org.eclipse.scada.da.server.common.exporter

Class StaticObjectExporter<T>

java.lang.Object

org.eclipse.scada.da.server.common.exporter.AbstractObjectExporter

org.eclipse.scada.da.server.common.exporter.StaticObjectExporter<T>

Type Parameters:

T - the object type

All Implemented Interfaces:

Disposable

public class StaticObjectExporter<T>
extends AbstractObjectExporter

An object exporter which will not bind to change events from the bean

The object can be set using setTarget(Object) or setTarget(Object, Map) and object data will be extracted once.

The difference to the ObjectExporter is that this exporter must know the class of the target object in advance and can therefore create the data items in advance. Setting a target is a quick operation and does not destroy the data items in the process.

Author:

Jens Reimann

Field Summary

Fields inherited from class org.eclipse.scada.da.server.common.exporter.AbstractObjectExporter

attributes, factory, items

Constructor Summary

Constructors

Constructor and Description
StaticObjectExporter(ItemFactory itemFactory, Class<T> modelClazz, boolean readOnly, boolean nullIsError)
StaticObjectExporter(ItemFactory itemFactory, Class<T> modelClazz, boolean readOnly, boolean nullIsError, String prefix) Create a new static object exporter

Method Summary

Methods

Modifier and Type	Method and Description
protected Map<String,Variant>	getAdditionalAttributes()
protected Object	getTarget() Get the current target or null if there is none
void	setAttributes(Map<String,Variant> attributes)
void	setTarget(T target)
void	setTarget(T target, Map<String,Variant> attributes)

Methods inherited from class org.eclipse.scada.da.server.common.exporter.AbstractObjectExporter

createDataItems, dispose, fillAttributes, findAnnotation, getOptions, initAttribute, makeItemName, updateAttribute, updateItemsFromTarget, writeAttribute

Methods inherited from class java.lang.Object

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

Constructor Detail

StaticObjectExporter

public StaticObjectExporter(ItemFactory itemFactory,
                    Class<T> modelClazz,
                    boolean readOnly,
                    boolean nullIsError,
                    String prefix)

Create a new static object exporter

Parameters:

itemFactory - the factory used to create items. This factory is disposed when the object exporter is disposed.

modelClazz - the class of the object to export

readOnly - set to true so all fields will be read-only

nullIsError - set to true to mark fields that are null with an error attribute

prefix - a local prefix

StaticObjectExporter

public StaticObjectExporter(ItemFactory itemFactory,
                    Class<T> modelClazz,
                    boolean readOnly,
                    boolean nullIsError)

Method Detail

setTarget

public void setTarget(T target,
             Map<String,Variant> attributes)

setTarget

public void setTarget(T target)

setAttributes

public void setAttributes(Map<String,Variant> attributes)

getAdditionalAttributes

protected Map<String,Variant> getAdditionalAttributes()

Overrides:

getAdditionalAttributes in class AbstractObjectExporter

getTarget

protected Object getTarget()

Description copied from class: AbstractObjectExporter

Get the current target or null if there is none

Specified by:

getTarget in class AbstractObjectExporter

Returns:

the current target