Skip to main content

All Questions

Filter by
Sorted by
Tagged with
1 vote
1 answer
118 views

Is this a good and simple example for Singleton Pattern [closed]

This is a scenario where we keep a single instance(as in Singleton Pattern) to get the configuration of an application. Below is the main class and i set values to the configuarion values here and ...
Harsha Jayamanna's user avatar
2 votes
1 answer
656 views

Composite implementation of a prototype singleton registry

I am studying design patterns and I've implemented a composite prototype pattern which is also a singleton (one instance per JVM). The main and most important part of the code is the ...
Levent Divilioglu's user avatar
3 votes
2 answers
18k views

Simple singleton database connection pool

I'm studying design patterns, and to demonstrate a singleton, I've implemented a primitive database connection pool. ConnectionPool.java ...
Levent Divilioglu's user avatar
-2 votes
1 answer
410 views

Enum Singleton implementation in Java

I just wanted to implement the enum singleton in java. Here is my implementation where I have tried to create a singleton DataSource instance: ...
Rahul's user avatar
  • 11
3 votes
1 answer
363 views

(Y.E.S.E.J.) Yet Another Singleton with Enum in Java

I have a Java class which has to be generated only once for all the objects that I have - it is a small program. This singleton class holds a mapping of characters. I Googled stack overflow and found ...
Kadir Gunel's user avatar
5 votes
3 answers
7k views

Design of a remoteControl class for connecting to electronic devices

In a course that I'm taking on learning object oriented programming in java, I have completed an assignment for modeling a home entertainment system and the ability for a user to be able to use a ...
Doublespeed's user avatar
2 votes
1 answer
245 views

Singleton has logic and state, and logic has state

------edit--------- note: this is for a MUD client, so the commands are issued to the MUD game server -----end edit-------- For an overview, here's the structure of the project: ...
Thufir's user avatar
  • 369
5 votes
1 answer
6k views

Singleton class extending a parent class to utilise shared functionality

I have a singleton class which extends from an abstract java class. Two singleton classes extend from ItemImageThreadManager, the reason for this is to use shared ...
blue-sky's user avatar
  • 547