Blog
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Effectively Immutable Objects
An immutable object is one whose state cannot be changed after construction. All the beauty in these objects is that they are simple and safe. In multi-threaded applications all concurrency issues boil down to coordinating access to…
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Synchronizing threads with Java locks
Java locks often supersede synchronized blocks and methods by allowing to back out from the synchronization attempt. This post shows how to use the feature, and demonstrates some other basic concepts, like the lock fairness and reentrant…
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Command object in Grails
Using command objects in Grails is a simple way to perform data binding and validation when there is no need to create domain object. In this tutorial I will show you some examples of using it.
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Simply about Spring AOP
This week I would like to talk about aspect oriented programming. A lot of programming paradigms like OOP, modular programming and other, let to divide functionality into logical parts (functions modules, classes). But these functional elements may…
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Use Floats With Prudence
In the world of mathematics real numbers have infinite precision and are therefore continuous and lossless. Floating-point numbers, which are used in computing, are limited with a finite precision and are not evenly spaced throughout their range.…
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Authorize.Net CIM With Java SDK: Managing Your Customers’ Info
In the previous post I’ve told how to bill a customer with a minimal fuss. But oftentimes returning customers wish to add or change their billing information or maybe you want to delete the old ones. Let’s…
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Building ESME with Logica OpenSMPP Java library
Short Message Peer to Peer (SMPP) is an open, telecommunications industry protocol for exchanging text messages (SMS) between short message service centers (SMSC) and External Short Messaging Entities (ESMEs). The protocol is often used for connecting to…
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Simply about Spring. Inversion of Control (IoC)
This week I’ll tell you about inversion of control. This is very useful thing if you are going to develop dynamic application in compliance with modern approach to software development.
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Harnessing JIRA’s SOAP API with Java
JIRA is a popular issue tracking and project management software. It can be used and accessed by lots of different means like IDE, email client or a web browser. Also there are many plug-ins for all sorts…
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Creating SOAP client from wsdl file
Today we’ll talk about writing java client for exchanging data with web service using SOAP protocol specification. Many of the web services that supports SOAP have java libraries that can make this task pretty simple to implement.…
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Immutable Collections in Java
Occasionally, while programming, one may want to create constant sets and store them in final variables for public use. Such a desire can lead to all sorts of problems.
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Get process list in Unix based systems in Java
In this article we’ll talk about how to get process list in Java by running standard Unix commands.
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