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Tag Archives: Spring

Spring XD 1.0.0.M5 is here!

spring-interview-questions-answers

Spring XD announces the Spring XD 1.0.0.Milestone 5 release. You can download it from here. According to Spring XD 1.0.0.M5 Released, Spring XD is a unified, distributed, and extensible system for real time analytics, batch processing, data injection and data export. The 1.0.0.Milestone 5 release provides new features to solving big data problems, as described below: There are pre-defined batch ...

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Project Student: Sharding Integration Test Data

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This is part of Project Student. Other posts are Webservice Client With Jersey, Webservice Server with Jersey, Business Layer and Persistence with Spring Data. All of the integration tests until now have used an in-memory embedded database that did not retain information from run to run. This changes when we fully integrate the REST server with a “real” database server ...

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Project Student: Business Layer

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This is part of Project Student. Other posts are Webservice Client With Jersey, Webservice Server with Jersey and Persistence with Spring Data. The third layer of the RESTful webapp onion is the business layer. This is the guts of the application – well-written persistence and webservice layers are constrained but anything goes in the business layer. We’re only implementing CRUD ...

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AmazonSQS and Spring for messaging queue

spring-interview-questions-answers

The next post will demonstrate how to use Spring JMS templates and DLMC’S together with AmazonSQS API in order to place message queue. Why would I use Amazon SQS? Easy to configure Cross-platfom support Earn from your self redundant, conjunction and scaling worries.         Why I wouldn’t use Amazon SQS? If the latency requirement demands less than  ~20 ...

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Project Student: Persistence With Spring Data

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This is part of Project Student. Other posts are Webservice Client With Jersey, Webservice Server with Jersey and Business Layer. The final layer of the RESTful webapp onion is the persistence layer. There are two philosophies for persistence layers. One camp sees the database as a simple store and wants to keep this layer extremely thin. The other camp knows ...

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Adding Social Sign In to a Spring MVC Web Application: Unit Testing

spring-interview-questions-answers

Spring Social 1.0 has a spring-social-test module which provides support for testing Connect implementations and API bindings. This module was removed from Spring Social 1.1.0, and it was replaced with the Spring MVC Test framework. The problem is that there is practically no information about writing unit tests for an application which uses Spring Social 1.1.0. This blog post fixes ...

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Spring’s @Primary annotation in action

spring-interview-questions-answers

Spring is a framework that never stops to amaze me. It’s because of the fact that it offers plenty of different solutions that allow us, developers, to complete our tasks without writing millions of lines of code. Instead we are able to do the same in a much more readable, standardized manner. In this post I will try to describe ...

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What is Spring Data?

spring-interview-questions-answers

(This is related to Project Student and I will revisit this topic later.) Spring Data came up in passing in several recent interviews. What is Spring Data? To answer that let’s consider the standard approach to persistence – all access is made via Data Access Objects (DAOs). This completely isolates the rest of the system from the specific details of ...

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Using more than one property file in Spring MVC

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Everybody heard about portals which combine single web applications to a big one. A portal software works like mashups – content from several sources is picked up in a single service, mostly displayed in a single web page. A portal software also allows to change user settings, such as language or theme, across all single web applications (independent modules) embedded ...

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Spring REST: Exception handling vol. 1

spring-interview-questions-answers

Table of contents Spring REST: Exception handling vol. 1 Spring REST: Exception handling vol. 2 Spring REST: Exception handling vol. 3 Hi everyone, it’s time to continue publish new articles in my blog. So I’m happy to announce that I’m planning to write a couple of technical series of posts. In the current post I’m going to start talking about ...

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