How can I instantiate a JMS queue listener in java (JRE /JDK / J2EE 1.4) that only receives messages that match a given JMSCorrelationID? The messages that I'm looking to pick up have been published to a queue and not a topic, although that can change if needed. Here's the code that I'm currently using to put the message in the queue: ...
The scenario You have developed a webapp using EJBs version 3. The system is deployed, delivered and is used by the customer. If you would have to rewrite the system from scratch, would you use EJBs again? Yes: Don't answer this question, answer this one instead. No: Provide the top reason for not using EJBs again, based on your pe...
I've been a web developer for almost a decade. I've mostly used classic ASP/JavaScript and I'd like to move into Java based apps. I have a decent understanding of Java itself (enough to know how to lookup what I don't know) and I spent some time doing minor work on a JSF/Spring/Hibernate app, but from what a trusted coworker told me, t...
I was wondering if it would be possible to retrieve the complete list of security roles defined in a web.xml file in the java code? And if so how to do it? I am aware of the 'isUserInRole' method but I also want to handle cases where a role is requested but not defined (or spelled differently) in the web.xml file. ...
I am currently investigating how to make a connection to a SQL Server database from my Java EE web application using Windows Authentication instead of SQL Server authentication. I am running this app off of Tomcat 6.0, and am utilizing the Microsoft JDBC driver. My connection properties file looks as follows: dbDriver = com...
I'm familiar with the LAMP stack and over the years have successfully deployed a handful of web sties based on it. I've used everything from Apache + modPerl, to PHP, to Ruby and Rails. With good use of caching my Rails site can sustain a pretty good load, but I'm not talking massive. I never really liked Java as a language, or XML for ...
Hi All, I have a web service, that takes an input xml message, transforms it, and then forwards it to another web service. The application is deployed to two web logic app servers for performance, and resilience reasons. I would like a single website monitoring page that allows two things ability to stop/ start forwarding of message...
is it possible to include/embed one JEE application(war file) inside another? i have an application which is a portal application and i want to allow other users add there applications to it. In order to do this i need some way to be able access there applications in mine. Is this possibe? ...
I have many years of experience in Java including Swing, Servlet and JDBC, but have never programmed for a J2EE server. Many job advertisements from large companies are specifically asking for J2EE experience. Are there specific skills or development environments that I should learn to qualify for these kinds of jobs? ...
I need to profile a java application for a customer. It's an eclipse/maven project, so I decided on using eclipse TPTP ( http://www.eclipse.org/tptp ). I tried to install eclipse TPTP through the update manager from a standard eclipse installation, but I gave up because of the unbelievable complex setup and downloading of dependencies w...
Hello ! I'm trying to map a ManyToMany relationships between 2 tables, both having composite primary keys LSFOCTB which primary key is composed of : LSFOC_CODSOC,LSFOC_CODLSC,LSFOC_CODFOC LSFORTB which primary key is composed of : LSFOR_CODSOC,LSFOR_CODLSC,LSFOC_CODFOR The table in charge of the ManyToMany relationship is : LSFCFTB,...
Is it possible to store web content (such as JSPs, HTML, images, CSS etc) in a JAR file? I've been looking at various options at modularising our web applications and this is one possibility. We are currently using JSF and Facelets for our view technology - I'm thinking it may be possible to write some form of custom view resolver whic...
I am setting up my Java EE version of Eclipse to compile Servlets. I have the problem where Eclipse says "HttpServlet" cannot be resolved because it can't find the JEE jar files. I am using Windows XP. I already have Tomcat 6.0 up and running. I think the easiest solution would be to link to the servlet-api.jar file in the Tomcat instal...
I need to scale calls into Tomcat and it's been suggested to launch threads internally. Has anyone needed to do this and, if so, what solutions did they come up with? Thanks. ...
How do large web sites which cannot be completely stateless achieve extreme scalability at the web tier? There are sites like ebay and Amazon, which cannot be completely stateless, as they have a shopping cart or something like that. It isn't feasible to encode every item in the shopping cart into the URL, nor is it feasible to encode e...
Say I have a simple j2EE ear: foo.ear - foo.war I would like to deploy the same ear twice so I rename the ear: bar.ear - foo.war The META-INF\application.xml file looks like this: <application> <module> <web> <web-uri>foo.war</web-uri> <context-root>/baz</context-root> </web> </modul...
So I've played some with the new, not yet final release of ASP.NET MVC framework and I find it to be very nice and elegant. However at work we are tied to Java for the time being, so I'm wondering this: is there a port of the framework out there for Java people like myself? I realize that webforms isn't going to be available unfortunatel...
I'm in the process of developing a multi-tiered financial processing application in Java using EJB3 (Hibernate + Glassfish for the app and web services layer, Lift on Glassfish for the web UI) and I'm struggling with the question of where to put my business logic. When this project started, our first notion was to put the bulk of our bu...
I've set hibernate.generate_statistics=true and now need to register the mbeans so I can see the statistics in the jmx console. I can't seem to get anywhere and this doesn't seem like it should be such a difficult problem. Maybe I'm making things overcomplicated, but in any case so far I've tried: I copied EhCacheProvider and had it in...
I have now 1gb ram at work(i hope that will change soon) and jboss takes almost half of it and that is too much, i turned off logging to file, what more can i do to reduce memory usage ? ...