Package org.apache.wicket.model

Class LambdaModel<T>

java.lang.Object

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

Type Parameters:

T - The type of the Model Object

All Implemented Interfaces:

Serializable, IDetachable, IModel<T>, IClusterable

public abstract class LambdaModel<T>
extends Object
implements IModel<T>

LambdaModel is a basic implementation of an IModel that uses a serializable Supplier to get the object and Consumer to set it.

See Also:

• Serialized Form

Method Summary

Modifier and Type	Method	Description
static <X, R> IModel<R>	of(IModel<X> target, org.danekja.java.util.function.serializable.SerializableFunction<X,R> getter, org.danekja.java.util.function.serializable.SerializableBiConsumer<X,R> setter)	Create a LambdaModel for a given target.
static <R> IModel<R>	of(org.danekja.java.util.function.serializable.SerializableSupplier<R> getter)	Create a read-only IModel.
static <R> IModel<R>	of(org.danekja.java.util.function.serializable.SerializableSupplier<R> getter, org.danekja.java.util.function.serializable.SerializableConsumer<R> setter)	Create a LambdaModel.
void	setObject(T t)	Sets the model object.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.wicket.model.IModel

as, combineWith, detach, filter, flatMap, getObject, isPresent, map, orElse, orElseGet

Method Details

setObject

public void setObject(T t)

Description copied from interface: IModel

Sets the model object.

Specified by:

setObject in interface IModel<T>

Parameters:

t - The model object

of

public static <R> IModel<R> of(org.danekja.java.util.function.serializable.SerializableSupplier<R> getter)

Create a read-only IModel. Usage:

 
     LambdaModel.of(person::getName)
 
 

Note that IModel is a FunctionalInterface and you can also use a lambda directly as a model.

Type Parameters:

R - model object type

Parameters:

getter - used to get value

Returns:

model

of

public static <R> IModel<R> of(org.danekja.java.util.function.serializable.SerializableSupplier<R> getter,
 org.danekja.java.util.function.serializable.SerializableConsumer<R> setter)

Create a LambdaModel. Usage:

 
 	LambdaModel.of(person::getName, person::setName)
 
 

Type Parameters:

R - model object type

Parameters:

getter - used to get value

setter - used to set value

Returns:

model

of

public static <X,
R> IModel<R> of(IModel<X> target,
 org.danekja.java.util.function.serializable.SerializableFunction<X,R> getter,
 org.danekja.java.util.function.serializable.SerializableBiConsumer<X,R> setter)

Create a LambdaModel for a given target. Usage:

 
 	LambdaModel.of(personModel, Person::getName, Person::setName)
 
 

The target model will be detached automatically.

Type Parameters:

X - target model object type

R - model object type

Parameters:

target - target for getter and setter

getter - used to get a value

setter - used to set a value

Returns:

model

See Also:

• IModel.flatMap(SerializableFunction)