org.kepler.objectmanager.lsid

Class LSIDGenerator

java.lang.Object

org.kepler.objectmanager.lsid.LSIDGenerator

public class LSIDGenerator
extends java.lang.Object

This class maintains a list of LSIDs in the system and can generate new LSIDs that are unique to the local system.

Created:

June 20, 2005

Field Summary

Fields

Modifier and Type	Field and Description
static java.lang.String	CORE_DB_STR The name of the database.

Method Summary

Modifier and Type	Method and Description
void	closeDatabase() Close the LSID database if opened.
int	countRowsForCurrentAuthNamespace() Return the number of rows in the LSID_GENERATOR table.
static LSIDGenerator	getInstance() returns a singleton instance of this class
KeplerLSID	getNewLSID() Return a new LSID using the Authority and Namespace for this Kepler Instance and the NextObjectID for this instance with a revision number of 1.
static void	insertRow(java.lang.String authority, java.lang.String namespace, long object, long revision) Insert a row into the LSID generator table.
KeplerLSID	updateLsidRevision(KeplerLSID lsid) Update the revision of a KeplerLSID.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

CORE_DB_STR

public static final java.lang.String CORE_DB_STR

The name of the database.

See Also:

Constant Field Values

Method Detail

getInstance

public static LSIDGenerator getInstance()

returns a singleton instance of this class

getNewLSID

public KeplerLSID getNewLSID()
                      throws java.lang.Exception

Return a new LSID using the Authority and Namespace for this Kepler Instance and the NextObjectID for this instance with a revision number of 1.

Returns:

a new KeplerLSID that is globally unique

Throws:

java.lang.Exception

updateLsidRevision

public KeplerLSID updateLsidRevision(KeplerLSID lsid)

Update the revision of a KeplerLSID.

Parameters:

lsid -

Returns:

insertRow

public static void insertRow(java.lang.String authority,
                             java.lang.String namespace,
                             long object,
                             long revision)
                      throws java.lang.Exception

Insert a row into the LSID generator table.

Throws:

java.lang.Exception

countRowsForCurrentAuthNamespace

public int countRowsForCurrentAuthNamespace()

Return the number of rows in the LSID_GENERATOR table.

Returns:

int number of rows in the LSID_GENERATOR table

closeDatabase

public void closeDatabase()

Close the LSID database if opened.