org.eclipse.scada.hd.server.common.internal

Class QueryImpl

java.lang.Object

org.eclipse.scada.hd.server.common.internal.QueryImpl

All Implemented Interfaces:

Query, QueryListener

public class QueryImpl
extends Object
implements Query, QueryListener

Constructor Summary

Constructors

Constructor and Description
QueryImpl(SessionImpl session, QueryListener listener)

Method Summary

Modifier and Type	Method and Description
void	changeParameters(QueryParameters parameters) Request a change of parameters
void	close() Close the query
void	dispose()
void	setQuery(Query query)
void	updateData(int index, Map<String,List<Double>> values, List<ValueInformation> valueInformation) Reports data update
void	updateParameters(QueryParameters parameters, Set<String> valueTypes) Reports a change in parameters
void	updateState(QueryState state) Updates the state of the query

Methods inherited from class java.lang.Object

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

Constructor Detail

QueryImpl

public QueryImpl(SessionImpl session,
                 QueryListener listener)

Method Detail

setQuery

public void setQuery(Query query)

close

public void close()

Description copied from interface: Query

Close the query

Specified by:

close in interface Query

dispose

public void dispose()

changeParameters

public void changeParameters(QueryParameters parameters)

Description copied from interface: Query

Request a change of parameters

Specified by:

changeParameters in interface Query

Parameters:

parameters - the new requested parameters

updateParameters

public void updateParameters(QueryParameters parameters,
                             Set<String> valueTypes)

Description copied from interface: QueryListener

Reports a change in parameters

Specified by:

updateParameters in interface QueryListener

Parameters:

parameters - the new parameters, must not be null

valueTypes - the new value types to expect, must not be null or empty

updateData

public void updateData(int index,
                       Map<String,List<Double>> values,
                       List<ValueInformation> valueInformation)

Description copied from interface: QueryListener

Reports data update

All arrays must have the same size.

Specified by:

updateData in interface QueryListener

Parameters:

index - index from which the data update starts, must be greater or equal to zero and lower than the reported number of entries

values - the values that are updates, must not be null

valueInformation - the value information for the provided values. must not be null

updateState

public void updateState(QueryState state)

Description copied from interface: QueryListener

Updates the state of the query

Specified by:

updateState in interface QueryListener

Parameters:

state - the new state