org.eclipse.scada.hd.ui.data

Class ServiceQueryBuffer

java.lang.Object

org.eclipse.scada.utils.beans.AbstractPropertyChange

org.eclipse.scada.hd.ui.data.AbstractQueryBuffer

org.eclipse.scada.hd.ui.data.ServiceQueryBuffer

public class ServiceQueryBuffer
extends AbstractQueryBuffer

A query buffer based on a tracked connection service

The query buffer must the opened using the open() call.

Author:

Jens Reimann

Field Summary

Fields inherited from class org.eclipse.scada.hd.ui.data.AbstractQueryBuffer

itemId, listeners, PROP_FILLED, PROP_PERCENT_FILLED, PROP_QUERY_PARAMETERS, PROP_REQUEST_PARAMETERS, PROP_STATE, PROP_VALUE_TYPES, query

Constructor Summary

Constructors

Constructor and Description
ServiceQueryBuffer(org.osgi.framework.BundleContext context, ConnectionRequest connectionRequest, String itemId, QueryParameters initialRequestParameters)
ServiceQueryBuffer(org.osgi.framework.BundleContext context, String connectionId, String itemId, QueryParameters initialRequestParameters)

Method Summary

Modifier and Type	Method and Description
void	close()
protected void	handleConnectionStateChange(Connection connection, ConnectionState state, Throwable error)
void	open()
protected void	setConnection(ConnectionService connectionService)

Methods inherited from class org.eclipse.scada.hd.ui.data.AbstractQueryBuffer

addQueryListener, changeProperties, closeQuery, createQuery, getFilled, getItemId, getPercentFilled, getQueryParameters, getRequestParameters, getState, getValueInformation, getValues, getValueTypes, removeQueryListener, setRequestParameters, updateData, updateParameters, updateState

Methods inherited from class org.eclipse.scada.utils.beans.AbstractPropertyChange

addPropertyChangeListener, addPropertyChangeListener, fireIndexedPropertyChange, fireIndexedPropertyChange, fireIndexedPropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, removePropertyChangeListener, removePropertyChangeListener

Methods inherited from class java.lang.Object

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

Constructor Detail

ServiceQueryBuffer

public ServiceQueryBuffer(org.osgi.framework.BundleContext context,
                          ConnectionRequest connectionRequest,
                          String itemId,
                          QueryParameters initialRequestParameters)

ServiceQueryBuffer

public ServiceQueryBuffer(org.osgi.framework.BundleContext context,
                          String connectionId,
                          String itemId,
                          QueryParameters initialRequestParameters)

Method Detail

open

public void open()

close

public void close()

Overrides:

close in class AbstractQueryBuffer

setConnection

protected void setConnection(ConnectionService connectionService)

handleConnectionStateChange

protected void handleConnectionStateChange(Connection connection,
                                           ConnectionState state,
                                           Throwable error)