Java Enterprise Edition (JavaEE) is a platform for enterprise computing for Java.
0
votes
0answers
49 views
Recommended to Override init() method in Servlets but not init(ServletConfig config)
I was going through some concepts in Servlets. Here the recommendation is that we can freely override init() than init(ServletConfig config).
One reason I see is becasuse it is inherited from the ...
-2
votes
0answers
89 views
Beginner's guide to web development [closed]
I've been studying C/C++/Java programming for nearly two years and I want to learn web devlopment now. All I used to write are stand-alone programs, I know just a little HTTP.
The problem is I find ...
-1
votes
1answer
241 views
Why Java web technologies called enterprise? [closed]
While Java FX and other GUI applications called as standard edition (Java SE), I wonder why jsp, servlet, jsf etc. technologies called as enterprise (Java EE)? The word "enterprise" sounds like there ...
0
votes
1answer
160 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 ...
-5
votes
0answers
50 views
Please provide me code for below question? [closed]
Let them "transpose" a text file. For example, this file:
===
ab
cde
fg
===
would be transposed to:
===
acf
bdg
e
===
0
votes
2answers
244 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 ...
1
vote
0answers
148 views
Persistent async queue - reviewing various architecture options [closed]
I'm writing a system that dispatches reports and need some help with the design:
The requirements in high level:
reports are being created ad hoc
reports are being sent via emails to a list of ...
1
vote
1answer
97 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
votes
1answer
46 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
174 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
votes
2answers
88 views
Building Website with JAX-RS (Jersey)
Is it discouraged/not-common to build Websites (not web-services!) using Jersey or any other JAX-RS implementation ?
I didn't find any guide/tutorial/article regarding that..
At first impression , ...
0
votes
0answers
49 views
Unit Test the integration layer using CDI
JEE-CDI allows you to create applications integrating components with annotations and configuration files. What I call integration layer is the set of annotation and configuration file that enables ...
0
votes
1answer
79 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
vote
1answer
71 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 ...
-1
votes
2answers
598 views
Best Java framework for Backend Application [closed]
I'm planning to create an application in Android and Web which relies on a back-end java application for data. So, currently I'm thinking of having the business logic in java layer which communicates ...
3
votes
2answers
171 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
votes
2answers
334 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
317 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 ...
1
vote
1answer
157 views
JUnitEE vs JUnit
I know what unit testing is in general and what JUnit is in particular. But here I see that there is a project called JUnitEE which seems to me to be a wrapper over JUnit. So I would like to better ...
0
votes
6answers
404 views
Looking to build a 2 java applications. should it be web-based application or standalone application?
The first application (web-based) will be located at site1 and once the information is processed, it will be sent to the second application(web-based) located at site2. Application2 needs to be able ...
4
votes
1answer
221 views
Good design for delegates in a service oriented architecture
My problem is quite complex to explain and my English is not excellent, so I hope you can understand my question.
In a service oriented architecture there are some modules that own data used by all ...
1
vote
2answers
129 views
j2ee implementing security and using a framwork pros and cons
I'm a newbie to j2ee security, and I'm not j2ee expert either, though I'm really willing to put some effort and learn. I've an application that I'm about to develop on Google App Engine (GAE) - with ...
4
votes
2answers
192 views
JavaEE server experience matters for a developer?
Lately I am seeing quite a few application development job ads asking for experience with this or that Java EE server. I can understand this if it is for a server administrator, however I find it ...
0
votes
1answer
156 views
How do remote interfaces work with JavaEE and glassfish?
I would like to know what is going on "under the hood" if I use remote interfaces in JavaEE. In the project I use a stateless enterprise bean that implements a remote interface. And I can call methods ...
0
votes
2answers
82 views
1 Interface 2 Implementations and an EJB exception
In my JavaEE project I have an interface like this:
@Local
public interface DataAccess { ... }
And two stateless beans implementing it:
@Stateless
public class DataAccess_Online implements ...
2
votes
1answer
338 views
Why isn't Java being used for web multimedia applications?
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 ...
4
votes
3answers
214 views
How should I go about “overhauling” a large legacy application? [duplicate]
Possible Duplicate:
I’ve inherited 200K lines of spaghetti code — what now?
For my next project, I've been tasked with "overhauling" a large legacy web application with many parts. It is a ...
5
votes
2answers
184 views
Is it fine to use logs in the Helper Methods?
I have been doubting for a long time whether or not to have a logger in methods (usually helper methods) like the one below.
Whether we can print it in the method or print the response where the ...
