Core Java
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Avoiding Many If Blocks For Validation Checking
There are cases that we want to validate input data before we send them to business logic layer for processing, computations…
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Keyword extraction and similarity calculation among textual content
Background Web applications are becoming smarter. Gone are the days when to avail a service from a website, user had…
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Clean JUnit Throwable-Tests with Java 8 Lambdas
Recently I was involved in a short online discussion on twitter and google+ which concerned the question why the arrival…
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JSR 303 loading messages from an I18N property file
Overview This article will illustrate how to adapt the JSR 303 validation API to load messages from an I18n property…
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Developing Eclipse plugins
Recently I started working with a team on an Eclipse plugin. The team had developed an awesome plugin that does…
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A JUnit Rule to Run a Test in Its Own Thread
Occasionally it would be helpful to be able to run a JUnit test in a separate thread. In particular when…
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Template Method Pattern Example Using Java Generics
If you find that a lot of your routines are exactly the same except for certain sections, you might want…
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Grouping, sampling and batching – custom collectors in Java 8
Continuing first article, this time we will write some more useful custom collectors: for grouping by given criteria, sampling input, batching…
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Java: Determining the status of data import using kill signals
A few weeks ago I was working on the initial import of ~ 60 million bits of data into Neo4j…
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