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CoherenceTM v3.3 Copyright© 2000-2007 by Oracle Corporation |
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java.lang.Object com.tangosol.util.Base com.tangosol.coherence.toplink.TopLinkCacheLoader
public class TopLinkCacheLoader
TopLink implementation of the CacheLoader
interface.
TopLinkCacheStore
class for a full load and store
implementation.
TopLinkCacheStore
Field Summary | |
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protected Class |
m_clzEntity
The entity class that this CacheLoader is managing. |
protected oracle.toplink.essentials.descriptors.ClassDescriptor |
m_descEntity
Descriptor for entity class. |
protected boolean |
m_fUsePkClass
Flag to indicate whether or not the PK is a composite class. |
protected oracle.toplink.essentials.mappings.DatabaseMapping |
m_mappingPk
Database mapping of the PK attribute. |
protected String |
m_sEntityName
Name of the entity that this CacheLoader is managing. |
protected oracle.toplink.essentials.sessions.Session |
m_session
Shared session for all entities. |
protected String |
m_sPkField
Field name of the PK attribute. |
Constructor Summary | |
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TopLinkCacheLoader(String sEntityName)
Constructor which accepts an entity name. |
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TopLinkCacheLoader(String sEntityName,
String sSessionName)
Constructor which accepts an entity name and session name. |
Method Summary | |
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protected void |
initialize(String sEntityName,
String sSessionName)
Initialize the instance with the relevant metadata for the entity being stored. |
Object |
load(Object oKey)
Return the value associated with the specified key, or null if the key does not have an associated value in the underlying store. |
Map |
loadAll(Collection colKeys)
Return the values associated with each the specified keys in the passed collection. |
protected Object |
queryByPk(oracle.toplink.essentials.sessions.UnitOfWork uow,
Object oKey)
Internal method to create and execute a "findByPK" query. |
protected Object |
queryByPkCollection(oracle.toplink.essentials.sessions.UnitOfWork uow,
Collection colPk)
Internal method to create and execute a query to find in a group of PKs. |
Field Detail |
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protected String m_sEntityName
protected Class m_clzEntity
protected boolean m_fUsePkClass
protected oracle.toplink.essentials.mappings.DatabaseMapping m_mappingPk
protected String m_sPkField
protected oracle.toplink.essentials.descriptors.ClassDescriptor m_descEntity
protected oracle.toplink.essentials.sessions.Session m_session
Constructor Detail |
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public TopLinkCacheLoader(String sEntityName)
sEntityName
- the alias for the persistent classpublic TopLinkCacheLoader(String sEntityName, String sSessionName)
sEntityName
- the alias for the persistent classsSessionName
- the name of the TopLink session (usually defined in
sessions.xml)Method Detail |
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public Object load(Object oKey)
load
in interface CacheLoader
oKey
- key whose associated value is to be returned
public Map loadAll(Collection colKeys)
loadAll
in interface CacheLoader
colKeys
- a collection of keys to load
protected void initialize(String sEntityName, String sSessionName)
sEntityName
- the alias for the persistent classsSessionName
- the name of the TopLink sessionprotected Object queryByPk(oracle.toplink.essentials.sessions.UnitOfWork uow, Object oKey)
uow
- the unit of work to use for the operation; if null use
the sessionoKey
- the primary key to use to find the object
protected Object queryByPkCollection(oracle.toplink.essentials.sessions.UnitOfWork uow, Collection colPk)
uow
- the unit of work to use for the operation; if null use
the sessioncolPk
- the Collection of primary keys to use to find the entity
instances
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CoherenceTM v3.3 Copyright© 2000-2007 by Oracle Corporation |
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