org.eclipse.scada.hd.server.storage.hds

Class AbstractStorageImpl

java.lang.Object

org.eclipse.scada.hd.server.storage.hds.AbstractStorageImpl

All Implemented Interfaces:

HistoricalItem, ValueSourceManager

Direct Known Subclasses:

StorageImpl, StorageImpl

public abstract class AbstractStorageImpl
extends Object
implements HistoricalItem, ValueSourceManager

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
protected static interface	AbstractStorageImpl.QueryRunnable

Field Summary

Fields

Modifier and Type	Field and Description
protected String	id
protected DataStoreAccesor	nativeLevel
protected Lock	readLock
protected ReadWriteLock	rwLock
protected Lock	writeLock

Constructor Summary

Constructors

Constructor and Description
AbstractStorageImpl(File file, DataFilePool pool, ScheduledExecutorService queryExecutor, ScheduledExecutorService eventExecutor)

Method Summary

Methods

Modifier and Type	Method and Description
protected void	addJob(FutureTask<Void> task)
Query	createQuery(QueryParameters parameters, QueryListener listener, boolean updateData) Create a new query
void	dispose()
HistoricalItemInformation	getInformation() Get the item information
StorageInformation	getStorageInformation()
protected void	handleStoreChanged(Date start, Date end)
protected void	notifyData(double value, Date timestamp, boolean error, boolean manual)
void	queryClosed(QueryImpl query)
protected void	removeJob(Future<Void> future)
protected void	runOnQuery(AbstractStorageImpl.QueryRunnable runnable)
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

Field Detail

id

protected final String id

nativeLevel

protected final DataStoreAccesor nativeLevel

rwLock

protected final ReadWriteLock rwLock

writeLock

protected final Lock writeLock

readLock

protected final Lock readLock

Constructor Detail

AbstractStorageImpl

public AbstractStorageImpl(File file,
                   DataFilePool pool,
                   ScheduledExecutorService queryExecutor,
                   ScheduledExecutorService eventExecutor)
                    throws Exception

Throws:

Exception

Method Detail

addJob

protected void addJob(FutureTask<Void> task)

removeJob

protected void removeJob(Future<Void> future)

getStorageInformation

public StorageInformation getStorageInformation()

getInformation

public HistoricalItemInformation getInformation()

Description copied from interface: HistoricalItem

Get the item information

Specified by:

getInformation in interface HistoricalItem

Returns:

the item information

runOnQuery

protected void runOnQuery(AbstractStorageImpl.QueryRunnable runnable)

handleStoreChanged

protected void handleStoreChanged(Date start,
                      Date end)

notifyData

protected void notifyData(double value,
              Date timestamp,
              boolean error,
              boolean manual)

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

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

dispose

public void dispose()