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Android (14)
- Writing Styles and Themes on Android by: micha kops
  December 3, 2011, 17:12
  Using reusable styles and themes to modify an Android application's look is really easy and helps to not violate thy DRY (don't repeat yourself) principle by…
- Managing Background Tasks on Android using the Alarm Manager by: micha kops
  November 27, 2011, 19:34
  In today's tutorial we're going to take a look on how to handle periodically scheduled tasks on our Android device by using BroadcastReceivers, Services and…
- Android Widget Tutorial: Creating a screen-lock Widget in a few steps by: micha kops
  October 6, 2011, 18:53
  In today's Android tutorial we're going to take a look at Android's Widget API and how to make a widget interact with a service using intents. We're going…
- Playing around with the Android Animation Framework by: micha kops
  September 27, 2010, 19:30
  Animations add some spice to our Android applications and the offered animation framework makes it easy to create custom animations and tweens. So lets…
- How to create an Android App using Google's App Inventor by: micha kops
  August 4, 2010, 19:26
  Today we're going to take a look at Google's App Inventor feature that offers programming-novices a nice possibility to enter the fabulous world of Android App…
- Sensor Fun: Location Based Services and GPS for Android by: micha kops
  May 30, 2010, 14:14
  The Android SDK offers a nice API to receive information about available providers for location based services and get the current location and coordinates. …
- Creating a simple Gesture App with Android by: micha kops
  May 14, 2010, 06:25
  The integration of gestures into your android app adds some nice functionality and is made very easy using Google's GestureBuilder application and the…
- Playing around with QR Codes by: micha kops
  May 11, 2010, 15:47
  Sometimes QR codes are a nice way to distribute information like calendar events, contact information, e-mail, geo-locations or internet addresses. In the…
- Sensor Fun: Creating a simple audio recorder/player by: micha kops
  May 2, 2010, 17:36
  Sound recording and playback is really simple using the MediaRecorder and MediaPlayer classes .. see the example below .. Sample App: First some…
- Sensor Fun: Using the accelerometer on Android by: micha kops
  April 27, 2010, 18:18
  Here is an example on how to use the accelerometer in your Android application. If you want to simulate the acceleration on the emulator I highly recommend the…
- First steps on Android: Creating a simple Todo App by: micha kops
  April 26, 2010, 18:48
  In this tutorial we are going to build a simple todo app that is able to store simple todos in a database. The user is able to add new todos or delete old ones…
- Signing APK with the Maven-Jar-Signer Plugin by: micha kops
  April 17, 2010, 19:10
  There is a nice Maven plugin helping you signing your Android app - the Maven Jar Signer Plugin. If you want to learn more about Maven integration in an…
- How to integrate Android Development Tools and Maven by: micha kops
  April 2, 2010, 15:24
  With the Maven Android Plugin it is possible to build and deploy/undeploy your android app and start/stop the emulator - if you're used to maven you won't be…
- Android Gestures by: admin
  March 21, 2010, 09:47
  Since version 1.6 Android offers a library for recognition and handling of new gestures using a touch display. With the gesture builder it is possible to…
Confluence (9)
- Confluence User Profile Mobile vCard Plugin released by: micha kops
  June 18, 2011, 14:19
  I've released a new plugin for the popular Confluence Wiki that extends the user profile with new tab that displays the user's vcard as a QR code. This…
- Confluence Social Comments Plugin by: micha kops
  May 30, 2011, 20:45
  I have created a new, free plugin for Confluence, the popular enterprise wiki. The plugin allows you to notify users of ongoing discussions in comments on a…
- How to create a Confluence SOAP Component in 5 Minutes by: micha kops
  October 24, 2010, 17:45
