org.dspace.identifier

Interface IdentifierService

All Known Implementing Classes:

IdentifierServiceImpl

public interface IdentifierService

Author:

Fabio Bolognesi (fabio at atmire dot com), Mark Diggory (markd at atmire dot com), Ben Bosman (ben at atmire dot com)

Method Summary

Modifier and Type	Method and Description
void	delete(Context context, DSpaceObject dso) Delete (Unbind) all identifiers registered for a specific DSpace item.
void	delete(Context context, DSpaceObject dso, String identifier) Used to Delete a Specific Identifier (for example a Handle, hdl:1234.5/6) The provider is responsible for Detecting and Processing the appropriate identifier, all Providers are interrogated, multiple providers can process the same identifier.
String[]	lookup(Context contex, DSpaceObject dso) Gets the identifiers all registered IdentifierProvider returns if asked to lookup the provided DSpaceObject.
String	lookup(Context context, DSpaceObject dso, Class<? extends Identifier> identifier) Get an identifier for a given object which is assignment-compatible with a given Identifier type.
void	register(Context context, DSpaceObject dso)
void	register(Context context, DSpaceObject dso, String identifier) Used to Register a specific Identifier (for example a Handle, hdl:1234.5/6) The provider is responsible for detecting and processing the appropriate identifier.
void	reserve(Context context, DSpaceObject dso) Reserves any identifiers necessary based on the capabilities of all providers in the service.
void	reserve(Context context, DSpaceObject dso, String identifier) Used to Reserve a Specific Identifier (for example a Handle, hdl:1234.5/6) The provider is responsible for Detecting and Processing the appropriate identifier, all Providers are interrogated, multiple providers can process the same identifier.
DSpaceObject	resolve(Context context, String identifier) This will resolve a DSpaceObject based on a provided Identifier.

Method Detail

lookup

String lookup(Context context,
              DSpaceObject dso,
              Class<? extends Identifier> identifier)

Get an identifier for a given object which is assignment-compatible with a given Identifier type.

Parameters:

context -

dso - the object to be identified.

identifier - instance of an Identifier of the required type.

Returns:

the matching identifier, or the site identifier if the object is a Site, or null if no matching identifier is found.

lookup

String[] lookup(Context contex,
                DSpaceObject dso)

Gets the identifiers all registered IdentifierProvider returns if asked to lookup the provided DSpaceObject.

Parameters:

context -

dso - the object to be identified.

Returns:

the matching identifiers, or the site identifier if the object is a Site, or an empty array if no matching identifier is found.

resolve

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

This will resolve a DSpaceObject based on a provided Identifier. The Service will interrogate the providers in no particular order and return the first successful result discovered. If no resolution is successful, the method will return null if no object is found. TODO: Verify null is returned.

Parameters:

context -

identifier -

Throws:

IdentifierNotFoundException

IdentifierNotResolvableException

reserve

void reserve(Context context,
             DSpaceObject dso)
      throws AuthorizeException,
             SQLException,
             IdentifierException

Reserves any identifiers necessary based on the capabilities of all providers in the service.

Parameters:

context -

dso -

Throws:

AuthorizeException

SQLException

IdentifierException

reserve

void reserve(Context context,
             DSpaceObject dso,
             String identifier)
      throws AuthorizeException,
             SQLException,
             IdentifierException

Used to Reserve a Specific Identifier (for example a Handle, hdl:1234.5/6) The provider is responsible for Detecting and Processing the appropriate identifier, all Providers are interrogated, multiple providers can process the same identifier.

Parameters:

context -

dso -

identifier -

Throws:

AuthorizeException

SQLException

IdentifierException

register

void register(Context context,
              DSpaceObject dso)
       throws AuthorizeException,
              SQLException,
              IdentifierException

Parameters:

context -

dso -

Throws:

AuthorizeException

SQLException

IdentifierException

register

void register(Context context,
              DSpaceObject dso,
              String identifier)
       throws AuthorizeException,
              SQLException,
              IdentifierException

Used to Register a specific Identifier (for example a Handle, hdl:1234.5/6) The provider is responsible for detecting and processing the appropriate identifier. All Providers are interrogated. Multiple providers can process the same identifier.

Parameters:

context -

dso -

identifier -

Throws:

AuthorizeException

SQLException

IdentifierException

delete

void delete(Context context,
            DSpaceObject dso)
     throws AuthorizeException,
            SQLException,
            IdentifierException

Delete (Unbind) all identifiers registered for a specific DSpace item. Identifiers are "unbound" across all providers in no particular order.

Parameters:

context -

dso -

Throws:

AuthorizeException

SQLException

IdentifierException

delete

void delete(Context context,
            DSpaceObject dso,
            String identifier)
     throws AuthorizeException,
            SQLException,
            IdentifierException

Used to Delete a Specific Identifier (for example a Handle, hdl:1234.5/6) The provider is responsible for Detecting and Processing the appropriate identifier, all Providers are interrogated, multiple providers can process the same identifier.

Parameters:

context -

dso -

identifier -

Throws:

AuthorizeException

SQLException

IdentifierException