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Difference between revisions of "EclipseLink/DesignDocs/384399"

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Present any concepts relevant to the feature.
 
Present any concepts relevant to the feature.
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'''Package Splitting'''
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This is when classes from the same package are distributed among different bundles.  This is not compatible with OSGi, an therefore is not something that we can do.
  
 
== Requirements ==
 
== Requirements ==

Revision as of 10:17, 6 July 2012

Design Specification: MOXy Footprint Reduction

ER 384399

Document History

Date Author Version Description & Notes
2012/07/05 Blaise Doughan Work In Progress

Project overview

Problem

The install footprint is currently preventing MOXy from being bundled with other software and used on mobile platforms.

XML Binding Install Footprint (EclipseLink 2.4)

Bundle Size
org.eclipse.persistence.moxy_2.4.0.v20120608-r11652.jar 455 KB
org.eclipse.persistence.asm_3.3.1.v201206041142.jar 271 KB
org.eclipse.persistence.core_2.4.0.v20120608-r11652.jar 4711 KB
5437 KB

JSON Binding Install Footprint (EclipseLink 2.4)

Bundle Size
org.eclipse.persistence.moxy_2.4.0.v20120608-r11652.jar 455 KB
org.eclipse.persistence.asm_3.3.1.v201206041142.jar 271 KB
org.eclipse.persistence.core_2.4.0.v20120608-r11652.jar 4711 KB
org.eclipse.persistence.antlr_3.2.0.v201206041011.jar 190 KB
5627 KB

Goals

  • Reduce the install footprint to 1 MB (from 5.4 MB)
  • Be compatible with Project Jigsaw

Concepts

Present any concepts relevant to the feature.

Package Splitting

This is when classes from the same package are distributed among different bundles. This is not compatible with OSGi, an therefore is not something that we can do.

Requirements

The following sections will expand the goals of this project into more concrete requirements.

Design Constraints

All bundles must remain binary compatible except the OXM aspects of org.eclipse.persistence.core.

Design / Functionality

Bundle Changes

New Bundle - org.eclipse.persistence.micro

This bundle will include the all the common classes to both MOXy and JPA.

Modify Bundles - org.eclipse.persistence.moxy & org.eclipse.persistence.core

The OXM classes from core will be moved to MOXy.

Testing

API

GUI

N/A

Config files

N/A

Documentation

The following items will need to be documented:

  • What the binary incompatibilities are (if any).
  • How to migrate to the new release.

Open Issues

This section lists the open issues that are still pending that must be decided prior to fully implementing this project's requirements.

Issue # Owner Description / Notes
1 Peter/Doug Does the implementation of this feature require us to bump the version number to 3.0?

Decisions

This section lists decisions made. These are intended to document the resolution of open issues or constraints added to the project that are important.

Issue # Description / Notes Decision

Future Considerations

During the research for this project the following items were identified as out of scope but are captured here as potential future enhancements. If agreed upon during the review process these should be logged in the bug system.

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