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Description
The version store is responsible for the storage and retrieval of version information.
The API is internal and should be simple. It must wrap the underlying version storage implementation to allow its subsitution without distruption to the rest of the system.
API
getVersionHistory
VersionHistory getVersionHistory(wsid, node);
Description:
Gets a node of type VersionHistory that contains the version tree for the node specified.
Parameters:
- wsid - the workspace id
- node_id - the node representing the current state of the object
Result:
Node of type VersionHistory containing the version tree for the node specified.
Exception cases:
- There is no version tree for the node specified.
get
Node get(wsid, version_id);
Description:
Gets the node representing the state of the object associated with the version id specified.
Parameters:
- wsid - the workspace id
- version_id - the id of the version object
Result:
A node representing the state of the object associated with the version specified.
Exception cases:
- Version does not exist in the version store.
put
Version put(wsid, node, description=null);
Version[] put(wsid, node_list, description=null);
Description:
Places a new version in the version store based on the state of the passed node(s). The predessor node is implied by the node's current version and content is taken from the node.
Parameters:
- wsid - the workspace id
- node - node(s) representing the state of the object to be associated with the created node.
- description - the description of the version. An optional parameter with default value null
Result:
Node(s) of type Version representing the data relating to the newly created version.
Exception cases:
- A version tree does not exist for the node passed, see createVersionHistory.
getInfo
Version getInfo(wsid, version_id);
Description:
Gets the information held about a version. This is retrived a node of type Version that contains the version data.
Parameters:
- wsid - the workspace id
- version_id - the version id
Result:
A node of type Version that contains the data about this version.
Exception cases:
- The version does not exist
