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DevOps Equals DevOps Principles Plus DevOps Practices

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Successful, long-lasting movement have a clear manifesto outlining goals and principles.   Many DevOps adopters may not be aware of the DevOps Manifesto (created by Jez Humble @jezhumble)  nor how successful DevOps requires keeping a clear focus on principles, practices, and value (instead of infrastructure tooling. DevOps Principles DevOps value is derived in the core principles that started the movement: ...

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Getting Started with Apache Cassandra and Java (Part I)

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On this page, you’ll learn just enough to get started with NoSQL Apache Cassandra and Java, including how to install, try out some basic commands and what to do next. Requirements To follow this tutorial, you should already have a running Cassandra instance, and have gone through the 10 minute walkthrough here: http://planetcassandra.org/create-a-keyspace-and-table/. If you’ve already reviewed part I, be ...

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Gradle Goodness: Using CopySpec with Tasks

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To define a Copy task we specify the files we want to copy and to which directory. This definition is a CopySpec instance. It contains the rules that defines what we want to copy. The archive tasks Jar, Zip and Tar also use a CopySpec instance. When we create a task of type Copy we get a task object that ...

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Gradle Goodness: Using and Working with Gradle Version

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To get the current Gradle version we can use the gradleVersion property of the Gradle object. This returns a string value we can use for displaying the values. If we want to compare Gradle versions we can use the GradleVersion object. With this class we can get the current version, but we can also compare Gradle versions. This can be ...

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What is Product Management?

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Summary Product management is a multi-faceted, complex discipline that can be difficult to grasp and hard to master. This post shares my take on what product management is and what it takes to work as an effective product manager and product owner. It presents a product management framework that helps you define specific product roles and identify gaps in your ...

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Some Sentences about Java

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There is nothing new in this article. I just collected some trivial statements which may not be trivial for some of the junior programmers programmers. Boring old stuff. If you happen all of these things you know more about Java than the average house wife. I do not know if there is point to know all of these. You can ...

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JPA Entity Graphs

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One of the latest features in JPA 2.1 is the ability to specify fetch plans using Entity Graphs. This is useful since it allows you to customise the data that is retrieved with a query or find operation. When working with mid to large size applications is common to display data from the same entity in different and many ways. ...

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Android Tips: On/Off Toggle

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When we need to give to users of our apps the ability to switch on/off a given feature, we automatically think of check boxes, toggle buttons or switches: These widgets are available to us out-of-the-box, but then we are constrained to a particular look & feel, which may or may not be what we want in our app. We could ...

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How to get rid of focus highlighting in JavaFX

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Today I was asked if I know a way to get rid of the focus-highlighting of JavaFX controls (respectively buttons):                   Most posts and tips regarding this issue suggest to add: .button:focused { -fx-focus-color: transparent; } But with this style, a glow like this is still left: To get rid of this ...

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