  You're using the popular Confluence wiki? You're using its RPC/SOAP API and missing a function you really need? Just extend the capabilities of the Confluence…
- How to create a Template Bundle Plugin in Confluence by: micha kops
  July 12, 2010, 19:37
  Since Confluence 3.2. there is a new plugin module type that allows you to deploy templates in a bundle via the plugin API. In addition it is possible to…
- Extending the Confluence Search Index by: micha kops
  May 23, 2010, 10:14
  Developing plugins for the Confluence Wiki a developer sometimes needs to save additional metadata to a page object using Bandana or the ContentPropertyManager.…
- Snippets: Getting License Information from the Confluence API by: micha kops
  May 6, 2010, 15:05
  Sometimes one needs to look up license details of a running Confluence system .. perhaps for creating a commercial plugin or to display recommendations…
- How to build a Confluence Macro Plugin by: micha kops
  April 13, 2010, 19:44
  The goal is to build a small macro plugin deployable via the Confluence plugin API rendering some spaces. Please note that I am going to build the plugin…
- How to build a Confluence SOAP client in 5 minutes by: micha kops
  March 28, 2010, 13:51
  In this tutorial we are going to build a SOAP client for the popular Confluence Wiki in about five minutes. The client is going to receive rendered HTML Markup…
- Confluence Developer Instance Quick Setup by: micha kops
  March 26, 2010, 23:18
  This short tutorial shows how to set-up a developer instance of the popular Confluence Wiki from Atlassian in a few minutes. It's a prerequisite for a few…
Development (8)
- Creating a LDAP server for your development environment in 5 minutes by: micha kops
  June 13, 2011, 10:51
  I am currently working on a plugin that needs to receive some information from an LDAP/Active Directory using JNDI. That's why I needed to set up a directory…
- A look at Google's Protocol Buffers by: micha kops
  July 6, 2010, 19:45
  Protocol Buffers are a serialization format developed by Google- you might ask if another IDL is really needed here - is Google barking at the wrong tree? But…
- Java Server Faces/JSF 2 Tutorial - Step 1: Project setup, Maven and the first Facelet by: micha kops
  June 5, 2010, 21:17
  In this short tutorial we are going to build a Java Server Faces Web-Application using JSF2.0, Facelets, Maven and Hibernate as ORM Mapper. The goals for…
- Coding Katas with Maven by: micha kops
  April 15, 2010, 19:21
  Searching for nice coding kata sites I found this one - codingkata.org - I really liked because of the quick start and nice maven integration. Just head…
- Named Queries in Grails 1.2 by: micha kops
  April 6, 2010, 19:51
  They built a nice new feature in Grails 1.2 called "named queries". Named queries can be defined in a domain class as static properties and support the…
- Manage dependencies with the Maven Dependency Plugin by: micha kops
  April 4, 2010, 11:13
  In a maven project there are lots of dependencies to handle - often one wants to know which version of a software comes from. The solution to this problem…
- How to build a Confluence SOAP client in 5 minutes by: micha kops
  March 28, 2010, 13:51
  In this tutorial we are going to build a SOAP client for the popular Confluence Wiki in about five minutes. The client is going to receive rendered HTML Markup…
- Confluence Developer Instance Quick Setup by: micha kops
  March 26, 2010, 23:18
  This short tutorial shows how to set-up a developer instance of the popular Confluence Wiki from Atlassian in a few minutes. It's a prerequisite for a few…
Groovy/Grails (3)
- Integrating Groovy in your Maven builds using GMaven by: micha kops
  July 12, 2011, 20:11
  Often ant tasks are used in Maven builds but wouldn't it be more attractive to integrate the Groovy language into our build process? GMaven is the answers…
- Named Queries in Grails 1.2 by: micha kops
  April 6, 2010, 19:51
  They built a nice new feature in Grails 1.2 called "named queries". Named queries can be defined in a domain class as static properties and support the…
- Dependency management in Grails 1.2 by: micha kops
  March 23, 2010, 22:19
