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

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Queries regarding getting a job as a software developer [on hold]

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 ...
1
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0answers
44 views

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

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 ...
1
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1answer
75 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 ...
0
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1answer
56 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 ...
0
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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 ...
2
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3answers
149 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 ...
1
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2answers
54 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 ...
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0answers
66 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
206 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 ...
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0answers
46 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
68 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
votes
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 ...
2
votes
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 ...
4
votes
2answers
106 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 ...
2
votes
1answer
154 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 ...
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votes
3answers
151 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 ...
3
votes
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 ...
0
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1answer
476 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 ...
2
votes
3answers
355 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 ...
1
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1answer
219 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 ...
5
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6answers
820 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 ...
0
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3answers
388 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
votes
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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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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0answers
83 views

Including front end designers in enterprise web development [closed]

We are developing a web application using Java EE. The stack is heavy, the deployment is complex and now we want to include a purely CSS designer in the team. We want to include this designer without ...
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 ...
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votes
4answers
315 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 ...
2
votes
2answers
443 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 ...
4
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 ...
0
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3answers
220 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
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1answer
425 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 ...
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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 ...
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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. ...
4
votes
1answer
489 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 ...
4
votes
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 ...
0
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1answer
123 views

Do JAX WS implementation classes come as part of the Java 5/6 package or only as part of an application server libraries?

Do JAX WS implementation classes come as part of the Java5 package, as part of the Java6 package or only as part of an application server libraries like WAS? I read that it comes as part of Java EE? ...
1
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1answer
11k views

Why use JSP instead of servlets? [closed]

(Rewritten for reopening:) What are relative advantages of Servlets over JSP, or vice versa? Might JSP be preferred because it is easy to put code inside JSP, or Servlets because with them code can ...
3
votes
2answers
23k views

What is the difference between Enterprise Java vs Core Java? [duplicate]

I have some experience in programming in Java but wondering if someone could explain what is the difference between Enterprise Java vs Core Java? Someone asked me a question on whether I use ...
2
votes
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 ...
0
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1answer
670 views

Creating a separate project for JPA entities

Where I work it is a common practice to create a separate for JPA entities and a project for the web application (the WAR). So basically you have (at least) two project for each application - appJPA ...
6
votes
3answers
290 views

How will writing the transaction part in Java benefit the security of the application, when all other parts are being written in PHP?

A friend of mine while working on a PHP application asked me to write one part of the application in Java. The part that involved transactions. He said it will be better to write this portion in Java. ...
0
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1answer
186 views

Controller JSP - no view

Most people say do not use JSPs. But what if I have a JSP that does not show anything, it only acts as a controller? Why would I do that? Because we do not need to redeploy complete webapp to make a ...
1
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1answer
88 views

Understanding the meaning of “multiple lifecycles application development”?

Some Agile job posts have a requirement "strong understanding of multiple lifecycles application development", what does it means ? So my question would be: what's that field for, and what would I ...
3
votes
2answers
317 views

java classes and database queries

Can someone please explain the best way to solve this problem. Suppose I have three classes Person Venue Vehicle I have a DAO method that needs to return some or all of these attributes from each ...
0
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2answers
1k views

Migrating web app from php to Java [closed]

Hi I had today my first interview for a position of android developer.In my portfolio I had a php e-commerce application that has a catalog , ajax powered shopping cart , and administrator ...
3
votes
2answers
1k views

Recruiter asking for help understanding JEE5 or JEE6 and J2EE. (NOT A JOB POSTING NOT LOOKING FOR CANDIDATES)

I am a recruiter. I want to learn as much as I can about JEE5/JEE6 so when I try and find these types of candidates I can at least talk intelligently with them. What I need to understand is what goes ...