Java™ Platform
Standard Ed. 6

javax.swing
Class DefaultComboBoxModel

java.lang.Object
  extended by javax.swing.AbstractListModel
      extended by javax.swing.DefaultComboBoxModel
All Implemented Interfaces:
Serializable, ComboBoxModel, ListModel, MutableComboBoxModel

public class DefaultComboBoxModel
extends AbstractListModel
implements MutableComboBoxModel, Serializable

The default model for combo boxes.


Field Summary
 
Fields inherited from class javax.swing.AbstractListModel
listenerList
 
Constructor Summary
DefaultComboBoxModel()
          Constructs an empty DefaultComboBoxModel object.
DefaultComboBoxModel(Object[] items)
          Constructs a DefaultComboBoxModel object initialized with an array of objects.
DefaultComboBoxModel(Vector<?> v)
          Constructs a DefaultComboBoxModel object initialized with a vector.
 
Method Summary
 void addElement(Object anObject)
          Adds an item at the end of the model.
 Object getElementAt(int index)
          Returns the value at the specified index.
 int getIndexOf(Object anObject)
          Returns the index-position of the specified object in the list.
 Object getSelectedItem()
          Returns the selected item
 int getSize()
          Returns the length of the list.
 void insertElementAt(Object anObject, int index)
          Adds an item at a specific index.
 void removeAllElements()
          Empties the list.
 void removeElement(Object anObject)
          Removes an item from the model.
 void removeElementAt(int index)
          Removes an item at a specific index.
 void setSelectedItem(Object anObject)
          Set the value of the selected item.
 
Methods inherited from class javax.swing.AbstractListModel
addListDataListener, fireContentsChanged, fireIntervalAdded, fireIntervalRemoved, getListDataListeners, getListeners, removeListDataListener
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 
Methods inherited from interface javax.swing.ListModel
addListDataListener, removeListDataListener
 

Constructor Detail

DefaultComboBoxModel

public DefaultComboBoxModel()
Constructs an empty DefaultComboBoxModel object.


DefaultComboBoxModel

public DefaultComboBoxModel(Object[] items)
Constructs a DefaultComboBoxModel object initialized with an array of objects.

Parameters:
items - an array of Object objects

DefaultComboBoxModel

public DefaultComboBoxModel(Vector<?> v)
Constructs a DefaultComboBoxModel object initialized with a vector.

Parameters:
v - a Vector object ...
Method Detail

setSelectedItem

public void setSelectedItem(Object anObject)
Set the value of the selected item. The selected item may be null.

Specified by:
setSelectedItem in interface ComboBoxModel
Parameters:
anObject - The combo box value or null for no selection.

getSelectedItem

public Object getSelectedItem()
Description copied from interface: ComboBoxModel
Returns the selected item

Specified by:
getSelectedItem in interface ComboBoxModel
Returns:
The selected item or null if there is no selection

getSize

public int getSize()
Description copied from interface: ListModel
Returns the length of the list.

Specified by:
getSize in interface ListModel
Returns:
the length of the list

getElementAt

public Object getElementAt(int index)
Description copied from interface: ListModel
Returns the value at the specified index.

Specified by:
getElementAt in interface ListModel
Parameters:
index - the requested index
Returns:
the value at index

getIndexOf

public int getIndexOf(Object anObject)
Returns the index-position of the specified object in the list.

Parameters:
anObject -
Returns:
an int representing the index position, where 0 is the first position

addElement

public void addElement(Object anObject)
Description copied from interface: MutableComboBoxModel
Adds an item at the end of the model. The implementation of this method should notify all registered ListDataListeners that the item has been added.

Specified by:
addElement in interface MutableComboBoxModel
Parameters:
anObject - the Object to be added

insertElementAt

public void insertElementAt(Object anObject,
                            int index)
Description copied from interface: MutableComboBoxModel
Adds an item at a specific index. The implementation of this method should notify all registered ListDataListeners that the item has been added.

Specified by:
insertElementAt in interface MutableComboBoxModel
Parameters:
anObject - the Object to be added
index - location to add the object

removeElementAt

public void removeElementAt(int index)
Description copied from interface: MutableComboBoxModel
Removes an item at a specific index. The implementation of this method should notify all registered ListDataListeners that the item has been removed.

Specified by:
removeElementAt in interface MutableComboBoxModel
Parameters:
index - location of object to be removed

removeElement

public void removeElement(Object anObject)
Description copied from interface: MutableComboBoxModel
Removes an item from the model. The implementation of this method should should notify all registered ListDataListeners that the item has been removed.

Specified by:
removeElement in interface MutableComboBoxModel
Parameters:
anObject - the Object to be removed

removeAllElements

public void removeAllElements()
Empties the list.


Java™ Platform
Standard Ed. 6

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