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oracle.adfinternal.model.adapter.ejb
Class EjbDataControl

java.lang.Object
oracle.adf.model.adapter.AbstractImpl
oracle.adf.model.adapter.bean.UpdatableBeanDataControl
oracle.adf.model.adapter.bean.BeanFilterableDataControl
oracle.adf.model.adapter.bean.JavaBeanDataControl
oracle.adfinternal.model.adapter.ejb.EjbDataControl

All Implemented Interfaces:

DataControl, FilterableDataControl, ManagedDataControl, TransactionalDataControl, UpdateableDataControl

Direct Known Subclasses:

EjbDCDefinitionDataControl

public class EjbDataControl

extends JavaBeanDataControl

implements ManagedDataControl

Data Control implementation class for EJB objects.

Since:

10.1.3

Field Summary

Fields inherited from class oracle.adf.model.adapter.bean.UpdatableBeanDataControl

_logger

Fields inherited from class oracle.adf.model.adapter.AbstractImpl

METHOD_CREATE, METHOD_EXECUTE, mName, SORT_CRITERIA

Method Summary

void	beginRequest(java.util.HashMap requestCtx) Implemented per the ManagedDataControl contract.
java.io.Serializable	createSnapshot() Creates a snapshot of the state of the DataControl.
void	endRequest(java.util.HashMap requestCtx) Implemented per the ManagedDataControl contract.
java.lang.Object	getDataProvider() Returns the data provider for this data control.
protected void	initDCProperties(java.lang.Object instance) Initialize Data Control properties
void	release() Releases the DataControl.
void	release(int flags) The data control release from the binding container.
void	removeSnapshot(java.io.Serializable handle) Removes the snapshot associated with the snapshot handle.
boolean	resetState() Resets the state of the EJBDataControl to it's initial state upon entering the application: a new UnitOfWork is acquired and all RSIs associated with this DataControl are reset to their initial state.
void	restoreSnapshot(java.io.Serializable handle) Restore the state of the DataControl with the snapshot state that is referenced by the handle.

Methods inherited from class oracle.adf.model.adapter.bean.JavaBeanDataControl

commitTransaction, findAccessorDefinition, findAccessorPropertyName, getDefinition, isTransactionDirty, rollbackTransaction

Methods inherited from class oracle.adf.model.adapter.bean.BeanFilterableDataControl

invokeAccessor, invokeOperation

Methods inherited from class oracle.adf.model.adapter.bean.UpdatableBeanDataControl

createRowData, getAddMethodName, getDCHandler, getName, getRemoveMethodName, invokeOperation, registerDataProvider, removeRowData, resetAccessors, setAttributeValue, validate

Methods inherited from class oracle.adf.model.adapter.AbstractImpl

addParameter, createAndAddNewRow, createEmptyDataSet, getAdapterContext, getDefinition, getParameterNames, getParameterValue, getSortCriteria, getStructureDef, getStructureDef, processResult, removeCurrentRow, setDefinition, setName, setParameterValue, setStructureDef, shouldReexecuteOperation

Methods inherited from class java.lang.Object

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

Methods inherited from interface oracle.binding.DataControl

getName, invokeOperation

Method Detail

initDCProperties

protected void initDCProperties(java.lang.Object instance)

Initialize Data Control properties

Overrides:

initDCProperties in class JavaBeanDataControl

Parameters:

instance -

getDataProvider

public java.lang.Object getDataProvider()

Description copied from class: UpdatableBeanDataControl

Returns the data provider for this data control.

Specified by:

getDataProvider in interface DataControl

Overrides:

getDataProvider in class UpdatableBeanDataControl

Returns:

The underlying business service object.

release

public void release()

Releases the DataControl. The DataControl should be in a collectable state after release() has been invokd.

This should close all open DataControl resources.

Specified by:

release in interface DataControl

Overrides:

release in class UpdatableBeanDataControl

release

public void release(int flags)

The data control release from the binding container.

See Also:

DataControl

beginRequest

public void beginRequest(java.util.HashMap requestCtx)

Implemented per the ManagedDataControl contract. Tracks when this data control begins an application request.

Specified by:

beginRequest in interface ManagedDataControl

Parameters:

requestCtx - a HashMap representing request context.

endRequest

public void endRequest(java.util.HashMap requestCtx)

Implemented per the ManagedDataControl contract. Tracks when this data control has ended an application request.

Specified by:

endRequest in interface ManagedDataControl

Parameters:

requestCtx - a HashMap representing request context.

resetState

public boolean resetState()

Resets the state of the EJBDataControl to it's initial state upon entering the application: a new UnitOfWork is acquired and all RSIs associated with this DataControl are reset to their initial state.

Specified by:

resetState in interface ManagedDataControl

Returns:

true if resetState was processed immediately. false if resetState was deferred to endRequest processing.

createSnapshot

public java.io.Serializable createSnapshot()

Creates a snapshot of the state of the DataControl. A snapshot may be used to save the DataControl state so that it may be restored some time later. Returns a serializable handle to the snapshot.

Returns:

a snapshot handle

restoreSnapshot

public void restoreSnapshot(java.io.Serializable handle)

Restore the state of the DataControl with the snapshot state that is referenced by the handle.

Parameters:

handle - Serializable a snaphsot handle that was created with createSnapshot().

removeSnapshot

public void removeSnapshot(java.io.Serializable handle)

Removes the snapshot associated with the snapshot handle.

Parameters:

handle - Serializable a snapshot handle that was created with createSnapshot().

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