Module java.desktop
Package javax.swing

Class DefaultComboBoxModel<E>

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

  • Constructor Details

    • DefaultComboBoxModel

      public DefaultComboBoxModel()
      Constructs an empty DefaultComboBoxModel object.

    • DefaultComboBoxModel

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

    • DefaultComboBoxModel

      public DefaultComboBoxModel(Vector<E> v)
      Constructs a DefaultComboBoxModel object initialized with a vector.
      Parameters:
      v - a Vector object ...

  • Method Details

    • 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<E>
      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<E>
      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<E>
      Returns:
      the length of the list

    • getElementAt

      public E getElementAt(int index)
      Description copied from interface: ListModel
      Returns the value at the specified index.
      Specified by:
      getElementAt in interface ListModel<E>
      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 - the object to return the index of
      Returns:
      an int representing the index position, where 0 is the first position

    • addElement

      public void addElement(E 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<E>
      Parameters:
      anObject - the item to be added

    • insertElementAt

      public void insertElementAt(E 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<E>
      Parameters:
      anObject - the item 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<E>
      Parameters:
      index - location of the item 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<E>
      Parameters:
      anObject - the Object to be removed

    • removeAllElements

      public void removeAllElements()
      Empties the list.

    • addAll

      public void addAll(Collection<? extends E> c)
      Adds all of the elements present in the collection.
      Parameters:
      c - the collection which contains the elements to add
      Throws:
      NullPointerException - if c is null

    • addAll

      public void addAll(int index, Collection<? extends E> c)
      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 collection
      c - the collection which contains the elements to add
      Throws:
      ArrayIndexOutOfBoundsException - if index does not fall within the range of number of elements currently held
      NullPointerException - if c is null