Java Enterprise Edition (JavaEE) is a platform for enterprise computing for Java.

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Why Java does not have a framework like Rails? [on hold]

I am a Ruby on Rails developer and I like its simplicity and rapidness. On the other hand we need to use Java for some projects that we develop for our clients. My question is why (pure) Java does ...
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1answer
54 views

Is Glassfish Or TomEE better than plain Java Web Container? [on hold]

I am trying to migrate my plain Apache Tomcat 7.0 Server to Glassfish or TomEE, but I'm hesitating to decide because I'm afraid it can cause a performance impact. In plain Apache Tomcat I can ...
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0answers
31 views

Queries regarding getting a job as a software developer [closed]

I'm Computer Science Fresher and is looking for a good job in software devlopment. I know topics like Core Java, C++, data structures, SQL etc. I have following queries - 1) Should I learn ...
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0answers
49 views

How long to learn Java EE if I learnt Java SE? [closed]

I hope I did post at the right category for my question. First of all, I am currently looking for a job and from what I see is that there is quite a demand for programmers knowing Java EE rather than ...
3
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1answer
210 views

Debugging xml and annotations

By now, most web containers have an annotation variant of their xml configurations for Java EE. I'm guessing this is because it's better to keep things in Java where they can be managed, coded with ...
2
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3answers
159 views

Best way to consume REST service within Servlet on same server?

I'm builiding a web app and I'm implementing a RESTful API to expose the server to all sort of clients. On the web client I want to have both server rendering and client rendering. The majority of ...
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1answer
61 views

DTO and JPA Version

I have DB tables representing Employees and Departments. The server side(JavaEE) contains JPA entities representing the same. The client is a standalone client and communicates with the server using ...
1
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1answer
77 views

What is a good way for Tomcat to interact with another Java application running on the local machine

I'm new to using Java within a web environment. At the moment I have a Java application that we run on a local machine, we'll call it the server app. We want to add the ability to communicate with ...
2
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2answers
4k views

High-Load Java Server for Multiplayer

I am making a multiplayer game. Now I am trying to choose the technology to connect the android devices to the server. The clients run on Android, and the game is MMORPG. I would like to write the ...
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0answers
22 views

WebService NameSpace doubt

I am creating a java webservice. For that I am using @WebService annotation and @WebMethod for defining endpoint and service respectively. In both place I have option to provide targetNameSpace. Can ...
0
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1answer
477 views

Spring web application deployment infrastructure

I'm interested in hearing out what's out there in terms of tips and tricks on deploying and maintaining a Java web application whilst keeping agile. I'm running solo on a startup project I'd like to ...
1
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2answers
56 views

Module based project vs Normal project [closed]

I am writing code on top an established Enterprise application. I see that the application has 4 modules as shown below. -Srk -SrkEJB -SrkUtils -SrkWeb I have gone through the code and I see that ...
2
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0answers
50 views

Embedded tomcat cold deployment without service disruption

I have the following scenario. For various reasons I chose to use embedded tomcat for my rest backend that will form a cluster of AWS machines. I will want to deploy fairly frequently updates ...
2
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1answer
175 views

Best practices for programmatic describing of behavior of complex input forms

We have a complex web form (we use GWT/GXT stack) with lots of input elements of different types (text fields, selects, checkboxes, buttons), and behavior of these elements depends on each other. Now ...
0
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0answers
67 views

Microservices - remove unnecessary boilerplate?

My thoughts: microservices are becoming popular for distributed architecture java is (for now) a main course in enterprise applications JEE stack too How to reduce a boilerplate (including Maven ...
1
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3answers
208 views

Why is a architecture with anemic models the JavaEE standard?

I took a JavaEE course today and I was presented to the "default" JavaEE architecture, which consists mainly of Entities, Services and DTOs. The guy presenting the course explained that it was indeed ...
1
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1answer
135 views

How can I find what Resources a Java EE container provides?

How can I find what "Resources" a Java EE container provides? Can I discover this programmatically, or is there documentation I should refer to? (Note that the Java EE tutorial is vague on this ...
0
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0answers
48 views

handling external events in a cluster environment

I have an app written with JSF and Spring using JPA+Hibernate which is running on a Glassfish4 server. Right now I have an Observer pattern which is listening for some Postgresql events. Let`s say ...
0
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0answers
64 views

what is the relationship between CORBA, JMS and MDB?

In the context of my previous fuzzy question on microservices, please help me break down the terminology involved in these technologies: CORBA JMS MDB Utilizing JNDI, I believe it's possible to do ...
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0answers
70 views

How is ORB distinct from an endpoint?

What, fundamentally, am I misunderstanding about how to use appclient? The Application Client Container (ACC) includes a set of Java classes, libraries, and other files that are required for ...
2
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1answer
65 views

Use of validators for simple validations

I've been working in Liferay code, and I've come across this construct a few times: List<?> list; ... if (Validator.isNotNull(list)) { //do stuff }} The source code for Validator.java ...
0
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3answers
221 views

SOA, Java EE and data organization

At the company I work for, we're currently splitting up our monolith solution into a number of small services (SOA). The purpose of this is to make the developers working on each chunk of code ...
2
votes
1answer
155 views

Java App as Tomcat Service?

I currently have a basic j2ee website. Currently, a jsp frontend gets data from the backend (the java program, lets call it object "Score"). The backend gets this data from a web site. <% Main m ...
2
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1answer
431 views

How to package static content outside of web application?

