EclipseLink/Performance

EclipseLink is dedicated to being the best performing, and most scalable JPA implementation.

Features

EclipseLink's performance features include:

Object cache
- Cache invalidation (time to live, and time of day)
- Configurable cache types per Entity, (Weak, Soft, SoftCache, HardCache, Full)
- Configurable cache size per Entity
- Clustered cache coordination
Querying
- Read-only queries
- Join fetching (query, nested, mapping)
- Batch reading (query, nested, mapping)
- Fetch groups (query, default, dynamic)
- Fetch size
- Pagination (firstResult, maxResult, ROWNUM filtering)
- Cursors (stream and scrollable)
- Cache usage (in-memory, primary key)
- Query cache (invalidation, size configuration)
Mapping
- Lazy loading
- Read-only objects
- Weaving enhancements
Transactions
- Attribute level change tracking
- Field level updates
Database
- Connection pooling
- Parametrized SQL
- Statement caching
- Batch writing (JDBC, parametrized, native)
Tools
- Performance Profiler