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Understanding the OutOfMemoryError

Whenever you find yourself staring a stacktrace with OutOfMemoryError in it, it should all be crystal clear. The program has got no more elbow room and is dying just because of lack of it. From the 10,000 feet or executive chair t ...
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Grails – GORM Tutorial

Grails is known as domain driven language that means we can build application using bottom to top approach which is more nearer to object oriented programming. GORM (Grail Object Relational Mapping) uses intern Hibernate to map th ...
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Spring Data REST in Action

What is spring-data-rest? spring-data-rest, a recent addition to the spring-data project, is a framework that helps you expose your entities directly as RESTful webservice endpoints. Unlike rails, grails or roo it does not generat ...
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Android Custom Loader to Load Data Directly from SQLite Database

Today we’ll discuss about custom loaders in Android. Loaders have been introduced from Android 3.0 but we can also use loaders in prior versions of Android starting from Android 1.6 with the help of Android compatibility library ...
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An argument against defaulting to auto-increment primary keys

The de-facto “easy” primary key for ages has been the auto-incrementing integer. Upon insertion of a new record, the database simply increments a counter for the table and uses the new value for the primary key of the inserted ...
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SOA and REST with Grails

I discussed on my previous article about REST and how to leverage RESTful web services on Grails platform. We will further discuss Grails on SOA & REST and try to visualize architecture in details. REST and SOA are different a ...
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10 Common Mistakes Java Developers Make when Writing SQL

Java developers mix object-oriented thinking with imperative thinking, depending on their levels of:Skill (anyone can code imperatively) Dogma (some use the “Pattern-Pattern”, i.e. the pattern of applying patterns everywhere ...
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Jersey Client: Testing external calls

  Jim and I have been doing a bit of work over the last week which involved calling neo4j’s HA status URI to check whether or not an instance was a master/slave and we’ve been using jersey-client.   The code looked r ...
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Why REST is so important

This post is dedicated to REST, an architectural style of shaping webservices and the most misunderstood concept in the history of IT. This post is addressed to you who is designing webservice apis not being fully aware what REST ...
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Securing HTTP-based APIs With Signatures

I work at EMC on a platform on top of which SaaS solutions can be built. This platform has a RESTful HTTP-based API, just like a growing number of other applications. With development frameworks like JAX-RS, it’s relatively easy ...
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