org.eclipse.scada.hd.server.importer.hsdb

Class HSDBHistoricalItem

java.lang.Object

org.eclipse.scada.hd.server.importer.hsdb.HSDBHistoricalItem

All Implemented Interfaces:

HistoricalItem, ValueSourceManager

public class HSDBHistoricalItem
extends Object
implements HistoricalItem, ValueSourceManager

Constructor Summary

Constructors

Constructor and Description
HSDBHistoricalItem(ScheduledExecutorService executor, HSDBValueSource source, HistoricalItemInformation information)

Method Summary

Modifier and Type	Method and Description
Query	createQuery(QueryParameters parameters, QueryListener listener, boolean updateData) Create a new query
void	dispose()
HistoricalItemInformation	getInformation() Get the item information
void	queryClosed(QueryImpl query)
boolean	visit(QueryParameters parameters, ValueVisitor visitor) Visit values

Methods inherited from class java.lang.Object

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

Constructor Detail

HSDBHistoricalItem

public HSDBHistoricalItem(ScheduledExecutorService executor,
                          HSDBValueSource source,
                          HistoricalItemInformation information)

Method Detail

createQuery

public Query createQuery(QueryParameters parameters,
                         QueryListener listener,
                         boolean updateData)

Description copied from interface: HistoricalItem

Create a new query

Specified by:

createQuery in interface HistoricalItem

Parameters:

parameters - the initial query parameters

listener - the query listener

updateData - if true then additional updates will be made by the query when data changes although the query is QueryState.COMPLETE

Returns:

the new query or null if the query could be be created

dispose

public void dispose()

getInformation

public HistoricalItemInformation getInformation()

Description copied from interface: HistoricalItem

Get the item information

Specified by:

getInformation in interface HistoricalItem

Returns:

the item information

queryClosed

public void queryClosed(QueryImpl query)

Specified by:

queryClosed in interface ValueSourceManager

visit

public boolean visit(QueryParameters parameters,
                     ValueVisitor visitor)

Description copied from interface: ValueSourceManager

Visit values

Specified by:

visit in interface ValueSourceManager

Parameters:

parameters - the parameters to visit

visitor - the visitor

Returns:

true if the run was complete, false if is was aborted by the visitor