BUILD AND RELEASE MANAGEMENT

Parent POM (Maven)

퇽회 Definition

A Parent POM is a special configuration file in Apache Maven that allows you to share common settings, dependencies, and configurations across multiple projects (modules).

It helps in centralizing project configuration and avoiding duplication.

퇽훹 Why Use Parent POM?

Avoid repeating the same configurations
Maintain consistency across projects
Simplify dependency and plugin management
Easier maintenance for large projects

퇽훹 Key Features

1. Centralized Dependency Management

Define dependency versions once and reuse in all child projects.

2. Plugin Management

Common plugins (compiler, testing tools) can be configured in one place.

3. Common Properties

Set shared values like Java version, encoding, etc.

퇽훹 Structure of Parent POM

<project>
    <modelVersion>4.0.0</modelVersion>

    <groupId>com.example</groupId>
    <artifactId>parent-project</artifactId>
    <version>1.0</version>
    <packaging>pom</packaging>

    <modules>
        <module>module1</module>
        <module>module2</module>
    </modules>

    <dependencyManagement>
        <dependencies>
            <dependency>
                <groupId>org.springframework</groupId>
                <artifactId>spring-core</artifactId>
                <version>5.3.0</version>
            </dependency>
        </dependencies>
    </dependencyManagement>
</project>

퇽훹 Child POM Configuration

<parent>
    <groupId>com.example</groupId>
    <artifactId>parent-project</artifactId>
    <version>1.0</version>
</parent>

Ⅱ Child projects inherit configurations from the parent.

퇽훹 Advantages

Reduces duplication
Ensures consistency
Easier updates (change once, reflect everywhere)
Supports multi-module projects

퇽훹 Real-Time Example

In a company project:

Parent POM defines dependencies and plugins
Child modules (UI, Backend, API) inherit them

퇽훹 When to Use

Large enterprise applications
Multi-module projects
Projects requiring standardization