  Sometimes I get the impression that there are many Maven haters in the Groovy/Grails community - now with version 1.2 of the Grails framework they are able to…
Java (44)
- JPA Persistence and Lucene Indexing combined in Hibernate Search by: micha kops
  February 5, 2012, 12:54
  Often we're writing an application that has to handle entities that - on the one side need to be persisted in a relational database using standards like the…
- Neo4j Graph Database Tutorial: How to build a Route Planner and other Examples by: micha kops
  January 20, 2012, 20:09
  Often in the life of developer's life there is a scenario where using a relational database tends to get complicated or sometimes even slow - especially when…
- Create Mobile Websites using Java Server Faces and PrimeFaces Mobile by: micha kops
  January 8, 2012, 19:03
  The more smartphones and tablets are sold the bigger the need for a mobile version of a modern website. PrimeFaces Mobile helps us developers here and allows…
- Writing Styles and Themes on Android by: micha kops
  December 3, 2011, 17:12
  Using reusable styles and themes to modify an Android application's look is really easy and helps to not violate thy DRY (don't repeat yourself) principle by…
- Managing Background Tasks on Android using the Alarm Manager by: micha kops
  November 27, 2011, 19:34
  In today's tutorial we're going to take a look on how to handle periodically scheduled tasks on our Android device by using BroadcastReceivers, Services and…
- Finding Memory Leaks using Eclipse and the MemoryAnalyzer Plugin by: micha kops
  November 2, 2011, 20:49
  The MemoryAnalyzer Plugin for Eclipse allows us to quickly analyze heap dumps from a virtual machine and search for memory leaks. In the following tutorial…
- Testing RESTful Web Services made easy using the REST-assured Framework by: micha kops
  October 23, 2011, 16:59
  There are many frameworks out there to facilitate testing RESTful webservices but there is one framework I'd like to acquaint you with my favourite framework…
- Maven Tomcat Plugin: Adding Authentication to an Embedded Tomcat by: micha kops
  October 12, 2011, 19:21
  The Tomcat Maven Plugin not only allows us to deploy our mavenized application to an existing Tomcat server but also to run our web application with an…
- Android Widget Tutorial: Creating a screen-lock Widget in a few steps by: micha kops
  October 6, 2011, 18:53
  In today's Android tutorial we're going to take a look at Android's Widget API and how to make a widget interact with a service using intents. We're going…
- Java EE 6 Development using the Maven Embedded GlassFish Plugin by: micha kops
  September 20, 2011, 19:32
  Today we're going to take a look at the Maven Embedded GlassFish Plugin and how it allows us quick creation of GlassFish server instances in no time and Java…
- REST-assured vs Jersey-Test-Framework: Testing your RESTful Web-Services by: micha kops
  September 5, 2011, 19:15
  Today we're going to take a look at two specific frameworks that enables you to efficiently test your REST-ful services: On the one side there is the framework…
- Screenscraping made easy using jsoup and Maven by: micha kops
  August 30, 2011, 20:03
  Sometimes in a developer's life there is no clean API available to gather information from a web application .. no SOAP, no XML-RPC and no REST .. just a…
- Contract-First Web-Services using JAX-WS, JAX-B, Maven and Eclipse by: micha kops
  August 23, 2011, 19:54
  Using the contract-first approach to define a web service offers some advantages in contrast to the code-first approach. In the following tutorial we're…
- Java EE 6, GlassFish and the Interceptor API by: micha kops
  August 17, 2011, 19:08
  Aspect oriented programming and the definition of cross-cutting-concerns is made easy in Java EE 6 using interceptors. In the following tutorial we're…
- Creating Portlets using Java Server Faces 2 and Liferay by: micha kops
  July 19, 2011, 20:14
  Portlets are a common technology to create plug&play components for modern web applications and are specified by the Java Community Process in several…
- Integrating Groovy in your Maven builds using GMaven by: micha kops
  July 12, 2011, 20:11
