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• Getting EL variable properties in eclipse

  - by wheresrhys

  I'm using Eclipse/Spring source to edit JSP tags and EL. If I want to check what all the properties of a variable are is there a way to do this? Or even find out which file is generating the variable that's passed in. I'm thinking something along the lines of firebug for Javascript, where you can select an object and drill-down to get it's properties.

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• Configure trace for SpringServer dm 2

  - by Eric J.

  According to the Spring documentation, By default, the dm Server trace file is called $SERVER_HOME/serviceability/logs/dm-server/log_i.log ... The index i varies from 1 to 4, on a rolling basis, as each log file exceeds 10Mb. I'm aware that the default trace file name can be changed in server.config. Is it possible to change the number of log files that are kept before rolling over and/or the maximum log file size? How?

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• NInject2 Interceptor usage with NHibernate transactions

  - by Daniil Harik

  Hello, In my previous project we used NHibernate and Spring.NET. Transactions were handled by adding [Transaction] attribute to service methods. In my current project I'm using NHibernate and NInject 2 and I was wondering if it's possible to solve transaction handling using "Ninject.Extensions.Interception" and similar [Transaction] type attributes? Thank You very much!

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• Managing Java dependencies in a Grails application?

  - by Stefan Kendall

  I'm trying to adopt my development from Spring/Maven2/Tomcat -> Grails, and I'm wondering if there's an easy way to manage dependencies in grails separate from maven. Maven does a lot of the magic that grails is doing automatically (unit testing/building/etc.), so I wonder if there's a need for maven at all in grails projects. So, then, how do Grails users generally manage java dependencies? I've become accustomed to central repository dependency management, and I can't turn back at this point.

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• Eclipse maven and wtp

  - by asrijaal

  Hi there, I've installed the m2eclipse plugin with WTP integration in my eclipse workbench. When I use to run the project on a server, the dependencies which has to be provided at runtime (e.g. spring) are not deployed. Is this working like intended? Maybe some of you can provide me the right way.

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• Do you always use the same technologies/frameworks?

  - by James.Elsey

  When given a new task/challenge/application to build, do you always use the same framework, for example spring / struts? Or do you try something new that you haven't used before, such as GWT? What makes you return to the same technology stack? Is it good to be advanced at particular technologies, or to have a broad understanding?

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• Oracle thin driver vs. OCI driver. Pros and Cons?

  - by Zwei Steinen

  Hi, When you develop a Java application that talks to oracle DBs, there are 2 options right? One is oracle thin driver, and the other is OCI driver that requires its own installation (please correct if I'm misunderstanding). Now, what are the pros and cons? Obviously thin driver sounds much better in terms of installation, but is there anything that OCI can and the thin one can't? Develop environment is Tomcat6 + Spring 3.0 + JPA(Hibernate) + appache-DBCP Thanks in advance.

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• What is a service provider?

  - by Joey

  Sorry if this is a silly question but I am a C developer who just happen to be in a meeting with a bunch of .NET guys and over heard their conversation. They were sketching out a design and constantly talk of service provider, services and spring. Instead of looking silly by asking them, I just decided to post here. BTW, I am doing device driver development (have been for more than 10 years using C) and NEVER heard of service provider.

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• How to map EnumSet (or List of Enums) in an entity using JPA2

  - by arteq007

  I have entity Person: @Entity @Table(schema="", name="PERSON") public class Person { List<PaymentType> paymentTypesList; //some other fields //getters and setters and other logic } and I have enum PaymentType: public enum PaymentType { FIXED, CO_FINANCED, DETERMINED; } how to persist Person and its list of enums (in this list i have to place variable amount of enums, there may be one of them, or two or all of them) I'm using Spring with Postgres, Entity are created using JPA annotation, and managed using Hibernate

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• Flex 3 file download - Without URLRequest

  - by Srirangan

  Hey guys, My Flex client app has got some data from the back end (RemoteObjects, BlazeDS, Spring). Client has got all the data it needs, it now needs to put some information in a CSV format and make it available for download. Using Flex 3 for this. Any ideas? Thanks, Sri

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• JPA is not good enough

  - by Cristiano Sanchez

  Working in a medium size project during last 4 months - we are using JPA and Spring - I'm quite sure that JPA is not powerfull for projects that requires more than CRUD screen... Query interface is poor, Hibernate doesn't respect JPA spec all the time and lot of times I need to use hibernate classes, annotations and config. What do you guys think about JPA? Is it not good enough?

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• Seam Gives Unknow Entity Exception For Entities in Jars

  - by Noura

  Hi, I am trying to use Seam to persist my jpa entities, when I reference an entity that is in a jar seam says unknown entity. I don't want to add all classes in persistence.xml I want seam to scan my jars and auto detect entities (as done by spring). what I miss?

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• C programming getting back into it - the red pill

  - by JavaRocky

  Can someone provide recommended reading, website resources or best practices to follow when programming with C. I am a proficient software developer with strong skills in Java and PHP. Is there standard libraries these days which people use? Like what spring is to java? And standard design patterns for managing memory or even standard libraries for that fact? I want to write solid, maintainable C programs. GO THE RED PILL! :P

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• Online java training

  - by sezhian

  I am looking for online webbased/CBT training/self study training videos for Java EE related technologies like Struts, JSF, JPA, Websphere, Spring and Hibernate. I'm using learndevnow for Microsoft related technologies. It's really good, I am looking for similar thing for Java EE. Any suggestions please?

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• WS Libs: com.sun.xml vs javax.xml

  - by Zilvinas

  There are identical classes of java WebServices API & IMPL in those packages groups, only package names are different. http://mvnrepository.com/artifact/javax.xml http://mvnrepository.com/artifact/com.sun.xml Which ones should I use in my code? I would prefer NON-com.sun.* as per java conventions, but still my dependencies ( e.g. Spring ) are using implementations from com.sun.* OR I can't find an implementation package in javax.xml Does anyone have any experience on this?

