Package org.apache.jackrabbit.core.version

The versioning framework in jackrabbit consists of 3 layers.

See: Description

Package org.apache.jackrabbit.core.version Description

The versioning framework in jackrabbit consists of 3 layers. A persistence layer, an application layer and an presentation layer.

The persistence layer uses a 'normal' workspace as storage. The storage can later be exchanged by a more scaleable one. The application layer operates on the persistent one and provides the internal view of the version storage. It is manifested through the InternalVersion and InternalVersionHistory objects. The internal versions are also mapped to the content and exposed through the API (i.e. the Version extends Node and can be inspected with normal Node methods). Furthermore the version store is also exposed below /jcr:system/jcr:versionStorage. The exact structure of it is not defined yet, so applications should not relay on it and rather use Node.getVersionHistory() to access a particular version history or use the search mechanisms to find the respective versions.

The presentation layer is managed by the VersionManager. it is responsible for mapping the version storage to the content.

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