  Often ant tasks are used in Maven builds but wouldn't it be more attractive to integrate the Groovy language into our build process? GMaven is the answers…
- Creating a LDAP server for your development environment in 5 minutes by: micha kops
  June 13, 2011, 10:51
  I am currently working on a plugin that needs to receive some information from an LDAP/Active Directory using JNDI. That's why I needed to set up a directory…
- Message Driven Beans in Java EE 6 by: micha kops
  June 5, 2011, 17:37
  Message Driven Beans are no new concept due to the fact that they exist since EJB 2.0 but in Java EE 6 and the EJB 3.0 specification it is even more fun to…
- Oh JBehave, Baby! Behaviour Driven Development using JBehave by: micha kops
  May 31, 2011, 20:49
  Behaviour Driven Development is the keyword when we're talking about test scenarios written in an ubiquitous language, strong interaction with stakeholders,…
- SCJP/OCPJP Exam Preparation: Pitfalls to avoid by: micha kops
  April 25, 2011, 18:37
  Last year I passed the exam for the "Oracle Certified Professional Java Programmer"successfully and wanted to share my exam preparation notes about common…
- Mocking, Stubbing and Test Spying using the Mockito Framework and PowerMock by: micha kops
  March 27, 2011, 11:26
  Today we're going to take a look at the Mockito framework that not only does sound like my favourite summer cocktail but also offers nice testing, mocking/stu…
- Creating a sample Java EE 6 Blog Application with JPA, EJB, CDI, JSF and Primefaces on GlassFish by: micha kops
  February 8, 2011, 21:35
  Java EE 6 is out and it indeed offers an interesting stack of technologies. So in today's tutorial we are going to build a small sample web application that…
- Enterprise Java Bean / EJB 3.1 Testing using Maven and embedded Glassfish by: micha kops
  January 1, 2011, 15:29
  Are you playing around with the shiny new 3.1 EJB API? Using Maven for your Java projects? Need an easy way to write and execute tests for your EJBs that…
- Bean Validation with JSR-303 and Hibernate Validator by: micha kops
  December 14, 2010, 21:25
  You want to add some validation logic to your Java beans? You want to achieve this with some shiny extendable annotations? Then give the Java Bean Validation…
- Creating a REST Client Step-by-Step using JAX-RS, JAX-B and Jersey by: micha kops
  November 25, 2010, 21:12
  Often in a developer's life there is a REST service to deal with and nowadays one wants a fast and clean solution to create a client for such a service. The…
- Using PrimeFaces to pimp up existing Java Server Faces / JSF 2 Applications by: micha kops
  November 14, 2010, 14:59
  In this tutorial we're going to modify an existing Java Server Faces / JSF 2 web application by adding rich UI components to the existing layout. Our tool…
- Object-relational Mapping using Java Persistence API / JPA 2 by: micha kops
  October 11, 2010, 19:54
  Today we're going to take a look at the world of object-relational Mapping and how it is done using the Java Persistence API by creating some basic examples,…
- Creating a SOAP Service using JAX-WS Annotations by: micha kops
  September 23, 2010, 19:52
  It is possible to create SOAP webservices with only a few lines of code using the JAX-WS annotations. In a productivity environment you might prefer using…
- How to create a simple Messaging Application using RabbitMQ 2 and Maven by: micha kops
  September 5, 2010, 17:44
  Having read an interesting comparison by Lindenlabs evaluating modern message broker systems like ActiveMQ, ApacheQpid and amongst others - RabbitMQ - I wanted…
- Spring 3, Maven and Annotation Based Configuration by: micha kops
  August 22, 2010, 20:11
  There is still the urban myth that using Spring IoC container without thousands lines of XML code isn't possible - so today we're taking a look at annotation…
- How to create a simple OSGi Web Application using Maven by: micha kops
  July 25, 2010, 08:33
  In this tutorial we will take a look at the development of a simple OSGi Web Application and what tools can save us some time. The Maven Bundle Plugin makes…
- Java Server Faces/JSF 2 Tutorial - Step 1: Project setup, Maven and the first Facelet by: micha kops
