Package org.apache.openjpa.util

OpenJPA Utilities

This package provides utilities to facilitate the handling of second class objects and OpenJPA object ids.

Interface Summary

Interface	Description
ChangeTracker	Interface for components that track changes to containers at a fine-grained level.
ClassResolver	Interface to customize the loading of classes under OpenJPA.
CollectionChangeTracker	Change tracker that can be used for collections.
ExceptionInfo	Interface supplying additional exception information.
LRSProxy	Marker interface for large result set proxies.
MapChangeTracker	Change tracker that can be used for maps.
Proxy	Interface implemented by all proxy types to allow setting and nulling of their owning instance.
ProxyManager	Manager for copying and proxying second class objects.
RuntimeExceptionTranslator	Interface used by many facade helpers to translate exceptions.

Class Summary

Class	Description
AbstractChangeTracker	Base class that provides utilities to change trackers.
AbstractLRSProxyCollection	A collection proxy designed for collections backed by extremely large result sets in which each call to AbstractLRSProxyCollection.iterator() may perform a database query.
AbstractLRSProxyMap<K,V>	A map proxy designed for maps backed by extremely large result sets in which each call to AbstractLRSProxyMap.get(java.lang.Object) or AbstractLRSProxyMap.containsKey(java.lang.Object) may perform a database query.
ApplicationIds	Utility class for manipulating application object ids.
ArrayStateImage	Utilities for dealing with a simple state image consisting of an Object[] of field values with one extra index containing a BitSet of loaded fields.
BigDecimalId
BigIntegerId
BlacklistClassResolver
BooleanId	OpenJPAId subclass appropriate for boolean fields.
ByteId	OpenJPAId subclass appropriate for byte fields.
CacheMap	Fixed-size map that has ability to pin/unpin entries and move overflow to a backing soft map.
CharId	OpenJPAId subclass appropriate for char fields.
ClassLoaderProxyService	Service to load classes dynamically at runtime.
ClassResolverImpl	Default class resolver implementation.
CollectionChangeTrackerImpl	Default CollectionChangeTracker.
DateId	OpenJPAId subclass appropriate for Date fields.
DelayedCollectionChangeTrackerImpl	A collection change tracker used by delay loaded collections.
DoubleId	OpenJPAId subclass appropriate for double fields.
Exceptions	Utility methods for externalizing and handling exceptions.
FloatId	OpenJPAId subclass appropriate for float fields.
GeneratedClasses	Utility methods when generating classes, including at runtime.
Id	Datastore identity type.
ImplHelper	Helper for OpenJPA back-ends.
IntId	OpenJPAId subclass appropriate for int fields.
LongId	OpenJPAId subclass appropriate for long fields.
MapChangeTrackerImpl	Default MapChangeTracker.
MultiLoaderClassResolver	A simple ClassResolver that uses multiple class loaders to resolve classes.
ObjectId	Identity type appropriate for object primary key fields and shared id classes.
OpenJPAId	Identity class extended by built-in OpenJPA identity objects.
Proxies	Utility methods for managing proxies.
ProxyManagerImpl	Default implementation of the ProxyManager interface.
Serialization	Helper class to serialize and deserialize persistent objects, subtituting oids into the serialized stream and subtituting the persistent objects back during deserialization.
Serialization.ClassResolvingObjectInputStream
Serialization.PersistentObjectInputStream	Object input stream that replaces oids with their objects.
Serialization.PersistentObjectOutputStream	Object output stream that replaces persistent objects with their oids.
ShortId	OpenJPAId subclass appropriate for short fields.
StoreFacadeTypeRegistry	Repository of store-specific facade classes.
StringId	OpenJPAId subclass appropriate for String fields.

Exception Summary

Exception	Description
CallbackException	Exception type thrown when an error occurs in a callback.
GeneralException	General exception type.
InternalException	Exception type for internal errors.
InvalidStateException	Exception type thrown when attempting to execute an operation that is not allowed by the current state.
LockException	Exception indicating that locks on one or more objects could not be acquired.
MetaDataException	Exception type reserved for missing or invalid metadata.
NonUniqueResultException	Exception type thrown when a query was configured to return a single result, and multiple results were found.
NoResultException	Exception type thrown when a query was configured to return a single result, and no result was found.
NoTransactionException	Exception type thrown when attempting a transactional operation without an active transaction.
ObjectExistsException	Exception type reserved for conflicts with existing objects.
ObjectNotFoundException	Exception type reserved for failed object lookups.
OpenJPAException	Exception type for all OpenJPA exceptions.
OptimisticException	Exception type for optimistic concurrency violations.
QueryException	Exception indicating that a query timeout occurred.
ReferentialIntegrityException	Exception type reserved for violations of integrity constraints.
StoreException	Base exception for data store errors.
UnsupportedException	Exception type for attempts to perform unsupported operations.
UserException	Base exception type for user errors.
WrappedException	Identifiable exception type which wraps an internal runtime exception.