org.opensingular.lib.wicket.util.model

Class ReloadableDetachableModel<T>

java.lang.Object

org.opensingular.lib.wicket.util.model.ReloadableDetachableModel<T>

All Implemented Interfaces:

Serializable, org.apache.wicket.model.IDetachable, org.apache.wicket.model.IModel<T>, org.apache.wicket.util.io.IClusterable

Direct Known Subclasses:

SupplierReloadableDetachableModel

public abstract class ReloadableDetachableModel<T>
extends Object
implements org.apache.wicket.model.IModel<T>

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
ReloadableDetachableModel() Construct.
ReloadableDetachableModel(T object) This constructor is used if you already have the object retrieved and want to wrap it with a detachable model.

Method Summary

Modifier and Type	Method and Description
void	detach()
T	getObject()
boolean	isAttached() Gets the attached status of this model instance
protected abstract T	load() Loads and returns the (temporary) model object.
protected boolean	needsReload(T cachedObject)
protected void	onAttach() Attaches to the current request.
protected void	onDetach() Detaches from the current request.
void	setObject(T object) Manually loads the model with the specified object.
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

ReloadableDetachableModel

public ReloadableDetachableModel()

Construct.

ReloadableDetachableModel

public ReloadableDetachableModel(T object)

This constructor is used if you already have the object retrieved and want to wrap it with a detachable model.

Parameters:

object - retrieved instance of the detachable object

Method Detail

detach

public void detach()

Specified by:

detach in interface org.apache.wicket.model.IDetachable

See Also:

IDetachable.detach()

getObject

public final T getObject()

Specified by:

getObject in interface org.apache.wicket.model.IModel<T>

See Also:

IModel.getObject()

needsReload

protected boolean needsReload(T cachedObject)

isAttached

public final boolean isAttached()

Gets the attached status of this model instance

Returns:

true if the model is attached, false otherwise

toString

public String toString()

Overrides:

toString in class Object

See Also:

Object.toString()

load

protected abstract T load()

Loads and returns the (temporary) model object.

Returns:

the (temporary) model object

onAttach

protected void onAttach()

Attaches to the current request. Implement this method with custom behavior, such as loading the model object.

onDetach

protected void onDetach()

Detaches from the current request. Implement this method with custom behavior, such as setting the model object to null.

setObject

public void setObject(T object)

Manually loads the model with the specified object. Subsequent calls to getObject() will return object until detach() is called.

Specified by:

setObject in interface org.apache.wicket.model.IModel<T>

Parameters:

object - The object to set into the model