AppServer Section Index | Page 2
IBM WebSphere provides the GUI where the option is there to set wether the server wants a particular Servlets is to be invoked upon start up. This will updated the XML as follows: <servlet na...more
When using Websphere 3.5, VisualAge and Oracle to develop CMP EJB's I receive the following error: "Unable to insert data into a NOT NULL field". What am I doing wrong?
You need to modify the create method for the Entity bean to initialize ALL the not null fields. VAJ defaults to initializing the primary key but it doesn't initialize the NOT NULL fields, this w...more
Web Services can be thought of as a wrapper that can be used to allow EJB's to invoke external services and also to allow external services and clients to invoke the EJB's. A major strength of Web...more
ECperf is used for benchmarking J2EE application servers. It consists of a Specification and a benchmarking kit which is designed specifically to test and measure performance and scalability of J...more
WebSphere Application Server 4.0 supports making the following artifacts into Web services: Java beans Enterprise Java Beans BSF supported scripts (BSF is IBM's Bean Scripting Framework) DB2 ...more
A list of valid parameter names for the Session Descriptor in webLogic 6.1 are as follows: CacheSize ConsoleMainAttribute CookieComment CookieDomain CookieMaxAgeSecs CookieName CookiePath Cookie...more
Following is an example for WebLogic 6.x that protects all URLs that begin with /secure: WEB-INF/web.xml - Define a constraint and a role <!DOCTYPE web-app PUBLIC "-//Sun Microsystems, Inc....more
You can think of a Multipool as a "pool of pools". WebLogic 6.x allows you to create a Multipool and have it mapped to a DataSource. Multipools support two mutually exlusive algorithms: Load Bal...more
Differences in obtaining connection pools I'm trying to understand the difference between two ways to get a connection from a Weblogic 6.0 connection pool.
Differences in obtaining connection pools I'm trying to understand the difference between two ways to get a connection from a Weblogic 6.0 connection pool. What are the two ways and is either meth...more
I want to set some user defined properties to be used in my application running in WebLogic appserver.
I want to set some user defined properties to be used in my application running in WebLogic appserver. In WebLogic 5.1, I was able to do this by setting them as System properties inside the weblogi...more
Is there any way to tell weblogic to extend CustomJSPClass.java rather than the standard JSPBase.java?
For WebLogic 6.0/6.1 you need to create a weblogic.xml descriptor for your web application and add in the approrpiate tags. References: weblogic.xml jsp compiler syntax more
ATG has some self study material you can buy from them. If you don't want to buy, there are several places online with some material... One of their trainers put some material online at http://peo...more
Stateful Session Beans and Fail Over How are stateful session beans handled in a failover situation -- is this vendor dependent?
There is no standard for failovers.Each AppServer implements it differently. I made a comparison between, Weblogic (WL), Websphere(WAS) and Borland App server(BAS). I found that BAS had the best ...more
There are code samples in Sun's JNDI tutorial that explain how to perform LDAP authentication through JNDI. My recommendation would be to create a session bean that acquires an LDAP /JNDI context...more
In the Adminstration server, go to the Global Settings tab. Once there, navigate to the "Configure JRE/JDK Paths" screen using the menu. Click on the "JDK" radiobutton. Fill i...more