org.apache.openjpa.kernel
Class ROPStoreManager
java.lang.Object
   org.apache.openjpa.kernel.DelegatingStoreManager
org.apache.openjpa.kernel.DelegatingStoreManager
       org.apache.openjpa.kernel.ROPStoreManager
org.apache.openjpa.kernel.ROPStoreManager
- All Implemented Interfaces: 
- StoreManager, Closeable
-  class ROPStoreManager 
- extends DelegatingStoreManager
Wraps the native store manager to handle calls using custom
 PCResultObjectProviders.
- Author:
- Abe White
 
 
 
 
| Methods inherited from class org.apache.openjpa.kernel.DelegatingStoreManager | 
| assignField, assignObjectId, beforeStateChange, begin, beginOptimistic, cancelAll, close, commit, compareVersion, copyDataStoreId, equals, executeExtent, flush, getClientConnection, getDataStoreIdSequence, getDataStoreIdType, getDelegate, getInnermostDelegate, getManagedType, getValueSequence, hashCode, isCached, loadAll, newDataStoreId, newFetchConfiguration, newQuery, releaseConnection, retainConnection, rollback, rollbackOptimistic, setContext | 
 
 
ROPStoreManager
public ROPStoreManager(StoreManager delegate)
exists
public boolean exists(OpenJPAStateManager sm,
                      Object context)
- Description copied from interface: StoreManager
- Verify that the given instance exists in the data store; return false
 if it does not.
 
- 
- Specified by:
- existsin interface- StoreManager
- Overrides:
- existsin class- DelegatingStoreManager
 
- 
 
initialize
public boolean initialize(OpenJPAStateManager sm,
                          PCState state,
                          FetchConfiguration fetch,
                          Object context)
- Description copied from interface: StoreManager
- Initialize the given state manager. The object id of the
 state manager will be set, and the state manager's metadata be set to
 the class of the instance to load, or possibly one of its superclasses.
 Initialization involves first calling the
 OpenJPAStateManager.initialize(java.lang.Class, org.apache.openjpa.kernel.PCState)method with
 a new instance of the correct type constructed with thePCRegistry.newInstance(Class,
 org.apache.openjpa.enhance.StateManager, boolean)method
 (this will reset the state manager's metadata if the actual type was a
 subclass). After instance initialization, load any the fields for the
 given fetch configuration that can be efficiently retrieved. If any of
 the configured fields are not loaded in this method, they will be
 loaded with a subsequent call toStoreManager.load(org.apache.openjpa.kernel.OpenJPAStateManager, java.util.BitSet, org.apache.openjpa.kernel.FetchConfiguration, int, java.lang.Object). If this method is
 called during a data store transaction, the instance's database record
 should be locked. Version information can be loaded if desired through
 theOpenJPAStateManager.setVersion(java.lang.Object)method.
 
- 
- Specified by:
- initializein interface- StoreManager
- Overrides:
- initializein class- DelegatingStoreManager
 
- 
- Parameters:
- sm- the instance to initialize
- state- the lifecycle state to initialize the state manager with
- fetch- configuration for how to load the instance
- context- the current execution data, or null if not
 given to the calling method of the broker
- Returns:
- true if the matching instance exists in the data
 store, false otherwise
 
syncVersion
public boolean syncVersion(OpenJPAStateManager sm,
                           Object context)
- Description copied from interface: StoreManager
- Update the version information in the given state manager to the
 version stored in the data store.
 
- 
- Specified by:
- syncVersionin interface- StoreManager
- Overrides:
- syncVersionin class- DelegatingStoreManager
 
- 
- Parameters:
- sm- the instance to check
- context- the current execution data, or null if not
 given to the calling method of the context
- Returns:
- true if the instance still exists in the
 datastore and is up-to-date, false otherwise
 
load
public boolean load(OpenJPAStateManager sm,
                    BitSet fields,
                    FetchConfiguration fetch,
                    int lockLevel,
                    Object context)
- Description copied from interface: StoreManager
- Load the given state manager.
 Note that any collection or map types loaded into the state manager
 will be proxied with the correct type; therefore the store manager
 does not have to load the same concrete collection/map types as the
 instance declares. However, array types must be consistent with the
 array type stored by the persistence capable instance. If this method
 is called during a data store transaction, the instance should be
 locked. If the given state manager does not have its version set
 already, version information can be loaded if desired through the
 OpenJPAStateManager.setVersion(java.lang.Object)method.
 
- 
- Specified by:
- loadin interface- StoreManager
- Overrides:
- loadin class- DelegatingStoreManager
 
- 
- Parameters:
- sm- the instance to load
- fields- set of fields to load; all field indexes in this
 set must be loaded; this set is mutable
- fetch- the fetch configuration to use when loading
 related objects
- lockLevel- attempt to load simple fields at this lock level;
 relations should be loaded at the read lock level
 of the fetch configuration
- context- the current execution data, or null if not
 given to the calling method of the broker
- Returns:
- false if the object no longer exists in the
 database, true otherwise
 
Copyright © 2006-2011 Apache Software Foundation. All Rights Reserved.