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• Verify XHTML is valid in a JUnit test?

  - by user258526

  I have a Spring controller that returns XHTML, what's the easiest way to setup a JUnit test that verifies that the XHTML is valid? I'd also like to verify certain elements are present.

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• tomcat support which technologies ?

  - by ManWard

  hi i read alot about GlassFish application server that support whole JEE6 Technologies.but tomcat which ? i know tomcat is Servlet/JSP container.but i see articles in web about " JSF and tomcat " , "Hibernate and tomcat" and many more... can tomcat play with these technologies : EJB , JSF , JPA , Hibernate , Spring [Framework] , .... ? thanks

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• Single page Web App in Java framework or examples?

  - by Adam Gent

  Has anyone seen an example or done the following in Java: http://duganchen.ca/single-page-web-app-architecture-done-right/ That is a design a single page web app that will work with Google SEO with out massive violation of DRY using Java technologies? It doesn't seem terrible hard to do this on my own but I was curious (and lazy) to see if someone had already done it with either Spring or JAX-RS.

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• What is the best way to organize directories within a large grails application?

  - by egervari

  What is the best way to organize directories within a large grails application? In a typical Spring application, we'd have myproject/domain/ and myproject/web/controllers and myproject/services Since grails puts these artifacts in their own directories... and then just uses the same base project package for everything, what is the best practice? Use the same sub package name for domain objects, controllers, services too? Ken

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• How to handle major framework/dependency upgrades?

  - by APSampson

  Looking for some best practices on handling a major dependency upgrades within a project, assuming the use of a dependency management tool(e.g., Maven 2). Specifically, I'm interested in: How get an inherited application up-to-date(e.g., Spring 1.2.x to 2.5.x) What practices can be put into place to after such an overhaul to keep applications somewhat up-to-date Your own experiences or any articles/papers you've come across/found to be useful are welcome.

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• Jython saying "No visible constructors for class"

  - by clutch

  I have a jython servlet as part of a large application running in tomcat5. I tested a few Spring Framework classes and create the objects in the Jython servlet. When I try to create objects of classes in the application I catch an Exception message "No visible constructors for class". These java classes do have a public constructor class, such as: public SchoolImpl() { } I create the object in python: from com.dc.sports.entity import SchoolImpl ... school = SchoolImpl() What am I doing wrong?

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• Which technologies does Tomcat support?

  - by ManWard

  I read a lot about GlassFish application server that it supports the whole Java EE 6 specification. But which does Tomcat support? I know that Tomcat is a JSP/Servlet container, but I see articles in web about "JSF and Tomcat", "Hibernate and Tomcat" and many more. Can tomcat play with these technologies: EJB, JSF, JPA, Hibernate, Spring, etc..?

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• Are there any MVP Frameworks projects out there?

  - by Greg Malcolm

  MVC is used a number of popular frameworks. To name just a few, Ruby on Rails, ASP.NET MVC, Monorail, Spring MVC. Are there any equivalent frameworks using any variant of MVP? Most of the examples I've found online seem to be custom implementations of the pattern rather than reusable frameworks. Suggestions need not be specific to any particular programming language, my interest is mostly academic.

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• Move namespace declaration from payload to envelope on an axis created web service

  - by rmarimon

  I just created a web service client using axis and eclipse that does not work with my web service provider. The message created by the web service client looks like this: <?xml version="1.0" encoding="UTF-8"?> <soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"> <soapenv:Body> <enviarMensajeRequest xmlns="http://www.springframework.org/spring-ws/Imk-Zenkiu-Services"> <usuario>someuser</usuario> <clave>somepassword</clave> <mensaje>somemessage</mensaje> <contacto> <buzonSMS>somenumber</buzonSMS> <primerNombre>somefirstname</primerNombre> <primerApellido>somelastname</primerApellido> </contacto> </enviarMensajeRequest> </soapenv:Body> </soapenv:Envelope> I see nothing wrong with the message but my provider insists the message should be: <?xml version="1.0" encoding="UTF-8"?> <soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:imk="http://www.springframework.org/spring-ws/Imk-Zenkiu-Services"> <soapenv:Body> <imk:enviarMensajeRequest> <imk:usuario>someuser</imk:usuario> <imk:clave>somepassword</imk:clave> <imk:mensaje>somemessage</imk:mensaje> <imk:contacto> <imk:buzonSMS>somenumber</imk:buzonSMS> <imk:primerNombre>somefirstname</imk:primerNombre> <imk:primerApellido>somelastname</imk:primerApellido> </imk:contacto> </imk:enviarMensajeRequest> </soapenv:Body> </soapenv:Envelope> Notice the namespace declaration moving from the enviarMensajeRequest to the soapenv:Envelope and the qualification with imk: on the parameters. I've tried many combinations on the process but my web service, wsdl and xml knowledge is very limited. The provider says that they can't help beyond telling me this. Any ideas? Perhaps a different framework that I can use to create the correct client.

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• Best way for user authentication on JavaEE 6 using JSF 2.0?

  - by ngeek

  I'm wondering what the current state of art recommendation is regarding user authentication for a web application making use of JSF 2.0 (and if any components do exist) and JEE6 core mechanisms (login/check permissions/logouts) with user information hold in a JPA entity. The Sun tutorial is a bit sparse on this (only handles servlets). This is without making use of a whole other framework, like Spring-Security (acegi), or Seam, but trying to stick hopefully with the new Java EE 6 platform (web profile) if possible. Thanks, Niko

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