EclipseLink/Development/Summit/Topics

EclipseLink Summit Topics

Welcome

Lead: Doug Clarke

• Introductions
• Logistics
• Goals & Expectations

Project Overview

• JPA - Peter Krogh
  • JPA 1.0, 2.0
  • Native API
• MOXy - Blaise Doughan
  • Key Concepts, benefits, and advanced features
  • Shared Models with JPA and MOXy
• SDO - Blaise Doughan
  • Key Concepts, benefits, and advanced features
  • Using JPA with SDO
• DBWS - Mike Norman
  • Key Concepts, benefits, and advanced features

Architecture Overview

• ORM Architetcture
  • Sessions
  • Connections/Datasources
  • Transaction Management
  • Cache
  • Metamodel: Project, Descriptor, Mapping, & Policies
  • Platforms: Database & Server

• MOXy Architecture
  • XML Context/Session

Mapping & Metamodel

Presenters: Guy & Blaise

• Mapping Types
• Mapping Options
  • JPA: annotations, orm.xml, EL annotations, eclispelink-orm.xml
  • Native: sessions.xml, deployment (project) xml
  • Hand coded (API)
• XML Processing using MOXy
  • Schema Validation
  • Schema Version & Backwards Compatibility
• JPA Metadata Processing

The Shared Cache

• Identity Management
• Cache Structure:
  • IdentityMaps
  • CacheKey
  • Locking
• Concurrency & Locking
• Invalidation
• Configuration Best Practices

Queries & Object Building

• Structure: Query Types, Calls, Statements
• Query Execution Path
  • JPA Query Processing
• Cache Usage
  • Cache Hits
  • Conforming
• Cloning
• Policies
  • Instantiation
  • Clone/Copy
• Query Caches: Named, Descriptor, JPQL Parse Cache
• Lazy Loading
  • ValueHolders: Query Based, UnitOfWork

Transactions: UnitOfWork

• UnitOfWork Basics
  • Change Tracking
  • ChangeSets
  • ChangeTracking
  • Commit/flush process
  • Merge
• RepeatabaleWriteUnitOfWork
  • FlushMode
• Session Events

WEDNESDAY

Documentation

Lead: Rick Sapir

• Current State
• Requirements Review
• Proposed Future Direction
• Challenges and Issues
• Roles of tech Writers and Developers

Tooling

Lead: Karen Butzke

• EclipseLink Workbench
• JDeveloper
• Dali
  • Generic JPA
  • EclipseLink JPA
  • Library Configuration
  • New In Helios
    • TBD
    • Canonical Model Generation

JPA 2.0 Metamodel & ModelGen

Lead: Michael O'Brien & Guy Pelletier

• Metamodel
  • Mapping between JPA 2.0 classes and native metamodel
  • Initialization
  • Challenges/Issues
  • Future
    • Extended Metamodel API

• Model Gen
  • Model gen using compiler hooks
  • Challenges/Issues/Limitations
  • Future
    • EclipseLink extended mapping

Weaving

Lead: Tom Ware

• Features Woven
  • Lazy Loading
  • Change Tracking
  • State Caching: Identity, Session
• Configuration
  • Persistence Unit Properties
  • Dynamic Weaving
  • Static Weaving
• Challenges/Issues
• Future Direction

Advanced Querying

• Queries in Code
  • Expression Framework
  • JPA 2.0 Criteria
• Optimizations
  • Joining
  • Batching
  • FetchGroup
  • Projections (ReportQuery)
• Cache Usage
  • Conforming
  • In-memory
• Query Redirectors
• Query Life-cycle Events
• Stored Procedures

Advanced Caching

• Isolated/Transactional Caching
• Stale Cache Management
  • Refreshing
  • Cache Coordination
• Interceptors

Management, Diagnostics, & Tuning

Lead: James Sutherland

• Logging
• MBeans
• Profilers
• Performance Tuning Infrastructure
  • Guidelines for Developers
• User Best Practices

Customization

• Customizers: Session & Descriptor
• Listeners: Session & Descriptor
• User Defined Data Types and Converters
• Custom Platforms
• Mapping Customizing: policies
• Query Customizing
• Future
  • Configuration Profile - bug 293766

Dynamic Persistence

Lead: Doug Clarke

• Background and Usage Examples
• Solution Design
  • Config: Native XML, API, eclipselink-orm.xml
• Challenges/Issues/Limitations
• Future

THURSDAY

Process

Lead: Peter Krogh

• Eclipse Processes
  • IP process, log, use of Bugzilla
  • Annual Release Train
  • Header: License and contribution log
• EclipseLink Development process
  • Using Bugzilla
  • Project Plans
  • Releases, Milestones, and patch-sets
• Future Direction Discussion
  • Utilities: Find Bugs, Code formatting, Code Coverage