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Status

This RFC is currently in the DRAFT state. Nothing in this RFC has been agreed or confirmed.

Contents

Introduction

The next generation Project Object Model to be used by Maven 5.0+ 

Overview

TODO write this up... I'm just dumping stuff I have done on the mail thread here to make it easier to collaborate:

<project modelVersion="5.0.0" [groupId="..."] artifactId="..." [version="..."] packaging="...">
  [<parent groupId="..." artifactId="..." [version="..."] [relativePath="...']/>

  [<mixin groupId="..." artifactId="..." [version="..."]/>]
  [<mixin groupId="..." artifactId="..." [version="..."]/>]
  ...
  [<mixin groupId="..." artifactId="..." [version="..."]/>]

  [<lifecycle id="..." mode="override|inherit">
    <phase id="..." [after="..." | before="..."]/>
    <phase id="..." [after="..." | before="..."]/>
    ...
    <phase id="..." [after="..." | before="..."]/>

  </lifecycle>]
  [<lifecycle id="...">
    ...
  </lifecycle>]
  ...
  [<lifecycle id="...">
    ...
  </lifecycle>]

  [<scope id="compile" [mode="override|inherit"]>
    <dependency groupId="..." artifactId="..." [platformId="..."] version="..." [classifier="..."] type="..."/> <!-- type is mandatory-->
    <dependency groupId="..." artifactId="..." [platformId="..."] version="..." [classifier="..."] type="..."/>
    ...
    <dependency groupId="..." artifactId="..." [platformId="..."] version="..." [classifier="..."] type="..."/>
  </scope>]
  [<scope id="...">
    ...
  </scope>]
  ...
  [<scope id="...">
    ...
  </scope>]

  [<plugins [mode="override|inherit"]>
    <!-- this is what pluginManagement was -->
  </plugins>]

  [<bindings [mode="override|inherit"]>
    <!-- this is what plugins was, we make explicit here that this is the binding of executions into the lifecycles -->
  </bindings>]

  [<platform id="..." [mode="override|inherit"]>
    <activation>
      <!-- define how we determine that this platform can be built in the current environment -->
    </activation>
    <!-- allow platform specific mixins -->
    [<mixin groupId="..." artifactId="..." [version="..."]/>]
    <!-- allow platform specific lifecycles -->
    [<lifecycle id="...">
      ...
    </lifecycle>]

    <!-- allow platform specific dependencies -->
    [<scope>
      ...
    </scope>]

    <!-- allow platform specific bindings... but plugin management is from the root only -->
    [<bindings>
      ...
    </bindings>]

    <!-- allow most of the other root tags except platform and packaging and deployment config -->
  </platform>]
  [<platform id="...">
    ...
  </platform>]
  ...
  [<platform id="...">
    ...
  </platform>]

  <!-- packaging is only allowed in poms with an id of "parent" or "mixin". It allows a parent/mixin to be used by different packaging ids and define specialized defaults -->
  [<packaging id="...">
    [<mixin groupId="..." artifactId="..." [version="..."]/>]
    <!-- allow platform specific lifecycles -->
    [<lifecycle id="...">
      ...
    </lifecycle>]

    <!-- allow platform specific dependencies -->
    [<scope>
      ...
    </scope>]

    <!-- allow platform specific bindings... but plugin management is from the root only -->
    [<bindings>
      ...
    </bindings>]

    <!-- allow most of the other root tags except platform and packaging and deployment config -->
  </packaging>]
  [<packaging id="...">
    ...
  </packaging>]
  ...
  [<packaging id="...">
    ...
  </packaging>]

  <!-- unsure if we still need profiles -->
  <!-- perhaps we still need properties -->
  <!-- TBD deployment config, repositories, etc -->

</project>
 
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