lava.mv
Class MvModelExtra

java.lang.Object
  |
  +--lava.mv.MvModel
        |
        +--lava.mv.MvModelExtra

public abstract class MvModelExtra

extends MvModel

Abstract base class for models with arbitrary property set.

Details: I am an MvModel that supports arbitrary properties. Many views of minimal models need to cache away information related to their particular renderings of the model. I provide a safe and easy mechanism for doing so. Views can extend the data elements represented by my model without polluting the model from the perspective of other views.

Since:

1998.06.08

See Also:

MvModel, IMvView

Constructor Summary

protected	MvModelExtra() Same as superclass.
protected	MvModelExtra(java.lang.Object id) Same as superclass.

Method Summary

java.lang.Object	getProperty(java.lang.Object key) Removes property.
void	setProperty(java.lang.Object key, java.lang.Object value) Adds property.

Methods inherited from class lava.mv.MvModel

getEventDispatcher, notifyViews, notifyViews, registerView, setEventDispatcher, unregisterView

Methods inherited from class java.lang.Object

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

Constructor Detail

MvModelExtra

protected MvModelExtra(java.lang.Object id)

Same as superclass.

Details: This constructor does the same thing as the superclass' constructor.

Parameters:

id - parameter passed to superconstructor

MvModelExtra

protected MvModelExtra()

Same as superclass.

Details: This constructor does the same thing as the superclass' constructor.

Method Detail

setProperty

public void setProperty(java.lang.Object key,
                        java.lang.Object value)

Adds property.

Details: setProperty adds the given (key, value) combination to properties.

Parameters:

key - the key

value - the value

Throws:

NullPointerException - if key is null

getProperty

public java.lang.Object getProperty(java.lang.Object key)

Removes property.

Details: getProperty retrieves the property associated with the given key.

Parameters:

key - the key

Returns:

the property

Throws:

NullPointerException - if key is null