Generating Java Source Files with JavaPoet

Sat, 28 Feb 2015 00:00:00 +0100

For the most of us developers, generating Java source files is an occasionally happening task and we’re dealing with it e.g. when writing annotation processors, writing tools or interacting with meta-data files.

JavaPoet is a nice library to simplify such tasks, offering an intuitive fluent-builder API to generate source files in no time.

In the following tutorial I’d like to share a few examples by writing code generators with the help of this library.

Filtering Source Files using the Templating Maven Plugin

Tue, 03 Sep 2013 00:00:00 +0200

The Templating Maven Plugin looks useful if one needs to copy and to filter source files in a project e.g. to add property values from the build environment to a class.

For a short demonstration I’ve added the following short snippet.

Dependencies

Only one dependency needed .. simply add the following snippet to your pom.xml

<build>
  <plugins>
    <plugin>
      <groupId>org.codehaus.mojo</groupId>
      <artifactId>templating-maven-plugin</artifactId>
      <version>1.0-alpha-3</version>
      <executions>
        <execution>
          <id>filter-src</id>
          <goals>
            <goal>filter-sources</goal>
          </goals>
        </execution>
      </executions>
    </plugin>
  </plugins>
</build>

Source on Micha Kops' Tech Notes

Generating Java Source Files with JavaPoet

Filtering Source Files using the Templating Maven Plugin

Dependencies