java.lang.Object
javax.swing.AbstractListModel<E>
javax.swing.DefaultComboBoxModel<E>
- Type Parameters:
E
- the type of the elements of this model
- All Implemented Interfaces:
Serializable
,ComboBoxModel<E>
,ListModel<E>
,MutableComboBoxModel<E>
public class DefaultComboBoxModel<E>
extends AbstractListModel<E>
implements MutableComboBoxModel<E>, Serializable
The default model for combo boxes.
- Since:
- 1.2
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Field Summary
Fields declared in class javax.swing.AbstractListModel
listenerList
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Constructor Summary
ConstructorDescriptionConstructs an empty DefaultComboBoxModel object.DefaultComboBoxModel
(E[] items) Constructs a DefaultComboBoxModel object initialized with an array of objects.Constructs a DefaultComboBoxModel object initialized with a vector. -
Method Summary
Modifier and TypeMethodDescriptionvoid
addAll
(int index, Collection<? extends E> c) Adds all of the elements present in the collection, starting from the specified index.void
addAll
(Collection<? extends E> c) Adds all of the elements present in the collection.void
addElement
(E anObject) Adds an item at the end of the model.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.Returns the selected itemint
getSize()
Returns the length of the list.void
insertElementAt
(E anObject, int index) Adds an item at a specific index.void
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 declared in class javax.swing.AbstractListModel
addListDataListener, fireContentsChanged, fireIntervalAdded, fireIntervalRemoved, getListDataListeners, getListeners, removeListDataListener
Methods declared in class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
Methods declared in interface javax.swing.ListModel
addListDataListener, removeListDataListener
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Constructor Details
-
DefaultComboBoxModel
public DefaultComboBoxModel()Constructs an empty DefaultComboBoxModel object. -
DefaultComboBoxModel
Constructs a DefaultComboBoxModel object initialized with an array of objects.- Parameters:
items
- an array of Object objects
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DefaultComboBoxModel
Constructs a DefaultComboBoxModel object initialized with a vector.- Parameters:
v
- a Vector object ...
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Method Details
-
setSelectedItem
Set the value of the selected item. The selected item may be null.- Specified by:
setSelectedItem
in interfaceComboBoxModel<E>
- Parameters:
anObject
- The combo box value or null for no selection.
-
getSelectedItem
Description copied from interface:ComboBoxModel
Returns the selected item- Specified by:
getSelectedItem
in interfaceComboBoxModel<E>
- Returns:
- The selected item or
null
if there is no selection
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getSize
public int getSize()Description copied from interface:ListModel
Returns the length of the list. -
getElementAt
Description copied from interface:ListModel
Returns the value at the specified index.- Specified by:
getElementAt
in interfaceListModel<E>
- Parameters:
index
- the requested index- Returns:
- the value at
index
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getIndexOf
Returns the index-position of the specified object in the list.- Parameters:
anObject
- the object to return the index of- Returns:
- an int representing the index position, where 0 is the first position
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addElement
Description copied from interface:MutableComboBoxModel
Adds an item at the end of the model. The implementation of this method should notify all registeredListDataListener
s that the item has been added.- Specified by:
addElement
in interfaceMutableComboBoxModel<E>
- Parameters:
anObject
- the item to be added
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insertElementAt
Description copied from interface:MutableComboBoxModel
Adds an item at a specific index. The implementation of this method should notify all registeredListDataListener
s that the item has been added.- Specified by:
insertElementAt
in interfaceMutableComboBoxModel<E>
- Parameters:
anObject
- the item to be addedindex
- location to add the object
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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 registeredListDataListener
s that the item has been removed.- Specified by:
removeElementAt
in interfaceMutableComboBoxModel<E>
- Parameters:
index
- location of the item to be removed
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removeElement
Description copied from interface:MutableComboBoxModel
Removes an item from the model. The implementation of this method should should notify all registeredListDataListener
s that the item has been removed.- Specified by:
removeElement
in interfaceMutableComboBoxModel<E>
- Parameters:
anObject
- theObject
to be removed
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removeAllElements
public void removeAllElements()Empties the list. -
addAll
Adds all of the elements present in the collection.- Parameters:
c
- the collection which contains the elements to add- Throws:
NullPointerException
- ifc
is null
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addAll
Adds all of the elements present in the collection, starting from the specified index.- Parameters:
index
- index at which to insert the first element from the specified collectionc
- the collection which contains the elements to add- Throws:
ArrayIndexOutOfBoundsException
- ifindex
does not fall within the range of number of elements currently heldNullPointerException
- ifc
is null
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