org.eclipse.scada.da.server.osgi.summary

Class AbstractDataSourceSummarizer

java.lang.Object

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

org.eclipse.scada.da.datasource.base.AbstractInputDataSource

org.eclipse.scada.da.server.osgi.summary.AbstractDataSourceSummarizer

All Implemented Interfaces:

DataSource

Direct Known Subclasses:

AttributeDataSourceSummarizer

public abstract class AbstractDataSourceSummarizer
extends AbstractInputDataSource

Field Summary

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

DATA_SOURCE_ID

Constructor Summary

Constructors

Constructor and Description
AbstractDataSourceSummarizer(Executor executor, ObjectPoolTracker<DataSource> tracker)

Method Summary

Modifier and Type	Method and Description
void	close()
protected Executor	getExecutor() Return the executor to use for sending out events
protected void	handleAdded(DataSource service, Dictionary<?,?> properties)
protected abstract void	handleAdding(DataSource source) Called right before the new data source is added but before it is registered
protected abstract void	handleRemoved(DataSource source) Called after the data source has been removed
protected void	handleRemoved(DataSource service, Dictionary<?,?> properties)
protected abstract void	handleStateChange(DataSource source, DataItemValue value)
protected boolean	isMatch(DataSource service, Dictionary<?,?> properties)
void	open()

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

startWriteAttributes, startWriteValue

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, toString, wait, wait, wait

Constructor Detail

AbstractDataSourceSummarizer

public AbstractDataSourceSummarizer(Executor executor,
                                    ObjectPoolTracker<DataSource> tracker)

Method Detail

isMatch

protected boolean isMatch(DataSource service,
                          Dictionary<?,?> properties)

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

open

public void open()

close

public void close()

handleAdded

protected void handleAdded(DataSource service,
                           Dictionary<?,?> properties)

handleRemoved

protected void handleRemoved(DataSource service,
                             Dictionary<?,?> properties)

handleAdding

protected abstract void handleAdding(DataSource source)

Called right before the new data source is added but before it is registered

Parameters:

source - the source that changed

handleRemoved

protected abstract void handleRemoved(DataSource source)

Called after the data source has been removed

Parameters:

source - the source that changed

handleStateChange

protected abstract void handleStateChange(DataSource source,
                                          DataItemValue value)