Module org.apache.wicket.core
Package 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:

  • Constructor Details

    • 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 Details

    • 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 non-serializable 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 non-serializable 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 non-serializable 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 non-serializable 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 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

    • 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:

    • 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
      Specified by:
      detach in interface IModel<T extends Serializable>

    • toString

      public String toString()
      Overrides:
      toString in class Object

    • 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