Mix TomEE embedded and Angular 2 with Maven

Since months a typical web application is a JAX-RS for the server-side and a javascript on the client-side.

This powerful architecture can sometimes reveal some challenges in the build pipeline.

However today it is not that hard to mix both frontend and backend build tools to get a single build pipeline easily integrable in a continuous integration solution.

To illustrate that we’ll digg into how to create an Angular 2 application packaged with Maven.

Customize your TomEE instance with javascript and maven

TomEE Maven plugin got recently a new feature allowing to use javascript (or groovy) to customize the TomEE instance you build using tomee:build goal.

Let’s see why and how to use this feature…

JPA + Java8 Stream = paginated findAll()

For batch tasks it is quite common to need to browse a full table. Depending the table it can be done in memory without thinking much or it can be too big and needs pagination.

A common solution was to use a kind of PageResult object which was representing the current page and its index and let the client/caller iterating over PageResults.

With java 8 streams the API can be more concise and efficient.