com.prosysopc.ua.server.nodes

Class CallbackInstanceVariable

java.lang.Object

com.prosysopc.ua.nodes.AbstractUaNode

com.prosysopc.ua.server.nodes.ServerNode

com.prosysopc.ua.server.nodes.InstanceVariable

com.prosysopc.ua.server.nodes.CallbackInstanceVariable

All Implemented Interfaces:

UaInstance, UaNode, UaValueNode, UaVariable

Direct Known Subclasses:

CallbackInstanceProperty, ReflectiveInstanceVariable

public class CallbackInstanceVariable
extends InstanceVariable

An implementation of InstanceVariable. The variable will retrieve the current value using a callback method only.

Nested Class Summary

Nested classes/interfaces inherited from interface com.prosysopc.ua.nodes.UaNode

UaNode.Parameters

Field Summary

Fields

Modifier and Type	Field and Description
protected UaVariableCallback	callback

Fields inherited from class com.prosysopc.ua.server.nodes.ServerNode

eventListeners, INITIALIZATION_TIME, nodeManager, supportedAttributesMap

Constructor Summary

Constructors

Constructor and Description
CallbackInstanceVariable(NodeManagerUaNode nodeManager, NodeId nodeId, NodeId instanceDeclarationId) Create a new node, referring to an instance declaration node.
CallbackInstanceVariable(NodeManagerUaNode nodeManager, NodeId nodeId, UaVariable instanceDeclaration) Create a new node, referring to an instance declaration node.

Method Summary

Modifier and Type	Method and Description
protected void	doSetValue(DataValue value) Perform the actual value set.
UaVariableCallback	getCallback()
DataValue	getValue()
void	setCallback(UaVariableCallback callback)

Methods inherited from class com.prosysopc.ua.server.nodes.InstanceVariable

addReference, beforeAddReference, deleteReference, getAccessLevel, getArrayDimensions, getAttributes, getAttributesMap, getBrowseName, getComponent, getComponents, getDataType, getDataTypeId, getDescription, getDisplayName, getHistorizing, getMethod, getMinimumSamplingInterval, getNodeClass, getNodeVersionNode, getProperties, getProperty, getPropertyTypeNode, getReference, getReferencesAsList, getStatus, getTypeDefinition, getTypeDefinitionId, getTypeDefinitionReference, getUserAccessLevel, getUserWriteMask, getValueRank, getWriteMask, hasUserWriteAccess, hasWriteAccess, readAttribute, readAttribute, removeComponent, removeProperty, setAccessLevel, setArrayDimensions, setAttribute, setAttributes, setBrowseName, setDataType, setDataTypeId, setDescription, setDisplayName, setHistorizing, setMinimumSamplingInterval, setReferences, setStatus, setTypeDefinition, setTypeDefinitionId, setTypeDefinitionId, setUserAccessLevel, setUserWriteMask, setValue, setValue, setValueRank, setWriteMask, writeAttribute

Methods inherited from class com.prosysopc.ua.server.nodes.ServerNode

addComponent, addDataChangeListener, addEventListener, addNewReference, addNewReference, addOrganizes, addProperties, addProperty, addReference, addReference, addReference, addReference, addReference, afterAddReference, afterDeleteReference, dataChange, deleteReference, deleteReference, deleteReference, deleteReferences, doAddProperty, doDeleteReference, equals, findPlaceholders, fireDataChange, fireEvent, fireEventInParents, getAddressSpace, getDefaultBrowseName, getNodeId, getNodeManager, getNodeSetExtensions, getReferenceList, getReferences, getSupportedAttributes, getTargetNodes, getUaNodeId, hashCode, hasReference, initSupportedAttributes, isAddNotifierReferencesToServerObject, isFalseOrNull, isMandatory, isMonitoredForEvents, isTrueOrNull, isType, referenceTypeInherits, removeDataChangeListener, removeEventListener, setAddNotifierReferencesToServerObject, setNodeSetExtensions, supportsAttribute, toString, translateBrowsePathToNodeIds, validateHasEventSourceChain, validateHasEventSourceChain, writeAttributeValue

Methods inherited from class com.prosysopc.ua.nodes.AbstractUaNode

getForwardReferences, getInverseReferences, getReferences, getReferences, getUserData, referenceTypeInherits, setUserData

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface com.prosysopc.ua.nodes.UaVariable

addDataChangeListener, removeDataChangeListener

Methods inherited from interface com.prosysopc.ua.nodes.UaNode

addComponent, addOrganizes, addProperty, addReference, addReference, addReference, addReference, addReference, deleteReference, deleteReference, deleteReference, getAddressSpace, getBrowsePaths, getForwardReferences, getInverseReferences, getNodeId, getOrganizedNode, getOrganizedNodes, getReferences, getReferences, getSupportedAttributes, getUaBrowsePaths, getUaNodeId, getUserData, setUserData, supportsAttribute

Field Detail

callback

protected UaVariableCallback callback

Constructor Detail

CallbackInstanceVariable

public CallbackInstanceVariable(NodeManagerUaNode nodeManager,
                                NodeId nodeId,
                                NodeId instanceDeclarationId)
                         throws StatusException

Create a new node, referring to an instance declaration node.

Parameters:

nodeManager - The node manager to which the node is created.

nodeId - The ID of the new node.

instanceDeclarationId - The ID of the instance declaration node, which this node is referring to. I.e. the same variable or property as this one, but under the type, instead of the instance.

Throws:

StatusException - if instanceDeclarationId cannot be converted to a variable node

CallbackInstanceVariable

public CallbackInstanceVariable(NodeManagerUaNode nodeManager,
                                NodeId nodeId,
                                UaVariable instanceDeclaration)

Create a new node, referring to an instance declaration node.

Parameters:

nodeManager - The node manager to which the node is created.

nodeId - The ID of the new node.

instanceDeclaration - The instance declaration node, which this node is referring to. I.e. the same variable or property as this one, but under the type, instead of the instance.

Method Detail

getCallback

public UaVariableCallback getCallback()

Returns:

the callback

getValue

public DataValue getValue()

Returns:

The default Value for instances of this type.

setCallback

public void setCallback(UaVariableCallback callback)

doSetValue

protected void doSetValue(DataValue value)
                   throws StatusException

Description copied from class: InstanceVariable

Perform the actual value set.

Specified by:

doSetValue in class InstanceVariable

Throws:

StatusException