org.eclipse.scada.da.master.internal

Class MasterItemImpl

java.lang.Object

org.eclipse.scada.da.datasource.base.AbstractDataSource

org.eclipse.scada.da.datasource.base.AbstractDataSourceHandler

org.eclipse.scada.da.master.internal.MasterItemImpl

All Implemented Interfaces:

DataSource, MasterItem

public class MasterItemImpl
extends AbstractDataSourceHandler
implements MasterItem

Field Summary

Fields inherited from interface org.eclipse.scada.da.master.MasterItem

MASTER_ID

Fields inherited from interface org.eclipse.scada.da.datasource.DataSource

DATA_SOURCE_ID

Constructor Summary

Constructors

Constructor and Description
MasterItemImpl(Executor executor, org.osgi.framework.BundleContext context, String id, ObjectPoolTracker<DataSource> dataSourcePoolTracker)

Method Summary

Modifier and Type	Method and Description
void	addHandler(MasterItemHandler handler, int priority) Add a new sub condition
void	dispose()
protected void	doReprocess() Re-process with the same source value
protected Executor	getExecutor() Return the executor to use for sending out events
protected void	handleProcess() handle the processing
protected WriteAttributeResults	mergeResults(WriteAttributeResults firstResult, WriteAttributeResults secondResult) Merge the two result sets
protected DataItemValue	processHandler(DataItemValue value)
void	removeHandler(MasterItemHandler handler) remove sub condition
void	reprocess()
NotifyFuture<WriteAttributeResults>	startWriteAttributes(Map<String,Variant> attributes, OperationParameters operationParameters)
NotifyFuture<WriteResult>	startWriteValue(Variant value, OperationParameters operationParameters)
protected void	stateChanged(DataItemValue value)
String	toString()
void	update(Map<String,String> properties)

Methods inherited from class org.eclipse.scada.da.datasource.base.AbstractDataSourceHandler

getDataSource, setDataSource, setDataSource

Methods inherited from class org.eclipse.scada.da.datasource.base.AbstractDataSource

addListener, removeListener, updateData

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.eclipse.scada.da.datasource.DataSource

addListener, removeListener

Constructor Detail

MasterItemImpl

public MasterItemImpl(Executor executor,
                      org.osgi.framework.BundleContext context,
                      String id,
                      ObjectPoolTracker<DataSource> dataSourcePoolTracker)
               throws org.osgi.framework.InvalidSyntaxException

Throws:

org.osgi.framework.InvalidSyntaxException

Method Detail

getExecutor

protected Executor getExecutor()

Description copied from class: AbstractDataSource

Return the executor to use for sending out events

Specified by:

getExecutor in class AbstractDataSource

Returns:

the executor to use, must never be null

dispose

public void dispose()

Overrides:

dispose in class AbstractDataSourceHandler

addHandler

public void addHandler(MasterItemHandler handler,
                       int priority)

Description copied from interface: MasterItem

Add a new sub condition

Specified by:

addHandler in interface MasterItem

Parameters:

handler - new condition to add

reprocess

public void reprocess()

Specified by:

reprocess in interface MasterItem

doReprocess

protected void doReprocess()

Re-process with the same source value

handleProcess

protected void handleProcess()

handle the processing

Parameters:

value - the source value

stateChanged

protected void stateChanged(DataItemValue value)

Specified by:

stateChanged in class AbstractDataSourceHandler

removeHandler

public void removeHandler(MasterItemHandler handler)

Description copied from interface: MasterItem

remove sub condition

Specified by:

removeHandler in interface MasterItem

processHandler

protected DataItemValue processHandler(DataItemValue value)

startWriteValue

public NotifyFuture<WriteResult> startWriteValue(Variant value,
                                                 OperationParameters operationParameters)

Specified by:

startWriteValue in interface DataSource

startWriteAttributes

public NotifyFuture<WriteAttributeResults> startWriteAttributes(Map<String,Variant> attributes,
                                                                OperationParameters operationParameters)

Specified by:

startWriteAttributes in interface DataSource

mergeResults

protected WriteAttributeResults mergeResults(WriteAttributeResults firstResult,
                                             WriteAttributeResults secondResult)

Merge the two result sets

Parameters:

firstResult - first set

secondResult - second set

Returns:

the merged result

update

public void update(Map<String,String> properties)
            throws org.osgi.framework.InvalidSyntaxException

Throws:

org.osgi.framework.InvalidSyntaxException

toString

public String toString()

Overrides:

toString in class Object