org.eclipse.scada.da.ui.connection.data

Class DataItemHolder

java.lang.Object

org.eclipse.scada.da.ui.connection.data.AbstractItemHolder

org.eclipse.scada.da.ui.connection.data.DataItemHolder

public class DataItemHolder
extends AbstractItemHolder

An item holder providing changes by DataItemValue

Field Summary

Fields inherited from class org.eclipse.scada.da.ui.connection.data.AbstractItemHolder

item

Constructor Summary

Constructors

Constructor and Description
DataItemHolder(BundleContext context, Item item)
DataItemHolder(BundleContext context, Item item, DataSourceListener listener)

Method Summary

Methods

Modifier and Type	Method and Description
protected void	bindConnection(org.eclipse.scada.da.connection.provider.ConnectionService connectionService)
protected void	fireListenerChange(org.eclipse.scada.da.client.DataItemValue value)
protected void	unbindConnection()
protected void	update(Observable o, Object arg)

Methods inherited from class org.eclipse.scada.da.ui.connection.data.AbstractItemHolder

createRequest, dispose, fireConnectionChange, fireConnectionStateChange, getItem, init, setConnection, startWrite, startWriteAttributes, waitForConnection, write, write, writeAtrtibutes, writeAtrtibutes

Methods inherited from class java.lang.Object

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

Constructor Detail

DataItemHolder

public DataItemHolder(BundleContext context,
              Item item)

Since:

0.2.0

DataItemHolder

public DataItemHolder(BundleContext context,
              Item item,
              DataSourceListener listener)

Method Detail

update

protected void update(Observable o,
          Object arg)

fireListenerChange

protected void fireListenerChange(org.eclipse.scada.da.client.DataItemValue value)

bindConnection

protected void bindConnection(org.eclipse.scada.da.connection.provider.ConnectionService connectionService)

Overrides:

bindConnection in class AbstractItemHolder

unbindConnection

protected void unbindConnection()

Overrides:

unbindConnection in class AbstractItemHolder