AbstractListModel (Java Platform SE 6) (original) (raw)

javax.swing

Class AbstractListModel

java.lang.Object javax.swing.AbstractListModel

All Implemented Interfaces:

Serializable, ListModel

Direct Known Subclasses:

BasicDirectoryModel, DefaultComboBoxModel, DefaultListModel, MetalFileChooserUI.DirectoryComboBoxModel, MetalFileChooserUI.FilterComboBoxModel

public abstract class AbstractListModel

extends Object

implements ListModel, Serializable

The abstract definition for the data model that provides a List with its contents.

Warning: Serialized objects of this class will not be compatible with future Swing releases. The current serialization support is appropriate for short term storage or RMI between applications running the same version of Swing. As of 1.4, support for long term storage of all JavaBeansTM has been added to the java.beans package. Please see XMLEncoder.

listenerList

protected EventListenerList listenerList

AbstractListModel

public AbstractListModel()

addListDataListener

public void addListDataListener(ListDataListener l)

Adds a listener to the list that's notified each time a change to the data model occurs.

Specified by:

[addListDataListener](../../javax/swing/ListModel.html#addListDataListener%28javax.swing.event.ListDataListener%29) in interface [ListModel](../../javax/swing/ListModel.html "interface in javax.swing")

Parameters:

l - the ListDataListener to be added

removeListDataListener

public void removeListDataListener(ListDataListener l)

Removes a listener from the list that's notified each time a change to the data model occurs.

Specified by:

[removeListDataListener](../../javax/swing/ListModel.html#removeListDataListener%28javax.swing.event.ListDataListener%29) in interface [ListModel](../../javax/swing/ListModel.html "interface in javax.swing")

Parameters:

l - the ListDataListener to be removed

getListDataListeners

public ListDataListener[] getListDataListeners()

Returns an array of all the list data listeners registered on this AbstractListModel.

Returns:

all of this model's ListDataListeners, or an empty array if no list data listeners are currently registered

Since:

1.4

See Also:

addListDataListener(javax.swing.event.ListDataListener), removeListDataListener(javax.swing.event.ListDataListener)

fireContentsChanged

protected void fireContentsChanged(Object source, int index0, int index1)

AbstractListModel subclasses must call this methodafter one or more elements of the list change. The changed elements are specified by the closed interval index0, index1 -- the endpoints are included. Note that index0 need not be less than or equal to index1.

Parameters:

source - the ListModel that changed, typically "this"

index0 - one end of the new interval

index1 - the other end of the new interval

See Also:

EventListenerList, DefaultListModel

fireIntervalAdded

protected void fireIntervalAdded(Object source, int index0, int index1)

AbstractListModel subclasses must call this methodafter one or more elements are added to the model. The new elements are specified by a closed interval index0, index1 -- the enpoints are included. Note that index0 need not be less than or equal to index1.

Parameters:

source - the ListModel that changed, typically "this"

index0 - one end of the new interval

index1 - the other end of the new interval

See Also:

EventListenerList, DefaultListModel

fireIntervalRemoved

protected void fireIntervalRemoved(Object source, int index0, int index1)

AbstractListModel subclasses must call this methodafter one or more elements are removed from the model. index0 and index1 are the end points of the interval that's been removed. Note that index0 need not be less than or equal to index1.

Parameters:

source - the ListModel that changed, typically "this"

index0 - one end of the removed interval, including index0

index1 - the other end of the removed interval, including index1

See Also:

EventListenerList, DefaultListModel

getListeners

public <T extends EventListener> T[] getListeners(Class listenerType)

Returns an array of all the objects currently registered as_Foo_Listeners upon this model._Foo_Listeners are registered using the add_Foo_Listener method.

You can specify the listenerType argument with a class literal, such as _Foo_Listener.class. For example, you can query a list modelm for its list data listeners with the following code:

ListDataListener[] ldls = (ListDataListener[])(m.getListeners(ListDataListener.class));

If no such listeners exist, this method returns an empty array.

Parameters:

listenerType - the type of listeners requested; this parameter should specify an interface that descends from java.util.EventListener

Returns:

an array of all objects registered as_Foo_Listeners on this model, or an empty array if no such listeners have been added

Throws:

[ClassCastException](../../java/lang/ClassCastException.html "class in java.lang") - if listenerType doesn't specify a class or interface that implementsjava.util.EventListener

Since:

1.3

See Also:

getListDataListeners()

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