  June 5, 2010, 21:17
  In this short tutorial we are going to build a Java Server Faces Web-Application using JSF2.0, Facelets, Maven and Hibernate as ORM Mapper. The goals for…
- Playing around with QR Codes by: micha kops
  May 11, 2010, 15:47
  Sometimes QR codes are a nice way to distribute information like calendar events, contact information, e-mail, geo-locations or internet addresses. In the…
- Signing APK with the Maven-Jar-Signer Plugin by: micha kops
  April 17, 2010, 19:10
  There is a nice Maven plugin helping you signing your Android app - the Maven Jar Signer Plugin. If you want to learn more about Maven integration in an…
- How to build a Confluence Macro Plugin by: micha kops
  April 13, 2010, 19:44
  The goal is to build a small macro plugin deployable via the Confluence plugin API rendering some spaces. Please note that I am going to build the plugin…
- Create a SOAP client using the JAX-WS Maven Plugin by: micha kops
  April 8, 2010, 20:09
  Having written the article "How to build a Confluence SOAP client in 5 minutes" some readers asked me for some more information and help using the JAX-WS…
- Manage dependencies with the Maven Dependency Plugin by: micha kops
  April 4, 2010, 11:13
  In a maven project there are lots of dependencies to handle - often one wants to know which version of a software comes from. The solution to this problem…
- Snippet: Simple One-Minute IMAP Client by: micha kops
  April 3, 2010, 08:50
  Building a simple IMAP Client that displays the subject of the messages in the "inbox" Folder using Maven (I just like Maven). Steps: Create a new Maven…
- How to integrate Android Development Tools and Maven by: micha kops
  April 2, 2010, 15:24
  With the Maven Android Plugin it is possible to build and deploy/undeploy your android app and start/stop the emulator - if you're used to maven you won't be…
- How to build a Confluence SOAP client in 5 minutes by: micha kops
  March 28, 2010, 13:51
  In this tutorial we are going to build a SOAP client for the popular Confluence Wiki in about five minutes. The client is going to receive rendered HTML Markup…
- How to build a quick lucene search by: micha kops
  March 25, 2010, 21:51
  Helo - today I wanted to post a small tutorial for a small index and search operation using the Lucene indexer and Maven for the project setup. Create an…
- Review: "SCJP Sun Certified Programmer for Java 6 Study Guide" by: micha kops
  March 24, 2010, 20:16
  Short Facts: About 850 pages - heavy weight - use it for self defence! ;) Preparation material for the Sun Exam 310-065 (Sun Certified Java Programmer…
- A look at Maven 3 alpha by: micha kops
  March 22, 2010, 20:12
  We are all waiting for a stable release of Maven3 with following updates .. faster, more performant .. save us time building our software and some precious…
- How to add a local lib directory to Maven by: admin
  March 18, 2010, 14:14
  Sometimes there is a dependency not available at a remote repository and one is too lazy to set up a local maven repository - that's when one adds a directory…
Reading Corner (1)
Reading Corner
- Review: "SCJP Sun Certified Programmer for Java 6 Study Guide" by: micha kops
  March 24, 2010, 20:16
  Short Facts: About 850 pages - heavy weight - use it for self defence! ;) Preparation material for the Sun Exam 310-065 (Sun Certified Java Programmer…
Web Services (8)
- Testing RESTful Web Services made easy using the REST-assured Framework by: micha kops
  October 23, 2011, 16:59
  There are many frameworks out there to facilitate testing RESTful webservices but there is one framework I'd like to acquaint you with my favourite framework…
- REST-assured vs Jersey-Test-Framework: Testing your RESTful Web-Services by: micha kops
  September 5, 2011, 19:15
  Today we're going to take a look at two specific frameworks that enables you to efficiently test your REST-ful services: On the one side there is the framework…
- Contract-First Web-Services using JAX-WS, JAX-B, Maven and Eclipse by: micha kops
  August 23, 2011, 19:54
  Using the contract-first approach to define a web service offers some advantages in contrast to the code-first approach. In the following tutorial we're…
