Home » Author Archives: Alexis Lopez

Author Archives: Alexis Lopez

Alexis Lopez
Java Lover, certified as Java Programmer, Mobile Application Developer and Web Component Developer.

Using MySQL autoincrement PK column in ADF Entity PK attribute

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Hello all. Continuing with the ADF + MySQL workaround series, today we are going to see what we need to do in order to use MySQL PK autoincrement columns with our ADF Entities PK attributes. If we were using Oracle database, we would use the oracle.jbo.domain.DBSequence along with a sequence and a trigger in order to do that out-of-the-box. For simplicity, we ...

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Configuring MySQL for ADF development

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Hi all. Today I’m going to show you how to configure MySQL database for Oracle ADF development. IMHO when you are using ADF with other databases rather than Oracle DB you won’t be able to use the full power of Oracle ADF and sometimes you’ll find yourself looking for workarounds in order to achieve some behavior that with Oracle DB ...

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Glassfish plugin for JDeveloper 11gR2

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As some of you already know, ADF Essentials is a great framework for building web applications using java and it is free to develop and free to deploy. You deploy ADF Essentials applications on Glassfish (3.1+) server. Nevertheless, JDeveloper does not come with an embedded Glassfish server but with an embedded Weblogic server. In this post, we are going to ...

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Iterator Pattern and Java

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Hello all, in this post we’ll be checking on the Iterator Pattern. A design pattern that I know many of you have already used, but maybe you didn’t realize it was pattern or didn’t know its great value. According to the book Head First Design: The Iterator Pattern provides a way to access the elements of an aggregate object sequentially ...

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Java 7: File Filtering using NIO.2 – Part 3

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Hello all. This is Part 3 of the File Filtering using NIO.2 series. For those of you who haven’t read Part 1 or Part 2, here’s a recap. NIO.2 is a new API for I/O operations included in the JDK since Java 7. With this new API, you can perform the same operations performed with java.io plus a lot of great functionalities such ...

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Java 7: File Filtering using NIO.2 – Part 2

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Hello all. This is Part 2 of the File Filtering using NIO.2 series. For those of you who haven’t read Part 1, here’s a recap. NIO.2 is a new API for I/O operations included in the JDK since Java 7. With this new API, you can perform the same operations performed with java.io plus a lot of great functionalities such as: Accessing ...

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Java 7: File Filtering using NIO.2 – Part 1

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NIO.2 is a new API for I/O operations included in the JDK since Java 7. With this new API, you can perform the same operations performed with java.io plus a lot of great functionalities such as: Accessing file metadata and watching for directory changes, among others. Obviously, the java.io package is not going to disappear because of backward compatibility, but ...

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Java 7: Meet the Fork/Join Framework

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JSR-166(y) is the official name of this new feature which is included in Java 7. If you notice there is a ‘y’ in the name, this is because JSR-166 (Concurrency Utilities) is being added since Java 5, but it wont stop here as there are already plans to add new classes in Java 8 under the JSR-166(e). Check this page ...

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Observer Design Pattern in Java

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‘Don’t call us, we’ll call you’… that’s the Hollywood OO (Object Oriented) Principle and it’s exactly what the Observer pattern is about. In this post we’ll review this pattern and how it is used in Java, you may already have used it without knowing… According to Head First Design Patterns book, this is the definition of the Observer pattern: Defines ...

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JavaME: Google Static Maps API

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Whether you need a map for your location based application or just for fun, you can use the easiest way ever: Google Static Maps API. In this post, we are going to see how you can get a Map as an Image from a latitude and longitude point. The latitude and longitude can be obtained using Location API which we ...

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