org.eclipse.scada.da.server.common.memory

Class MemoryDeviceDataitem

java.lang.Object

org.eclipse.scada.da.server.common.DataItemBase

org.eclipse.scada.da.server.common.chain.DataItemBaseChained

org.eclipse.scada.da.server.common.chain.DataItemInputChained

org.eclipse.scada.da.server.common.chain.DataItemInputOutputChained

org.eclipse.scada.da.server.common.memory.MemoryDeviceDataitem

All Implemented Interfaces:

DataItem

public class MemoryDeviceDataitem
extends DataItemInputOutputChained

Field Summary

Fields inherited from class org.eclipse.scada.da.server.common.chain.DataItemInputChained

primaryValue, secondaryValue

Fields inherited from class org.eclipse.scada.da.server.common.chain.DataItemBaseChained

chain, executor, primaryAttributes, secondaryAttributes

Fields inherited from class org.eclipse.scada.da.server.common.DataItemBase

listener

Constructor Summary

Constructors

Constructor and Description
MemoryDeviceDataitem(String itemId, Executor executor, ScalarVariable variable)

Method Summary

Methods

Modifier and Type	Method and Description
protected WriteAttributeResults	handleUnhandledAttributes(WriteAttributeResults initialResults, Map<String,org.eclipse.scada.core.Variant> attributes) Handle all unhandled set attribute requests
protected org.eclipse.scada.utils.concurrent.NotifyFuture<WriteResult>	startWriteCalculatedValue(org.eclipse.scada.core.Variant value, OperationParameters operationParameters)

Methods inherited from class org.eclipse.scada.da.server.common.chain.DataItemInputOutputChained

startWriteValue

Methods inherited from class org.eclipse.scada.da.server.common.chain.DataItemInputChained

getCacheAttributes, getCacheValue, process, readValue, updateData

Methods inherited from class org.eclipse.scada.da.server.common.chain.DataItemBaseChained

addChainElement, addChainElement, getAttributes, getChainCopy, processSetAttributes, removeChainElement, setChain, startSetAttributes

Methods inherited from class org.eclipse.scada.da.server.common.DataItemBase

getInformation, handleListenerChange, notifyData, notifyData, setListener

Methods inherited from class java.lang.Object

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

Constructor Detail

MemoryDeviceDataitem

public MemoryDeviceDataitem(String itemId,
                    Executor executor,
                    ScalarVariable variable)

Method Detail

handleUnhandledAttributes

protected WriteAttributeResults handleUnhandledAttributes(WriteAttributeResults initialResults,
                                              Map<String,org.eclipse.scada.core.Variant> attributes)

Description copied from class: DataItemBaseChained

Handle all unhandled set attribute requests

Overrides:

handleUnhandledAttributes in class DataItemBaseChained

Parameters:

initialResults - the result set

attributes - the attributes to set

Returns:

the final result

startWriteCalculatedValue

protected org.eclipse.scada.utils.concurrent.NotifyFuture<WriteResult> startWriteCalculatedValue(org.eclipse.scada.core.Variant value,
                                                                                     OperationParameters operationParameters)

Specified by:

startWriteCalculatedValue in class DataItemInputOutputChained