Tagged Questions
8
votes
6answers
269 views
Interpretation of DRY principle
Right now I'm struggling with this concept of DRY (Don't Repeat Yourself) in my coding. I'm creating this function in which I'm fearing it's becoming too complex but I'm trying to follow the DRY ...
0
votes
0answers
69 views
initial Class design: access modifiers and no-arg constructors
Context:
Student working through Class design in personal/side project for Summer. I've never written anything implemented by others or had to maintain code. Trying to maximize encapsulation and ...
9
votes
5answers
389 views
OOP :What are some of the situations in which class based design is better than interface based one?
I was reading JDOM's website.
Why is the JDOM API defined in terms of concrete classes rather than interfaces?
Jason Hunter summarizes the arguments against an interface-based API for JDOM:
...
2
votes
2answers
107 views
Replacing dao layer
I am developing a series of webservices (based on spring and spring mvc).
For the first time in my dev career I do plan on replacing the dao layer in the future(I have always seen it mentioned but ...
5
votes
3answers
136 views
When is 'cloning', rather than reusing, a module acceptable design solution?
For this question, I'll give an example module to facilitate the discussion, Let's say the module is a calculation engine, It currently servers its purpose for its current audience. The requirement is ...
1
vote
2answers
168 views
Designing complex query builders in java/jpa/hibernate
I need to build complex sql queries programatically, based on large filter conditions.
For example, below are few sample/hypothitical filter conditions, based on which i need to fetch users
Country: ...
3
votes
3answers
106 views
Designing an API on top with Java RMI and Rest APIs
I'm working on the backend of a java web application. We have a document repository (Fedora Commons specifically) where we house xml files. I want to abstract the API of the repository internally so ...
2
votes
1answer
90 views
What are the design decisions involved in choosing how to expose a Java web application?
There are many ways to expose a Java web application to the consumer: application container (JBoss etc), servlet container (Tomcat etc), OSGi (Knopflerfish etc), self-executable WAR (Winstone etc) and ...
1
vote
1answer
122 views
Separating model from UI
I have a Swing application with a custom TreeModel that can refer to domain instances. I'm wondering what changes I could make if I consider moving to a web interface later on. Would a pluggable model ...
-3
votes
2answers
136 views
How to effectively design a piece of software [closed]
Im a compsci student and I've got some experience in various languages and paradigms
c/java/python/ruby/html/css/scheme/sql/asp(classic).
I realise that I want to have some software in my portfolio ...
0
votes
2answers
100 views
Should Business Interfaces be part of the Model layer?
In an oriented-services enterprise application, isn't it an antipattern to mix Service APIs (containing interface that external users depends on) with Model objects (entities, custom exceptions ...
0
votes
2answers
203 views
how should I design Objects around this business requirement?
This is the business requirement:
"
A Holiday Package (e.g. New York NY Holiday Package) can be offered in different ways based on the Origin city:
From New Delhi to NY
From Bombay to NY
NY itself ...
12
votes
5answers
381 views
Do ORMs enable the creation of rich domain models?
After using Hibernate on most of my projects for about 8 years, I've landed on a company that discourages its use and wants applications to only interact with the DB through stored procedures.
After ...
1
vote
1answer
95 views
DDD and validation of aggregate root
Suppose an aggregate root : MailConfiguration (wrapping an AddressPart object). The AddressPart object is a simple immutable value object with some fields like senderAdress, recipentAddress (to make ...
2
votes
4answers
188 views
JSF for an internet facing, high traffic web application
I, perhaps, made a wrong choice of going with a Component-based Framework like JSF for an internet facing, high traffic web application.
Development with JSF has although been easier but what I fear ...
