1. Maven & AEM

2. Pom
Project Object Model

3. What’s in a project
● Source code lives in src/main/java
● Test code lives in src/test/java
● Compiled class files live in target
● pom.xml lives at the root of the
project

4. What’s in a pom?
● Usually have a groupId, artifactId and version
● Can specify aggregated projects via modules
● Can specify a parent to inherit from
● Can specify dependencies
● Goals, plugins, resources, properties, developers, etc...
● Can specify a packaging type for the artifact

5. Project Identification
<groupId>com.project</groupId>
<artifactId>mclovin</artifactId>
<version>1.0.0-SNAPSHOT</version>

6. Aggregate projects with Modules
<modules>
<module>content</module>
<module>bundle</module>
</modules>

7. Inherit from parent poms
A
<groupId>com.project</groupId>
<artifactId>a</artifactId>
<version>1.0.0-SNAPSHOT</version>
B
<parent>
<groupId>com.project</groupId>
<artifactId>a</artifactId>
<version>1.0.0-SNAPSHOT</version>
</parent>
<artifactId>b</artifactId>
<version>2.0.0-SNAPSHOT</version>
Effective B
<!-- groupId is inherited -->
<groupId>com.project</groupId>
<artifactId>b</artifactId>
<version>2.0.0-SNAPSHOT</version>

8. Dependencies
<dependencies>
<dependency>
<groupId>...</groupId>
<artifactId>...</artifactId>
<version>...</version>
<scope>...</scope>
</dependency>
</dependencies>
Dependencies are exposed/included based on
the specified <scope>
provided
exposed at compile time, not included in
artifact
test
expose at test time, not included in artifact
compile
exposed at compile time, included in
artifact

9. Other properties
● Goals, plugins, resources, properties, developers, etc...
● Can specify a packaging type like pom, content-
package or bundle

10. What’s a bundle?
● A bundle is a special type of packaging for a project
using the maven-bundle-plugin
● Like a jar but with a manifest
● Manifest contains OSGi headers telling OSGi how to
use the bundle

11. How to use bundles?
● We use bundles for our Java logic
● They are separated based on function
Webdev
Design
Engineering
Team

12. Can we use other packing types?
content-package
uploading content with
embedded bundles
pom
Organizing the project and
setting up inheritance for
sub-poms

13. How does Java get to the Server
source code
OSGI bundle
Target
Content Package
.../install folder
Package Install

14. What’s OSGI?
● Defines how bundles run
● Hot swap bundles at run
time
● Web interface for service
configs and tools
(/system/console)
Operating System
Java Runtime Environment
OSGi
Services
Lifecycle
Bundles
Applications(AEM)

15. More Resources
● Intro to Poms
● Maven: The Complete Reference
● Maven and Vault (including embeddeds)