Our web application has static content packaged as part of WAR. We have been planning to move it out of the project and host it directly on Apache to achieve the following objectives. It's getting ...
7
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4answers
10k views

Is there a recommended order to take the Oracle Java EE certification exams? [closed]

I recently passed the Oracle Certified Professional, Java SE 6 Programmer examination. Now, my boss would like me to take "the next step" to broaden my competence. I tried to explain that there is no ...
4
votes
2answers
107 views

Toggling “maintenance mode” in Java EE app

I've been toying with the idea of feature toggles for various configuration/access purposes, but have been a little unsure of myself when it comes to toggling something like a downtime or maintenance ...
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3answers
152 views

What programming languages are most suitable for implementing design patterns? [closed]

What programming language is best for implementing design patterns, (Factory , etc) especially for example if I need to develop a engineer scheduling system in less than a month. Would Java be my ...
4
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3answers
5k views

Customer wants to modify the .properties files packaged in our WAR file

I have a customer who wants the ability to modify the .properties files packaged in the web applications WAR file so that they have the control to modify environments at settings. They will be ...
2
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3answers
356 views

Could the creation of many methods in Java affect performance? [closed]

I was told by a colleague that in Java, the performance may be worse if we create more methods, stacking many methods calling over them in JVM, specially in a Java EE environment. This seems to ...
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1answer
222 views

How to avoid model duplication in JavaEE web applications with a JSON front end

Recently we developed a web app that uses the following tech stack: hibernate as orm spring extjs (MVC javascript front end) For 1 business object, let it be a Personnel, we have: 1) a Personnel ...
23
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4answers
25k views

Dev vs Stage environment vs Prod Environment

I work for a company where we build enterprise applications, and we maintain three environments: dev, stage and prod. The meaning of dev is intuitive: it's the environment used during development of ...
6
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2answers
2k views

exact answer for “what is j2ee?” - job interview [closed]

I'd like to ask if someone of you knows the exact meaning of JEE. That's because a collegue of mine was asked this question in a job interview, and was "unable to answer properly"... to speak with ...
5
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6answers
829 views

Desktop to Web - How to deal with user-interactive workflows

I start a new project this summer, consisting in developing a web version of a proprietary desktop ERP. The main goal of my company is to be able to propose a web version of its ERP, with all ...
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1answer
129 views

How should a JEE application store credentials for logging in to an external system?

I am in a situation where I have a Web Application (WAR) that is accessing a REST service provided by another application. The REST service uses Basic HTTP Authentication. So that means the ...
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3answers
389 views

Why do APIs generally consist of interfaces? [duplicate]

I am starting out in Java API design and in reading existing code bases, I have found that most APIs consist of interfaces only with their implementations bundled in a different package. Having read ...
3
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3answers
291 views

If I unite many web apps into one, will I save resources?

I'm comparing 2 different approaches of J2EE application architecture: Divide independent parts as modules of one big web app. Divide independent parts as different web apps running on same server. ...
0
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4answers
808 views

Why isn't Java being used for web multimedia applications? [closed]

I've been focusing on multimedia applications and I've noticed that most applications don't use Java in the back end. Instead, I see solutions with PHP/ROR/Python and Flash/Silverlight without any ...
2
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3answers
3k views

What is meant by 4 GL?

I came across the term 4GL(generation language) in reading about Oracle ADF Busniess components . I want to know what exactly is 4GL ? This is the actual quote from the book Oracle Fusion Guide: ...
55
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1answer
9k views

What are these different Java versions for?

I am just about to start my Java journey, ( I've already dabbled in C++) but I am getting really confused about all the different versions of Java: JavaSE JavaEE JavaFX etc. Can someone explain ...
0
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1answer
168 views

Best way to make synchronous calls between JEE apps [closed]

I have two jee web apps that are going to be published on the same physical server, but on different network addresses. APP A: Listens to a port on a public IP address and makes synchronous ...
2
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2answers
445 views

J2EE - Session swap

Application server - JBoss AS 7.1.1 JDK6 J2EE 1.3 My web application is more than 10 years old and facing this session swap problem in my portal. Noticed that swap happens mostly when many ...
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4answers
316 views

Why creativity is consider a bad practice by architects? [closed]

If you do something creative (for example I did a new approach to logging) is consider a bad practice. the good practice in Java is to put static field logger in every class. My approach creates ...
1
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1answer
136 views

Implementing an interface from a framework vs simple java interface

This concept is unclear with me. I have worked on several frameworks for an instance Spring. To implement a feature we always implement some interfaces provided by the framework. For an instance if ...
5
votes
5answers
21k views

Java web application folder structure

As a beginner to J2EE, I have recently started developing my own project from scratch using the Core of J2EE : Servlets & Jsps. I could not evaluate whether my project folder structure is right ...
1
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1answer
538 views

Applying DDD principles in a RESTish web service

I am developing an RESTish web service. I think I got the idea of the difference between aggregation and composition. Aggregation does not enforce lifecycle/scope on the objects it references. ...
1
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1answer
213 views

The Nature of Spring [duplicate]

Is it accurate to say that dependency injection manually using java (without spring) is nothing but implementing the strategy pattern (as per this example)? Furthermore, is it correct to say that ...
4
votes
1answer
491 views

Shall I separate the admin part from the rest of the war

I built a web-applicationg using struts2. Then I built a small admin interface in the same war. With time the webapp grew and so the admin-interface. Now, I'm thinking to separate the admin interface ...
35
votes
5answers
11k views

Is object pooling a deprecated technique?

I am very familiar with the concept of object pooling and I always try to use it as much as possible. Additionally I always thought that object pooling is the standard norm as I have observed that ...
4
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1answer
481 views

Web app outgrowing current framework

I have quite a bit of experience with using Django for websites and so when I started a new project I naturally chose to use Django for it. Everything went well for a time but now the application is ...
4
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3answers
5k views

Heavy use of static methods in a Java EE web application?

Generally I am asking if this is a norm. The application architecture includes spring and the zk framework. I personally can't help but think this introduces a number of problems. I mean...this is a ...