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Tweeting StackExchange Questions with Spring Social


1. Introduction This is the third and final article about a small side-project – a bot that automatically tweets Questions from various Q&A StackExchange sites on specialized accounts (full list at the end of the article). The first article discussed building a simple client for the StackExchange REST API. In the second article we set up the interaction with Twitter ...

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Java EE CDI Disposer methods example


This is a tutorial of CDI Disposer methods. In CDI, since a Producer method generates an object that can then be injected in an application, the Disposer method is used so that the object is removed when its work is completed. A Disposer method is always matched to a Producer method. An example of the Disposer method use is when ...

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Improve Performance by caching and compression


Web page designs are becoming innovative with rich interface which involve extra code such as java scripts, css, and images etc. Most of the end-user response time tied-up in downloading these components.Optimizations of number of http requests and response size are the key parameters to improve the web application performance. This article explains about caching filter and compression filter that ...

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Spring MVC: Security with MySQL and Hibernate


Spring has a lot of different modules. All of them are useful for the concrete purposes. Today I’m going to talk about Spring Security. This module provides flexible approach to manage permitions for access to different parts of web-application. In the post I’ll examine integration of Spring MVC, Hibernate, MySQL with Spring Security. A regular case for any web-application is ...

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Template Method Pattern – Using Lambda Expressions, Default Methods


Template Method pattern is one of the 23 design patterns explained in the famous Design Patterns book by Erich Gamma, Richard Helm, Ralph Johnson and John Vlissides. The intent of this pattern is stated as: Define the skeleton of an algorithm in an operation, deferring some steps to subclasses. TemplateMethod lets subclasses redefine certain steps of an algorithm without changing ...

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A simple application of Lambda Expressions in Java 8


I have been trying to fit in lambda expressions in the code I write and this simple example is a consequence of the same. For those totally unaware of Lambda Expressions in Java, I would recommend them to read this first before getting into this post. Ok, now that you are familiar with Lambda Expressions (after reading the introductory post), ...

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Publish/Subscribe Pattern with Apache Camel


Publish/Subscribe is a simple messaging pattern where a publisher sends messages to a channel without the knowledge of who is going to receive them. Then it is the responsibility of the channel to deliver a copy of the messages to each subscriber. This messaging model enables creation of loosely coupled and scalable systems.             It ...

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Comments are for Losers


If software development is like driving a car then comments are road signs along the way. Comments are purely informational and do NOT affect the final machine code. Imagine how much time you would waste driving in a city where road signs looked like this one. A good comment is one that reduces the development life cycle for the next ...

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How to Integrate In App Purchase Billing in Android


Hello Friends! Today I am going to share very useful blog for In App Purchase in Android. Google provide In App Billing faculty in Android. In App Purchase is a very easy and secure way for make payment online. Please follow my blog step by step: Screen Shot Create a new Project in Android. Create class. Add activity_main.xml in ...

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