Package org.jdesktop.swingx.combobox

Class ListComboBoxModel<E>

  • Type Parameters:
    E - the type of elements maintained by the list backing this model
    All Implemented Interfaces:
    java.awt.event.ActionListener, java.io.Serializable, java.util.EventListener, javax.swing.ComboBoxModel, javax.swing.ListModel
    Direct Known Subclasses:
    EnumComboBoxModel, MapComboBoxModel
    public class ListComboBoxModel<E>
extends javax.swing.AbstractListModel
implements javax.swing.ComboBoxModel, java.awt.event.ActionListener
    A ComboBoxModel for Lists.
    Author:
    jm158417, Karl George Schaefer
    See Also:
    Serialized Form

    • Field Summary

      Fields 
      Modifier and Type Field Description
      protected java.util.List<E> data
      A reference to the list backing this model.
      protected E selected
      The currently selected item.
      static java.lang.String UPDATE
      A key used to notify the model that the backing List has changed.

      • Fields inherited from class javax.swing.AbstractListModel

        listenerList

    • Constructor Summary

      Constructors 
      Constructor Description
      ListComboBoxModel​(java.util.List<E> list)
      Creates a ListComboBoxModel backed by the supplied list.

    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      void actionPerformed​(java.awt.event.ActionEvent evt)
      E getElementAt​(int index)
      E getSelectedItem()
      int getSize()
      void setSelectedItem​(java.lang.Object item)
      Set 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

    • Field Detail

      • UPDATE

        public static final java.lang.String UPDATE
        A key used to notify the model that the backing List has changed.
        See Also:
        Constant Field Values

      • data

        protected final java.util.List<E> data
        A reference to the list backing this model.

        This model does not make a copy of the list, so any changes in the list without synchronizing the model may have drastic effects.

      • selected

        protected E selected
        The currently selected item.

    • Constructor Detail

      • ListComboBoxModel

        public ListComboBoxModel​(java.util.List<E> list)
        Creates a ListComboBoxModel backed by the supplied list.
        Parameters:
        list - the list backing this model
        Throws:
        java.lang.NullPointerException - if list is null

    • Method Detail

      • setSelectedItem

        public void setSelectedItem​(java.lang.Object item)
        Set the selected item. The implementation of this method should notify all registered ListDataListeners that the contents have changed.
        Specified by:
        setSelectedItem in interface javax.swing.ComboBoxModel<E>
        Parameters:
        item - the list object to select or null to clear the selection
        Throws:
        java.lang.ClassCastException - if item is not of type E

      • getSelectedItem

        public E getSelectedItem()
        Specified by:
        getSelectedItem in interface javax.swing.ComboBoxModel<E>

      • getElementAt

        public E getElementAt​(int index)
        Specified by:
        getElementAt in interface javax.swing.ListModel<E>

      • getSize

        public int getSize()
        Specified by:
        getSize in interface javax.swing.ListModel<E>

      • actionPerformed

        public void actionPerformed​(java.awt.event.ActionEvent evt)
        Specified by:
        actionPerformed in interface java.awt.event.ActionListener