com.digitalpetri.opcua.sdk.server.items

Class MonitoredDataItem

java.lang.Object

com.digitalpetri.opcua.sdk.server.items.BaseMonitoredItem<com.digitalpetri.opcua.stack.core.types.builtin.DataValue>

com.digitalpetri.opcua.sdk.server.items.MonitoredDataItem

All Implemented Interfaces:

DataItem, MonitoredItem

public class MonitoredDataItem
extends BaseMonitoredItem<com.digitalpetri.opcua.stack.core.types.builtin.DataValue>
implements DataItem

Field Summary

Fields inherited from class com.digitalpetri.opcua.sdk.server.items.BaseMonitoredItem

clientHandle, discardOldest, id, monitoringMode, queue, queueSize, readValueId, samplingInterval, subscriptionId, timestamps, triggered, triggeredItems

Constructor Summary

Constructors

Constructor and Description

MonitoredDataItem(com.digitalpetri.opcua.stack.core.types.builtin.unsigned.UInteger id, com.digitalpetri.opcua.stack.core.types.builtin.unsigned.UInteger subscriptionId, com.digitalpetri.opcua.stack.core.types.structured.ReadValueId readValueId, com.digitalpetri.opcua.stack.core.types.enumerated.MonitoringMode monitoringMode, com.digitalpetri.opcua.stack.core.types.enumerated.TimestampsToReturn timestamps, com.digitalpetri.opcua.stack.core.types.builtin.unsigned.UInteger clientHandle, double samplingInterval, com.digitalpetri.opcua.stack.core.types.builtin.ExtensionObject filter, com.digitalpetri.opcua.stack.core.types.builtin.unsigned.UInteger queueSize, boolean discardOldest)

Method Summary

Modifier and Type	Method and Description
void	clearLastValue()
protected void	enqueue(com.digitalpetri.opcua.stack.core.types.builtin.DataValue value)
com.digitalpetri.opcua.stack.core.types.builtin.ExtensionObject	getFilterResult()
protected void	installFilter(com.digitalpetri.opcua.stack.core.types.builtin.ExtensionObject filterXo)
boolean	isSamplingEnabled()
void	setMonitoringMode(com.digitalpetri.opcua.stack.core.types.enumerated.MonitoringMode monitoringMode)
void	setQuality(com.digitalpetri.opcua.stack.core.types.builtin.StatusCode quality) Apply a new StatusCode to the last value that passed the filter and then attempt to set the derived value.
void	setValue(com.digitalpetri.opcua.stack.core.types.builtin.DataValue value) Set the latest sampled value.
protected com.digitalpetri.opcua.stack.core.types.structured.MonitoredItemNotification	wrapQueueValue(com.digitalpetri.opcua.stack.core.types.builtin.DataValue value)

Methods inherited from class com.digitalpetri.opcua.sdk.server.items.BaseMonitoredItem

getClientHandle, getId, getMonitoringMode, getNotifications, getQueueSize, getReadValueId, getSamplingInterval, getSubscriptionId, getTimestampsToReturn, getTriggeredItems, hasNotifications, isDiscardOldest, isTriggered, modify, setQueueSize

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.digitalpetri.opcua.sdk.server.api.DataItem

getSamplingInterval

Methods inherited from interface com.digitalpetri.opcua.sdk.server.api.MonitoredItem

getId, getReadValueId, getSubscriptionId, getTimestampsToReturn

Constructor Detail

MonitoredDataItem

public MonitoredDataItem(com.digitalpetri.opcua.stack.core.types.builtin.unsigned.UInteger id,
                         com.digitalpetri.opcua.stack.core.types.builtin.unsigned.UInteger subscriptionId,
                         com.digitalpetri.opcua.stack.core.types.structured.ReadValueId readValueId,
                         com.digitalpetri.opcua.stack.core.types.enumerated.MonitoringMode monitoringMode,
                         com.digitalpetri.opcua.stack.core.types.enumerated.TimestampsToReturn timestamps,
                         com.digitalpetri.opcua.stack.core.types.builtin.unsigned.UInteger clientHandle,
                         double samplingInterval,
                         com.digitalpetri.opcua.stack.core.types.builtin.ExtensionObject filter,
                         com.digitalpetri.opcua.stack.core.types.builtin.unsigned.UInteger queueSize,
                         boolean discardOldest)
                  throws com.digitalpetri.opcua.stack.core.UaException

Throws:

com.digitalpetri.opcua.stack.core.UaException

Method Detail

setValue

public void setValue(com.digitalpetri.opcua.stack.core.types.builtin.DataValue value)

Description copied from interface: DataItem

Set the latest sampled value.

Specified by:

setValue in interface DataItem

Parameters:

value - the latest sampled value.

enqueue

protected void enqueue(com.digitalpetri.opcua.stack.core.types.builtin.DataValue value)

Specified by:

enqueue in class BaseMonitoredItem<com.digitalpetri.opcua.stack.core.types.builtin.DataValue>

setQuality

public void setQuality(com.digitalpetri.opcua.stack.core.types.builtin.StatusCode quality)

Description copied from interface: DataItem

Apply a new StatusCode to the last value that passed the filter and then attempt to set the derived value.

Specified by:

setQuality in interface DataItem

Parameters:

quality - the StatusCode to apply.

isSamplingEnabled

public boolean isSamplingEnabled()

Specified by:

isSamplingEnabled in interface MonitoredItem

Returns:

true if this item should be sampled.

setMonitoringMode

public void setMonitoringMode(com.digitalpetri.opcua.stack.core.types.enumerated.MonitoringMode monitoringMode)

Overrides:

setMonitoringMode in class BaseMonitoredItem<com.digitalpetri.opcua.stack.core.types.builtin.DataValue>

clearLastValue

public void clearLastValue()

installFilter

protected void installFilter(com.digitalpetri.opcua.stack.core.types.builtin.ExtensionObject filterXo)
                      throws com.digitalpetri.opcua.stack.core.UaException

Specified by:

installFilter in class BaseMonitoredItem<com.digitalpetri.opcua.stack.core.types.builtin.DataValue>

Throws:

com.digitalpetri.opcua.stack.core.UaException

getFilterResult

public com.digitalpetri.opcua.stack.core.types.builtin.ExtensionObject getFilterResult()

Specified by:

getFilterResult in class BaseMonitoredItem<com.digitalpetri.opcua.stack.core.types.builtin.DataValue>

wrapQueueValue

protected com.digitalpetri.opcua.stack.core.types.structured.MonitoredItemNotification wrapQueueValue(com.digitalpetri.opcua.stack.core.types.builtin.DataValue value)

Specified by:

wrapQueueValue in class BaseMonitoredItem<com.digitalpetri.opcua.stack.core.types.builtin.DataValue>