kodo.jdbc.runtime
Interface JDBCLockManager

All Superinterfaces:

com.solarmetric.util.Closeable, LockManager

All Known Implementing Classes:

PessimisticLockManager

public interface JDBCLockManager

extends LockManager

Extension of the LockManager interface with methods for datastore locking during the select and load process. Implementors of this interface can also take advantage of the fact that in the LockManager.lock(kodo.runtime.KodoStateManager, int, int, java.lang.Object) and LockManager.lockAll(java.util.Collection, int, int, java.lang.Object) methods, the given conn parameter, if any, will be an instance of ConnectionInfo.

Method Summary

void	loadedForUpdate(KodoStateManager sm) Notification that the given instance was loaded via a result set produced by a FOR UPDATE select.
boolean	selectForUpdate(Select sel, int lockLevel) Return whether to issue the given select FOR UPDATE, depending on the capabilities of the dictionary and the fetch configuration.

Methods inherited from interface kodo.runtime.LockManager

beginTransaction, close, endTransaction, getLockLevel, lock, lockAll, release, setPersistenceManager

Method Detail

selectForUpdate

public boolean selectForUpdate(Select sel,
                               int lockLevel)

Return whether to issue the given select FOR UPDATE, depending on the capabilities of the dictionary and the fetch configuration.

loadedForUpdate

public void loadedForUpdate(KodoStateManager sm)

Notification that the given instance was loaded via a result set produced by a FOR UPDATE select.