wonderly.jeaprs.swing
Class CircularListModel

java.lang.Object
  |
  +--javax.swing.AbstractListModel
        |
        +--wonderly.jeaprs.swing.VectorListModel
              |
              +--wonderly.jeaprs.swing.CircularListModel

All Implemented Interfaces:

javax.swing.ListModel, java.io.Serializable

public class CircularListModel

extends VectorListModel

This class provides a circular list model for the JList class which allows for fixed sized lists of fast changing data to be managed effectively. When a list should just display the last-N elements of data added, this model is optimized to do that so that you don't have to shuffel every element in a large vector or array down by one index to delete the first element and then add the new element at the end.

Version:

1.0

Author:

Gregg Wonderly - The information contained in this document is Copyright 2001-2003, Gregg Wonderly, all rights reserved.

See Also:

Serialized Form

Field Summary

Fields inherited from class wonderly.jeaprs.swing.VectorListModel

delegate

Fields inherited from class javax.swing.AbstractListModel

listenerList

Constructor Summary

CircularListModel(int max)

Method Summary

void	addElement(java.lang.Object obj)
java.lang.Object	elementAt(int i)
java.lang.Object	getElementAt(int idx)
int	getSize()
void	removeAllElements()
void	setElementAt(java.lang.Object obj, int i)
void	setMaxSize(int sz)
int	size()
java.lang.String	toString()

Methods inherited from class wonderly.jeaprs.swing.VectorListModel

add, capacity, clear, contains, copyInto, elements, ensureCapacity, firstElement, get, getContents, indexOf, indexOf, insertElementAt, isEmpty, lastElement, lastIndexOf, lastIndexOf, remove, removeElement, removeElementAt, removeRange, set, setContents, setSize, toArray, trimToSize

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, wait, wait, wait

Constructor Detail

CircularListModel

public CircularListModel(int max)

Method Detail

toString

public java.lang.String toString()

Overrides:

toString in class VectorListModel

removeAllElements

public void removeAllElements()

Overrides:

removeAllElements in class VectorListModel

size

public int size()

Overrides:

size in class VectorListModel

elementAt

public java.lang.Object elementAt(int i)

Overrides:

elementAt in class VectorListModel

setElementAt

public void setElementAt(java.lang.Object obj,
                         int i)

Overrides:

setElementAt in class VectorListModel

setMaxSize

public void setMaxSize(int sz)

getSize

public int getSize()

Specified by:

getSize in interface javax.swing.ListModel

Overrides:

getSize in class VectorListModel

getElementAt

public java.lang.Object getElementAt(int idx)

Specified by:

getElementAt in interface javax.swing.ListModel

Overrides:

getElementAt in class VectorListModel

addElement

public void addElement(java.lang.Object obj)

Overrides:

addElement in class VectorListModel