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Manual
15

Working with JPA Entity Objects [2011-04-18]

during a transaction are held in the persistence context by weak references. Therefore, when a managed ... it and it is automatically removed from the persistence context. ObjectDB can be configured to use strong references or soft references instead of weak references. The contains method can check if a specified entity
Manual
15

Working with JPA Entity Objects

during a transaction are held in the persistence context by weak references. Therefore, when a managed ... it and it is automatically removed from the persistence context. ObjectDB can be configured to use strong references or soft references instead of weak references. The contains method can check if a specified entity
Manual
13

Index Definition

, java.sql.Date, java.sql.Time, java.sql.Timestamp. Any enum type. Reference to an entity object ... class Address { String street; String city; : } Indexes must always refer ... of that class (including subclasses). Every key is associated with a list of references
Manual
13

JPA Primary Key

. Reference to an entity object. Composite Primary Key A composite primary key consist of multiple ... , such a primary key requires more storage space (especially if there are many references to Event objects in the database because references to entities hold primary key values) and is less efficient in store
Manual
11

Entity Management Settings

for entities: The ref attribute specifies the reference type for holding non dirty entities in ... ", "soft" and "strong". Modified entities are always held by strong references in the persistence
Manual
11

JPA Metamodel API

 (which are referred to as managed types) in the persistent object model. Three methods can be used ... for exploring managed fields and properties (which are referred to as attributes). For example
Result
11

ObjectDB Object Database Features [2018-01-27]

is included in ObjectDB distribution download. Online searchable JPA API Reference (based on JavaDoc). Online searchable JDO API Reference (based on JavaDoc). Tutorials Various downloadable tutorials
Result
11

ObjectDB Object Database Features [2018-10-27]

is included in ObjectDB distribution download. Online searchable JPA API Reference (based on JavaDoc). Online searchable JDO API Reference (based on JavaDoc). Tutorials Various downloadable tutorials
Result
11

ObjectDB Object Database Features

distribution download. Online searchable JPA API Reference (based on JavaDoc). Online searchable JDO API Reference (based on JavaDoc). Tutorials Various downloadable tutorials for Eclipse, NetBeans
Manual
7

Server Configuration

" refers to a database file db.odb in a subdirectory 'my' of the data directory. The