| Constraint transparency | ||
| Automatic Dirty Checking | ||
| Detached object support | ||
| Object-oriented query language | ||
| Powerful object-oriented query language | ||
| Full support for polymorphic queries | ||
| New Criteria queries | ||
| Native SQL queries | ||
| Object / Relational mappings | ||
| Three different O/R mapping strategies | ||
| Multiple-objects to single-row mapping | ||
| Polymorphic associations | ||
| Bidirectional associations | ||
| Association filtering | ||
| Collections of basic types | ||
| Indexed collections | ||
| Composite Collection Elements | ||
| Lifecycle objects | ||
| Automatic primary key generation | ||
| Multiple synthetic key generation strategies | ||
| Support for application assigned identifiers | ||
| Support for composite keys | ||
| Object/Relational mapping definition | ||
| XML mapping documents | ||
| Human-readable format | ||
| XDoclet support | ||
| HDLCA (Hibernate Dual-Layer CacheArchitecture) | ||
| Thread safeness | ||
| Non-blocking data access | ||
| Session level cache | ||
| Optional second-level cache | ||
| Optional query cache | ||
| Works well with others | ||
| High performance | ||
| Lazy initialization | ||
| Outer join fetching | ||
| Batch fetching | ||
| Support for optimistic locking withversioning/timestamping | ||
| Highly scalable architecture | ||
| High performance | ||
| No "special" database tables | ||
| SQL generated at system initialization time | ||
| (Optional) Internal connection pooling andPreparedStatement caching | ||
| J2EE integration | ||
| JMX support | ||
| Integration with J2EE architecture (optional) | ||
| New JCA support | ||