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It’s About Confidentiality and Integrity (not so much Availability)

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Everyone knows the C-I-A triad for information security: security is about protecting the Confidentiality, Integrity and Availability of systems and data. In a recent post, Warren Axelrod argues that Availability is the most important of these factors for security, more important than Integrity and Confidentiality – that C-I-A should be A-I-C. I don’t agree. Protecting the Confidentiality of customer data ...

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Plan B? That is Plan N … Nothing. Jigsaw follows in 2015

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What a day. When the typical European is winding down people in the States are starting with coffee. This is why I had a good night sleep over the recent news by Mark Reinhold. In a post titled ‘ Project Jigsaw: Late for the train‘ he proposes to ‘defer Project Jigsaw to the next release, Java 9.’ With the modularization ...

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Java Lock Implementations

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We all use 3rd party libraries as a normal part of development. Generally, we have no control over their internals. The libraries provided with the JDK are a typical example. Many of these libraries employ locks to manage contention. JDK locks come with two implementations. One uses atomic CAS style instructions to manage the claim process. CAS instructions tend to ...

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Database Usage Practices

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After a long period of intense thinking, research and brainstorming sessions, I have finally made up my mind with few best practices that can be considered while using a database. All database servers today has capabilities to optimize the queries sent to the server, ironically, they lack the capability to alter query in such a way that the throughput is ...

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Logback: Logging revisited

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Hi, I am back again with my rant about logging as an inherent part of any application design and development. I am a big fan of strong basics, and in my humble opinion logging is one of those often overlooked but basic critical element of any enterprise grade application. I have written about this before here. This is not really ...

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JUnit, Logback, Maven with Spring 3

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In this series we have already learnt to set up a basic Spring MVC application and learnt how to handle forms in Spring MVC. Now it is time to take on some more involved topics. However, before we venture into deeper waters, let’s get some basics set up. Unit testing I am no TDD evangelist. There I said it. I ...

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Teaser: Bare-knuckle SOA

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I’m working on this idea, and I don’t know if it appeals to you guys. I’d like your input on whether this is something to explore further. Here’s the deal: I’ve encountered teams who, when working with SOA technologies have been dragged into the mud by the sheer complexity of their tools. I’ve only seen this in Java, but I’ve ...

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Read-only ViewObject and Declarative SQL mode

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Introduction The declarative SQL mode is considered to be one of the most valuable advantages of the entity-based view objects. In this mode the VO’s SQL is generated at runtime depending on the attributes showed in UI. For example, if some page contains a table with only two columns EmployeeId and FirstName, then the query will be generated as “select ...

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JSF Event-based communication: New-school approach

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In the last post, we learnt event-based communication on basis of Observer / Event Listener and Mediator patterns. Due to their shortcomings I would like to show more efficient ways for event-based communication. We will start with Google Guava EventBus and end up with CDI (Contexts and Dependency Injection for the Java EE platform). Guava EventBus Google Guava library has ...

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