- Creating a REST Client Step-by-Step using JAX-RS, JAX-B and Jersey by: micha kops
  November 25, 2010, 21:12
  Often in a developer's life there is a REST service to deal with and nowadays one wants a fast and clean solution to create a client for such a service. The…
- How to create a Confluence SOAP Component in 5 Minutes by: micha kops
  October 24, 2010, 17:45
  You're using the popular Confluence wiki? You're using its RPC/SOAP API and missing a function you really need? Just extend the capabilities of the Confluence…
- Creating a SOAP Service using JAX-WS Annotations by: micha kops
  September 23, 2010, 19:52
  It is possible to create SOAP webservices with only a few lines of code using the JAX-WS annotations. In a productivity environment you might prefer using…
- Create a SOAP client using the JAX-WS Maven Plugin by: micha kops
  April 8, 2010, 20:09
  Having written the article "How to build a Confluence SOAP client in 5 minutes" some readers asked me for some more information and help using the JAX-WS…
- How to build a Confluence SOAP client in 5 minutes by: micha kops
  March 28, 2010, 13:51
  In this tutorial we are going to build a SOAP client for the popular Confluence Wiki in about five minutes. The client is going to receive rendered HTML Markup…
Apps (2)
- Confluence User Profile Mobile vCard Plugin released by: micha kops
  June 18, 2011, 14:19
  I've released a new plugin for the popular Confluence Wiki that extends the user profile with new tab that displays the user's vcard as a QR code. This…
- Confluence Social Comments Plugin by: micha kops
  May 30, 2011, 20:45
  I have created a new, free plugin for Confluence, the popular enterprise wiki. The plugin allows you to notify users of ongoing discussions in comments on a…
Snippet (4)
- Snippets: Getting License Information from the Confluence API by: micha kops
  May 6, 2010, 15:05
  Sometimes one needs to look up license details of a running Confluence system .. perhaps for creating a commercial plugin or to display recommendations…
- Sensor Fun: Creating a simple audio recorder/player by: micha kops
  May 2, 2010, 17:36
  Sound recording and playback is really simple using the MediaRecorder and MediaPlayer classes .. see the example below .. Sample App: First some…
- Sensor Fun: Using the accelerometer on Android by: micha kops
  April 27, 2010, 18:18
  Here is an example on how to use the accelerometer in your Android application. If you want to simulate the acceleration on the emulator I highly recommend the…
- Snippet: Simple One-Minute IMAP Client by: micha kops
  April 3, 2010, 08:50
  Building a simple IMAP Client that displays the subject of the messages in the "inbox" Folder using Maven (I just like Maven). Steps: Create a new Maven…
Enterprise (5)
- Neo4j Graph Database Tutorial: How to build a Route Planner and other Examples by: micha kops
  January 20, 2012, 20:09
  Often in the life of developer's life there is a scenario where using a relational database tends to get complicated or sometimes even slow - especially when…
- Java EE 6 Development using the Maven Embedded GlassFish Plugin by: micha kops
  September 20, 2011, 19:32
  Today we're going to take a look at the Maven Embedded GlassFish Plugin and how it allows us quick creation of GlassFish server instances in no time and Java…
- Contract-First Web-Services using JAX-WS, JAX-B, Maven and Eclipse by: micha kops
  August 23, 2011, 19:54
  Using the contract-first approach to define a web service offers some advantages in contrast to the code-first approach. In the following tutorial we're…
- Java EE 6, GlassFish and the Interceptor API by: micha kops
  August 17, 2011, 19:08
  Aspect oriented programming and the definition of cross-cutting-concerns is made easy in Java EE 6 using interceptors. In the following tutorial we're…
- Creating Portlets using Java Server Faces 2 and Liferay by: micha kops
  July 19, 2011, 20:14
  Portlets are a common technology to create plug&play components for modern web applications and are specified by the Java Community Process in several…

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