org.eclipse.scada.ae.monitor.script

Class ScriptMonitor.InjectMasterHandler

java.lang.Object

org.eclipse.scada.da.master.AbstractMasterHandlerImpl

org.eclipse.scada.da.master.AbstractConfigurableMasterHandlerImpl

org.eclipse.scada.ae.monitor.script.MultiMasterHandler

org.eclipse.scada.ae.monitor.script.ScriptMonitor.InjectMasterHandler

All Implemented Interfaces:

MasterItemHandler

Enclosing class:

ScriptMonitor

public class ScriptMonitor.InjectMasterHandler
extends MultiMasterHandler

Field Summary

Fields inherited from class org.eclipse.scada.da.master.AbstractMasterHandlerImpl

eventAttributes

Constructor Summary

Constructors

Constructor and Description
ScriptMonitor.InjectMasterHandler(java.lang.String configurationId, poolTracker, int priority, caTracker, java.lang.String prefix, java.lang.String factoryId)

Method Summary

Methods

Modifier and Type	Method and Description
void	dataUpdate(java.util.Map<java.lang.String,java.lang.Object> context, DataItemValue.Builder value) Called when data changed or the handler chain changed.
protected WriteAttributeResults	handleUpdate(java.util.Map<java.lang.String,Variant> attributes, OperationParameters operationParameters) This method will be called on write request that have attributes which match our prefix.
protected void	reprocess()

Methods inherited from class org.eclipse.scada.da.master.AbstractConfigurableMasterHandlerImpl

getPrefixed, processWrite, updateConfiguration, updateConfiguration

Methods inherited from class org.eclipse.scada.da.master.AbstractMasterHandlerImpl

addItem, createTrackers, dispose, getMasterItems, removeItem, update

Methods inherited from class java.lang.Object

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

Constructor Detail

ScriptMonitor.InjectMasterHandler

public ScriptMonitor.InjectMasterHandler(java.lang.String configurationId,
                                  poolTracker,
                                 int priority,
                                  caTracker,
                                 java.lang.String prefix,
                                 java.lang.String factoryId)

Method Detail

dataUpdate

public void dataUpdate(java.util.Map<java.lang.String,java.lang.Object> context,
              DataItemValue.Builder value)

Description copied from interface: MasterItemHandler

Called when data changed or the handler chain changed.

The call gets a context object provided which each handler can use to store context information of one calculation run. Each calculation run gets a fresh new context. The context is intended to pass data from one handler to the next.

Although the value parameter is a mutable type, the handler may only make changes inside the dataUpdate method.

Specified by:

dataUpdate in interface MasterItemHandler

Specified by:

dataUpdate in class AbstractMasterHandlerImpl

Parameters:

context - the context object

value - the changed value

handleUpdate

protected WriteAttributeResults handleUpdate(java.util.Map<java.lang.String,Variant> attributes,
                                 OperationParameters operationParameters)
                                      throws java.lang.Exception

Description copied from class: AbstractConfigurableMasterHandlerImpl

This method will be called on write request that have attributes which match our prefix.

All attributes that are processed must be returned in the result

Specified by:

handleUpdate in class AbstractConfigurableMasterHandlerImpl

Parameters:

attributes - the filtered attributes that match our prefix

Returns:

the attribute result of the written attributes

Throws:

java.lang.Exception - if anything goes wrong

reprocess

protected void reprocess()

Overrides:

reprocess in class AbstractMasterHandlerImpl