Page History

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The Versioning Service will rely on a generica IdentifierService that is described below for minting and registering any identifiers that are required to track the revision history of the Items.

Code: Google Code

public interface VersioningService {

    Version createNewVersion(Context c, int itemId);

    Version createNewVersion(Context c, int itemId, String summary);

    void removeVersion(Context c, int versionID);

    void removeVersion(Context c, Item item);

    Version getVersion(Context c, int versionID);

    Version restoreVersion(Context c, int versionID);

    Version restoreVersion(Context c, int versionID, String summary);

    VersionHistory findVersionHistory(Context c, int itemId);

    Version updateVersion(Context c, int itemId, String summary);

    Version getVersion(Context c, Item item);

}

Identifier Service

The Identifier Service maintains an extensible set of IdentifierProvider services that are responsible for two important activities in Identifier management:

1. Resolution: IdentifierService act in a manner similar to the exisitng HandleManager in DSpace, allowing for resolution of DSpace Items from provided identifiers.
2. Minting: Minting is the act of reserving and returning an identifier that may be used with a specific DSpaceObject.
3. Registering: Registering is the act of recording the existence of a minted identifier with an external persistent resolver service, these services may reside ont he local machine (HandleManager) or exist as external services (PURL or DEZID DOI registrations services)

Code: Google Code

public interface IdentifierService {

    void reserve(Context context, Item item) throws AuthorizeException, SQLException, IdentifierException;

    String register(Context context, Item item) throws AuthorizeException, SQLException, IdentifierException;

    DSpaceObject resolve(Context context, String identifier) throws IdentifierNotFoundException, IdentifierNotResolvableException;

    void delete(Context context, Item item) throws AuthorizeException, SQLException, IdentifierException;
}

Backend Provider Interface

The IdentifierProviders are also responsible for altering any existing DSpace metadata fields that need to be altered on the new and previous items to record the relationship between Item Versions.

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