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See:
Description
Interface Summary | |
---|---|
InternalActivity | This interface defines the internal activity. |
InternalBaseline | This interface defines the internal baseline. |
InternalFreeze | the base interface for nodes that were versioned and turned either into InternalFrozenNode or InteralFrozenVersionHistory. |
InternalFrozenNode | The InternalFrozenNode interface represents the frozen node that was generated
during a Node.checkin() . |
InternalFrozenVersionHistory | This interface defines a frozen versionable child node, that was created
during a Node.checkin() with a OPV==Version node. |
InternalVersion | This interface defines the internal version. |
InternalVersionHistory | This interface defines the internal version history. |
InternalVersionItem | This interface defines the base for all internal versioning items. |
InternalVersionManager | This interface defines the version manager. |
VersionSelector | This Interface defines the version selector that needs to provide a version, given some hints and a version history. |
Class Summary | |
---|---|
DateVersionSelector | This Class implements a version selector that selects a version by creation date. |
InternalVersionManagerImpl | This Class implements a VersionManager. |
InternalVersionManagerImpl.DynamicESCFactory | |
InternalXAVersionManager | Implementation of a InternalVersionManager that works in an XA environment. |
LabelVersionSelector | This Class implements a version selector that selects a version by label. |
NodeStateEx | This Class provides some basic node operations directly on the node state. |
VersionHistoryImpl | Base implementation of the VersionHistory interface. |
VersionHistoryInfo | Simple data object that carries the identifiers of a version history node and the related root version node. |
VersionImpl | Base implementation of the Version interface. |
VersionItemStateManager | Spezialized SharedItemStateManager that filters out NodeReferences to non-versioning states. |
VersionManagerImplBase | The JCR Version Manager impementation is split in several classes in order to group related methods together. |
VersionManagerImplConfig | The JCR Version Manager impementation is split in several classes in order to group related methods together. |
VersionManagerImplMerge | The JCR Version Manager impementation is split in several classes in order to group related methods together. |
VersionManagerImplRestore | The JCR Version Manager impementation is split in several classes in order to group related methods together. |
VersionSet | This Class implements a version selector that is based on a set of verions. |
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.
Open issues:
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