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Lambdas for Fluent and Stable APIs

A few weeks ago I wrote an introduction on Java 8 lambdas. In this introduction I explained what a lambda is and how to use them in conjunction with the new Stream API, that is also ...
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ID Lists Aren’t the Best Solution for the N+1 Problem

In their eternal attempts to circumvent the N+1 problem, Hibernate users often resort to IN predicates with ID lists. In this post, we’ll see how those users might just be replacing ...
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Customization in Saas using Plug and Play Architecture

There exists a lot of design patterns, architectures and design concepts that can be applied to technical aspects of implementing a product. For eg., we have MVC architecture that isolates ...
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Throttling Task Submission with a BlockingExecutor

The JDK’s java.util.concurrent.ThreadPoolExecutor allows you to submit tasks to a thread pool and uses a BlockingQueue to hold submitted tasks. If you have thousands of tasks ...
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Simple CRUD using Servlet 3.0, Redis/Jedis and CDI – Part 2

In this post we will focus on CDI and Servlet 3.0. You can see part 1 here. Let’s start with CDI. When I started writing the post that originated this serie, I was not thinking in ...
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Cloud based deployment pipeline

Cloud based development tools are continuing to improve thanks to the power of new browser technologies and cloud services such as github and Amazon Web Services. The full deployment ...
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Multi-tier application + database deadlock or why databases aren’t queues (part1)

Databases aren’t queues. And despite the ubiquitous presence of queuing technology out there (ActiveMQ, MSMQ, MSSQL Service Broker, Oracle Advanced Queuing) there are plenty of ...
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Too Many Parameters in Java Methods, Part 8: Tooling

The first seven posts of my series of dealing with too many parameters expected in Java methods focused on alternative approaches to reduce the number of parameters a method or constructor ...
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Announcing EAXY: Making XML easier in Java

XML libraries in Java is a minefield. The amount of code required to manipulate and read XML is staggering, the risk of getting class path problems with different libraries is substantial ...
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Hibernate Facts: Equals and HashCode

Every Java object inherits the equals and hashCode methods, yet they are useful only for Value objects, being of no use for stateless behavior oriented objects. While comparing references ...
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