQ Queues and once the WLS server comes up it will obtain the reference to MQ Queues and start consuming messages lying in the queues.

sachin

You can create custom class loader hierarchies in wls8.1

However while deciding any approach please keep in mind that if the same class is loaded by 2 class loaders then you may get class cast exception when object created by one class loader is assigned to reference of the same class loaded by another class loader.
[ September 02, 2004: Message edited by: sachin ]

BEA 8.1 Certified Developer, BEA 8.1 Certified Administrator, and BEA 8.1 Certified Architect.

Bea certification home page

you can use weblogic builder which comes with wls8.1.

you can specify different transaction attributes for different methods of same ejb in ejb-jar.xml. given below is one eg.

<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE ejb-jar PUBLIC "-//Sun Microsystems, Inc.//DTD Enterprise JavaBeans 2.0//EN" "http://java.sun.com/dtd/ejb-jar_2_0.dtd"> <ejb-jar> <enterprise-beans> <session> <display-name>TestEJB</display-name> <ejb-name>TestEJB</ejb-name> <local-home>com.test.ejb.TestEJBHome</local-home> <local>com.test.ejb.TestEJBHome</local> <ejb-class>com.test.ejb.TestEJB</ejb-class> <session-type>Stateless</session-type> <transaction-type>Container</transaction-type> </session> </enterprise-beans> <assembly-descriptor> <container-transaction> <method> <ejb-name>TestEJB</ejb-name> <method-name>getOrder</method-name> </method> <trans-attribute>Supports</trans-attribute> </container-transaction> <container-transaction> <method> <ejb-name>TestEJB</ejb-name> <method-name>storeOrder</method-name> </method> <trans-attribute>Required</trans-attribute> </container-transaction> </assembly-descriptor> </ejb-jar>

you can try eclips IDE also instead of JBuilder. It is open source and it has some great features. Also there are lots of free plugins available for same.
Eclipse