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Oracle Fusion Middleware Java API for Oracle WebLogic Portal 10g Release 3 (10.3.2) E14255-01 |
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java.lang.Object
com.bea.p13n.property.AbstractConfigurableEntity
com.bea.p13n.property.ConfigurableEntityImpl
com.bea.p13n.property.HierarchicalEntityImpl
public abstract class HierarchicalEntityImpl
HierarchicalEntity extends ConfigurableEntity by describing an interface by which Entities can be included in a hierachy of successors. The resulting hierarchy is searched upward when getting Properties. This design pattern models the Chain of Responsibility Pattern (Gamma et al).
For example, if an entity A has a successor entity B, and A is queried for a property but does not have a value persisted for that property, it will lookup entity B and query it for that property.
Also, "explicit" successors can be specified as part of a getProperty method call. These are other ConfigurableEntities that should be queried after the current entity, but before any persisted successors.
A HierarchicalEntity can have one successor persisted for each property set, as well as a "default" successor that is not associated with a property set. The default successor will be queried in the case that the current entity does not have a value, the explicit successor (if one is specified) does not have a value, and the successor for the property's property set does not have a value.
Field Summary | |
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protected static String |
FIND_BY_PK finder method name |
Fields inherited from class com.bea.p13n.property.ConfigurableEntityImpl |
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_ctx, _environmentNamingContext, COMMERCE_POOL, ENTITY_PROPERTY_MANAGER, entityPropertyManager, JNDI_NAME, PROPERTY_SET_MANAGER, PROPERTY_SET_TYPE, propertyLocator, psManager, textFormatter, uid |
Fields inherited from class com.bea.p13n.property.AbstractConfigurableEntity |
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CE_METHOD_CACHE, instanceClass, PREFIX_GET, PREFIX_SET, propertyCache |
Fields inherited from interface com.bea.p13n.property.ConfigurableEntity |
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RESERVED_PROPERTY_SET |
Constructor Summary | |
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HierarchicalEntityImpl() |
Method Summary | |
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protected Method |
getFindByPrimaryKey(Class homeClass, Class[] params) Get the findByPrimaryKey method from a home interface. |
protected Object |
getImplicitProperty(String propertySet, String propertyName) Override ConfigurableEntity.getImplicitProperty to do a successor search if the property was not found in this entity |
protected Object |
getImplicitProperty(String propertySet, String propertyName, ConfigurableEntity explicitSuccessor) Search for the property value in the default database tables; first in the current entity, then in the explicit successor entity, then in the implicit successor for the property set, and finally in the default implicit successor for this entity. |
Object |
getProperty(String propertySet, String propertyName, ConfigurableEntity successor) Retrieve the value associated with the named key in the specified property set. |
String |
getPropertyAsString(String propertySet, String propertyName, ConfigurableEntity successor) Convenience method to return the property as a String. |
Object |
getPropertyNoDefault(String propertySet, String propertyName, ConfigurableEntity successor) Retrieve the value associated with the property in the specified property set, but does not return a default value from the property's PropertyDefinition if the property does not exist for the entity or in the hierarchy of successors. |
ConfigurableEntity |
getSuccessor(String propertySet) Retrieve the successor associated with this ConfigurableEntity for the specified property set. |
protected ConfigurableEntity |
getSuccessorFromId(Long anEntityId) Get the entity represented by a unique entity id. |
void |
removeSuccessor(String propertySet) Remove the successor for the specified propertySet. |
void |
setSuccessor(String propertySet, ConfigurableEntity successor) This sets the successor for this object. |
Methods inherited from class com.bea.p13n.property.AbstractConfigurableEntity |
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createMapKey, getCachedProperty, getExplicitProperty, getExplicitSetter, getPropertyAsString, getPropertyNoDefault, hasExplicitGetter, hasExplicitSetter, removeExplicitProperty, setExplicitProperty, upcaseFirst |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Field Detail |
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protected static final String FIND_BY_PK
Constructor Detail |
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public HierarchicalEntityImpl()
Method Detail |
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public Object getProperty(String propertySet, String propertyName, ConfigurableEntity successor) throws RemoteException
propertySet
- The name of the property setpropertyName
- The name of the property to retrieve.successor
- The explicit successor to use for sucessor hiearchy search if the entity does not have the property defined.RemoteException
public String getPropertyAsString(String propertySet, String propertyName, ConfigurableEntity successor) throws RemoteException
propertySet
- The name of the property setpropertyName
- The name of the property to retrieve.successor
- The explicit successor to use for sucessor hiearchy search if the entity does not have the property defined.RemoteException
public Object getPropertyNoDefault(String propertySet, String propertyName, ConfigurableEntity successor) throws RemoteException
propertySet
- The name of the property setpropertyName
- The name of the property to retrieve.successor
- The explicit successor to use for sucessor hiearchy search if the entity does not have the property defined.RemoteException
protected Object getImplicitProperty(String propertySet, String propertyName) throws RemoteException
getImplicitProperty
in class AbstractConfigurableEntity
propertySet
- The name of the property setpropertyName
- The name of the property to retrieve.RemoteException
protected Object getImplicitProperty(String propertySet, String propertyName, ConfigurableEntity explicitSuccessor) throws RemoteException
propertySet
- The name of the property setpropertyName
- The name of the property to retrieve.explicitSuccessor
- The explicit successor to use for sucessor hiearchy search if the entity does not have the property defined.RemoteException
public void removeSuccessor(String propertySet)
public void setSuccessor(String propertySet, ConfigurableEntity successor)
successor
-public ConfigurableEntity getSuccessor(String propertySet) throws RemoteException
propertySet
- the property set to look inRemoteException
protected ConfigurableEntity getSuccessorFromId(Long anEntityId) throws RemoteException
anEntityId
- the successor's unique entity idRemoteException
protected Method getFindByPrimaryKey(Class homeClass, Class[] params)
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Oracle Fusion Middleware Java API for Oracle WebLogic Portal 10g Release 3 (10.3.2) E14255-01 |
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