org.apache.wicket.model

Class Model<T extends Serializable>

java.lang.Object

org.apache.wicket.model.Model<T>

Type Parameters:

T - The type of the Model Object

All Implemented Interfaces:

Serializable, IDetachable, IModel<T>, IObjectClassAwareModel<T>, IClusterable

public class Model<T extends Serializable>
extends Object
implements IObjectClassAwareModel<T>

Model is the basic implementation of an IModel. It just wraps a simple model object. The model object must be serializable, as it is stored in the session. If you have large objects to store, consider using LoadableDetachableModel instead of this class.

Author:

Chris Turner, Eelco Hillenius

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
Model() Construct the model without providing an object.
Model(T object) Construct the model, setting the given object as the wrapped object.

Method Summary

Methods

Modifier and Type	Method and Description
void	detach() Detaches model after use.
boolean	equals(Object obj)
T	getObject() Gets the model object.
Class<T>	getObjectClass() Returns the class of model object
int	hashCode()
static <T extends Serializable> Model<T>	of() Factory methods for Model which uses type inference to make code shorter.
static <C> IModel<Collection<C>>	of(Collection<C> collection) Factory method for models that contain collections.
static <T> IModel<T>	of(IModel<?> model) Supresses generics warning when converting model types
static <T extends Serializable> Model<T>	of(T object) Factory methods for Model which uses type inference to make code shorter.
static <C> IModel<List<C>>	ofList(List<C> list) Factory method for models that contain lists.
static <K,V> IModel<Map<K,V>>	ofMap(Map<K,V> map) Factory method for models that contain maps.
static <C> IModel<Set<C>>	ofSet(Set<C> set) Factory method for models that contain sets.
void	setObject(T object) Set the model object; calls setObject(java.io.Serializable).
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

Model

public Model()

Construct the model without providing an object.

Model

public Model(T object)

Construct the model, setting the given object as the wrapped object.

Parameters:

object - The model object proper

Method Detail

ofList

public static <C> IModel<List<C>> ofList(List<C> list)

Factory method for models that contain lists. This factory method will automatically rebuild a nonserializable list into a serializable one.

Type Parameters:

C - model type

Parameters:

list - The List, which may or may not be Serializable

Returns:

A Model object wrapping the List

ofMap

public static <K,V> IModel<Map<K,V>> ofMap(Map<K,V> map)

Factory method for models that contain maps. This factory method will automatically rebuild a nonserializable map into a serializable one.

Type Parameters:

K - key type in map

V - value type in map

Parameters:

map - The Map, which may or may not be Serializable

Returns:

A Model object wrapping the Map

ofSet

public static <C> IModel<Set<C>> ofSet(Set<C> set)

Factory method for models that contain sets. This factory method will automatically rebuild a nonserializable set into a serializable one.

Type Parameters:

C - model type

Parameters:

set - The Set, which may or may not be Serializable

Returns:

A Model object wrapping the Set

of

public static <C> IModel<Collection<C>> of(Collection<C> collection)

Factory method for models that contain collections. This factory method will automatically rebuild a nonserializable collection into a serializable ArrayList.

Type Parameters:

C - model type

Parameters:

collection - The Collection, which may or may not be Serializable

Returns:

A Model object wrapping the Set

of

public static <T extends Serializable> Model<T> of(T object)

Factory methods for Model which uses type inference to make code shorter. Equivalent to new Model(object).

Type Parameters:

T -

Parameters:

object -

Returns:

Model that contains object

of

public static <T> IModel<T> of(IModel<?> model)

Supresses generics warning when converting model types

Type Parameters:

T -

Parameters:

model -

Returns:

model

of

public static <T extends Serializable> Model<T> of()

Factory methods for Model which uses type inference to make code shorter. Equivalent to new Model().

Type Parameters:

T -

Returns:

Model that contains object

getObject

public T getObject()

Description copied from interface: IModel

Gets the model object.

Specified by:

getObject in interface IModel<T extends Serializable>

Returns:

The model object

See Also:

IModel.getObject()

setObject

public void setObject(T object)

Set the model object; calls setObject(java.io.Serializable). The model object must be serializable, as it is stored in the session

Specified by:

setObject in interface IModel<T extends Serializable>

Parameters:

object - the model object

See Also:

IModel.setObject(Object)

detach

public void detach()

Description copied from interface: IDetachable

Detaches model after use. This is generally used to null out transient references that can be re-attached later.

Specified by:

detach in interface IDetachable

See Also:

IDetachable.detach()

toString

public String toString()

Overrides:

toString in class Object

See Also:

Object.toString()

hashCode

public int hashCode()

Overrides:

hashCode in class Object

equals

public boolean equals(Object obj)

Overrides:

equals in class Object

getObjectClass

public Class<T> getObjectClass()

Description copied from interface: IObjectClassAwareModel

Returns the class of model object

Specified by:

getObjectClass in interface IObjectClassAwareModel<T extends Serializable>

Returns:

class of model object or null if the class couldn't be determined