3
votes
2answers
263 views
How to remove duplicate exception block code
I have good number of Service and DAO classes which has the same set of 30 line exception code block which gets repeated and it shows up in Code Duplication report.
The approach which i can think of ...
0
votes
1answer
123 views
What factors should I consider when logging a (JSF) web-app?
I've recently read the article The Problem with logging and was wondering about my current logging strategy.
Usualy I use Log4J in my projects and just have to decide which line/attributes I would ...
1
vote
3answers
394 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:
...
1
vote
1answer
156 views
What should be stored in UserContext?
From my general understanding I believe UserContext for a web application is supposed to hold user authentication and authorization (user roles) information.
As part of user roles, there are ...
-2
votes
2answers
260 views
How can I test database access methods in Java? [closed]
I want to write a test for a method that accesses a database such as following.
public class MyClass{
public String getAddress(Int id){
String query = "Select * from Address where ...
0
votes
3answers
2k views
Relationship DAO, Servlet, JSP and POJO
I want to implement a JSP, POJO, DAO and Servlet in my J2EE program. However, I don't fully understand how the relationship between these elements should be. Is the following (MVC) setup the right way ...
3
votes
4answers
579 views
Is there a recommended order to take the Oracle Java EE certification exams?
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 ...
3
votes
4answers
584 views
Why JSP over Servlets for view?
Although servlets does the task of sending the HTML code to the client programmers weight JSP over servlets for that. Even a JSP code is compiled into servlet before giving the response to the browser ...
4
votes
1answer
1k views
Node.js Or servlets?
I have heard a lot and read about the Javascript server side language i.e Node.js, and saw many comparisons in favor of Node.
I don't understand what makes it better or faster, or how it even relates ...
3
votes
2answers
267 views
Is it possible to migrate struts/spring based application to GWT?
I am using the combination of spring, spring-security, struts and iBatis in my application. Now I am looking to migrate the struts UI to GWT.
The new combination must be spring, spring-security, GWT ...
4
votes
3answers
209 views
When, how and why should one upgrade (Java) frameworks?
Short summary as introduction:
We are a small Java web development team, creating applications using various frameworks and libraries like JSF, Hibernate, Seam, all together deployed in JBoss AS.
...
1
vote
1answer
173 views
Best Persistence choice for J2EE-App with frequently changing Data Model [closed]
Whenever I develop a J2EE-Application, I at some point decide to switch from my dummy Persistence (Simply Using Lists and other Data Structures) to some Sort of Database Persistence. Mostly when I ...
0
votes
1answer
176 views
EJB Lifecycle and Relation to WARs
I've been reading up on EJBs (3.x) and believe I understand the basics. This question is a "call for confirmation" that I have interpreted the Java EE docs correctly and that I understand these ...
12
votes
2answers
6k views
Selecting a JAX-RS implementation for a new project
I'm starting a new Java project which will require a RESTful API. It will be a SaaS business application serving mobile clients.
I have developed one project with Java EE 6, but I'm not very familiar ...
2
votes
2answers
158 views
Where to start when digging into an existing J2EE codebase?
I work for a company that produces enterprise applications to be used by schools and districts to manage all of their tests and standards data. Their existing application is written in J2EE and is ...
2
votes
5answers
3k views
How to unit test a jsp file?
I'm developing a Java 6 EE application and I'm testing my jsp code with another one with a testing version of the function calls and code used in the original one but it seems loose and impractical. ...
6
votes
1answer
735 views
exact answer for “what is j2ee?” - job interview
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 ...
7
votes
1answer
507 views
Why isn't reflection on the SCJP / OCJP?
I read through Kathy Sierra's SCJP study guide and I will read it again more throughly to improve myself as a Java programmer and be able to take the certification either Java 6 or wait for the Java 7 ...
4
votes
2answers
2k 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 ...
0
votes
2answers
744 views
Do Java, J2EE and Java Web get better with time? It still looks problematic to me after months [closed]
I'm a little new to Java Web Development. JSF, JSP, Servlets, Hibernate etc... I have really a good understanding of OOP and C++. I have years of PHP and MySQL web development experience. I also have ...
2
votes
4answers
234 views
Should OO design, or database design, drive the coding of my @Entity classes?
I have two classes that I want related to each other in an JEE application using JPA2. In an OO world, I would say that a Chatroom has an attribute List messages. In the relational world composition ...
-2
votes
1answer
79 views
Migrating the specification level of Java EE projects [closed]
What do we mean when we say "Migrating the specification level of Java EE projects"? Does this actually entail an application rewrite? TIA.
