Package org.exolab.core.foundation

Interface Summary

CollectionManagerIfc	This interface defines methods for creating specific types of collections including hashtables and vectors.
DatabaseIfc	This interface attempts to abstract the database layer so that is can support several types of persistent storss.
DatabaseManagerIfc	The DatabaseManager interface defines the creation point for the database.
HandleIfc	This is the base class for a handle.
HashMapIfc	This interface abstracts the Persistent HashMap data structure so that it can be mapped to various persistent and transient datastores.
LockServiceIfc	Thew lock service is responsible for manmaging object level locking of PersistentObject instances.
PersistentCapableIfc	This interface is used to mark persistent capable classes.
SessionIfc	A session defines a communication pipe for clients and servers to exchange information.
SessionManagerIfc	This interface is responsible for managing all aspects of a sessions lifecycle from creation, administering and destruction.
TransactionIfc	This is an protocol for a Transaction.
TreeMapIfc	This interface abstracts the Persistent TreeMap data structure so that it can be mapped to various persistent and transient datastores.
TreeSetIfc	This interface abstracts the Persistent TreeSet data structure so that it can be mapped to various persistent and transient datastores.
VectorIfc	This interface abstracts a persistent capable Vector data structure so that it can be mapped by various datastores.

Class Summary

Lock	Exclusive lock and lock synchronization on an object.
LockStatus	This class defines the various states of a lock..
LockType	This class defines an enumeration for lock types..
LruObjectCache	This class is a global object cache for database objects.
ObjectId	This class defines a unique identifier for the object in a particular datastore.
ObjectVersion	This class defines an object version.
PersistentObject	This is the base class for all persistent objects.
TransactionCache	The transaction cache maintains a list of PersistentObjects associated with a particular transaction.
TransactionContext
TransactionStatus	This class defines the various states of a transaction.A transaction can be in one three possible states.

Exception Summary

DatabaseIOException	This exception is raised when there is a there is failure in reading or writingrdcords to the database a database.
FailedToAcquireLockException	This excpetion is thrown whenever the lock service fails to acquire a lock on a persistent object
FailedToAcquireLocksException	This excpetion is thrown whenever the lock service fails to acquire one or more locks.
FailedToCreateCollectionException	This exception is thrown when the collection manager fails to create the specified collection.
FailedToCreateDatabaseException	This exception is raised when there is a failure in creating or opening a database.
FailedToCreateHandleException	This excpetion is thrown whenever a client attmepts to create a handle through a SessionIfc object and the handle cannot be created either b/c it has not been persistent yet or there is no transaction in progress.
FailedToCreateLockException	This exception is raised when there is a failure in creating a lock on a persistent object
FailedToCreateSessionException	This exception is thrown when the session manager cannot allocate a session to a client.
FailedToDestroySessionException	This exception is raised when the session manager cannot delete one of its pre-allocated sessions.
FailedToOpenDatabaseException	This exception is raised when there is a failure in opening a database.
FailedToReleaseLockException	This excpetion is thrown whenever the lock service fails to release a lock on a persistent object
FailedToReleaseLocksException	This excpetion is thrown whenever the lock service fails to release one or more locks.
LockNotGrantedException	Exception thrown when failed to acquire a lock on an object.
NoAvailableRootException	This exception is raised if a client attempts to retrieve a root object where no roots exist.
ObjectDeletedWaitingForLockException	Thrown to indicate that a lock attempt has failed due to object being deleted by a concurrent transaction.
ObjectNameExistsException	This exception is thrown when someone attempts to bind an object to a name that already exists .
ObjectNameNotFoundException	This exception is raised when an attempt is made to retrieve an object bound to a specified name, which does not exist.
TransactionException	This exception is raised when there is a non-specific transaction exception
TransactionInProgressException	This exception is raised if a begin is called while a transaction is already in progress
TransactionNotInProgressException	This excpetion is raised when an attempt is made to commit or abort a transaction that is not in progress.