org.caleigo.core
Class SingleServiceDataSource

java.lang.Object
  org.caleigo.core.SingleServiceDataSource

All Implemented Interfaces:

IDataSource, java.io.Serializable

public class SingleServiceDataSource

extends java.lang.Object

implements IDataSource

Basic implementation of IDataSource that wraps a IDataService.

Version:

1.00

Author:

Dennis Zikovic

See Also:

Serialized Form

Nested Class Summary

Nested classes inherited from class org.caleigo.core.IDataSource

IDataSource.IDataSourceCreator

Field Summary

Fields inherited from interface org.caleigo.core.IDataSource

DataSourceCreator

Constructor Summary

SingleServiceDataSource(IDataService dataService)
Creates new AbstractDataSource

Method Summary

IEntity	createEntity(IEntityDescriptor entityDescriptor) Creates a new entity and lets the data source be the manafer of that entity.
IEntity	createEntity(IEntityDescriptor entityDescriptor, IDataProvider propertySource) Creates a new entity and lets the data source be the manafer of that entity.
IDataService	getDataService() Returns the IDataService for this data source.
IDataSourceDescriptor	getDataSourceDescriptor() Returns the IDataSourceDescriptor for this data source.
IEntity	loadEntity(IEntityDescriptor entityDescriptor, Qualifier identityQualifier) The load method returnes a single entity object intentified by the provided indentity qualifier that must be able to uniquely identify a single entity instance.
ISelection	loadSelection(IEntityDescriptor entityDescriptor, Qualifier qualifier) Loads a selection of entities identyfied by the provided qualifier.
IEntity	manageEntity(IEntity entity) Instucts the data source object to take over the control of an entity.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

SingleServiceDataSource

public SingleServiceDataSource(IDataService dataService)

Creates new AbstractDataSource

Method Detail

getDataSourceDescriptor

public IDataSourceDescriptor getDataSourceDescriptor()

Returns the IDataSourceDescriptor for this data source.

Specified by:

getDataSourceDescriptor in interface IDataSource

getDataService

public IDataService getDataService()

Returns the IDataService for this data source.

Specified by:

getDataService in interface IDataSource

createEntity

public IEntity createEntity(IEntityDescriptor entityDescriptor)

Creates a new entity and lets the data source be the manafer of that entity. This method can be used to create an entity with a data source that is not the default data source for the entitys realated IDataSourceDescriptor.

Specified by:

createEntity in interface IDataSource

loadEntity

public IEntity loadEntity(IEntityDescriptor entityDescriptor,
                          Qualifier identityQualifier)

The load method returnes a single entity object intentified by the provided indentity qualifier that must be able to uniquely identify a single entity instance.

Specified by:

loadEntity in interface IDataSource

loadSelection

public ISelection loadSelection(IEntityDescriptor entityDescriptor,
                                Qualifier qualifier)

Loads a selection of entities identyfied by the provided qualifier.

Specified by:

loadSelection in interface IDataSource

createEntity

public IEntity createEntity(IEntityDescriptor entityDescriptor,
                            IDataProvider propertySource)

Creates a new entity and lets the data source be the manafer of that entity. This method can be used to create an entity with a data source that is not the default data source for the entitys realated IDataSourceDescriptor. The entity is loaded with data from the provided property source.

Specified by:

createEntity in interface IDataSource

manageEntity

public IEntity manageEntity(IEntity entity)

Instucts the data source object to take over the control of an entity. The entity will henceforth belong to this data source and will have its PERSISTENT flag reset. This method is optional and may throw an UnsupportedOperationException.

Specified by:

manageEntity in interface IDataSource