org.jgroups.demos
Class QuoteClient

java.lang.Object
  extended byjava.awt.Component
      extended byjava.awt.Container
          extended byjava.awt.Window
              extended byjava.awt.Frame
                  extended byorg.jgroups.demos.QuoteClient
All Implemented Interfaces:
javax.accessibility.Accessible, java.awt.event.ActionListener, java.util.EventListener, java.awt.image.ImageObserver, MembershipListener, java.awt.MenuContainer, java.io.Serializable, java.awt.event.WindowListener

public class QuoteClient
extends java.awt.Frame
implements java.awt.event.WindowListener, java.awt.event.ActionListener, MembershipListener

Used in conjunction with QuoteServer: a client is member of a group of quote servers which replicate stock quotes among themselves. The client broadcasts its request (set, get quotes) and (in the case of get waits for the first reply received (usually the one from the quote server closest to it). The client can get and set quotes as long as a minimum of 1 server (in the group) is running.

Author:
Bela Ban
See Also:
Serialized Form

Nested Class Summary
 
Nested classes inherited from class java.awt.Frame
java.awt.Frame.AccessibleAWTFrame
 
Nested classes inherited from class java.awt.Window
java.awt.Window.AccessibleAWTWindow
 
Nested classes inherited from class java.awt.Container
java.awt.Container.AccessibleAWTContainer
 
Nested classes inherited from class java.awt.Component
java.awt.Component.AccessibleAWTComponent, java.awt.Component.BltBufferStrategy, java.awt.Component.FlipBufferStrategy
 
Field Summary
 
Fields inherited from class java.awt.Frame
CROSSHAIR_CURSOR, DEFAULT_CURSOR, E_RESIZE_CURSOR, HAND_CURSOR, ICONIFIED, MAXIMIZED_BOTH, MAXIMIZED_HORIZ, MAXIMIZED_VERT, MOVE_CURSOR, N_RESIZE_CURSOR, NE_RESIZE_CURSOR, NORMAL, NW_RESIZE_CURSOR, S_RESIZE_CURSOR, SE_RESIZE_CURSOR, SW_RESIZE_CURSOR, TEXT_CURSOR, W_RESIZE_CURSOR, WAIT_CURSOR
 
Fields inherited from class java.awt.Component
BOTTOM_ALIGNMENT, CENTER_ALIGNMENT, LEFT_ALIGNMENT, RIGHT_ALIGNMENT, TOP_ALIGNMENT
 
Fields inherited from interface java.awt.image.ImageObserver
ABORT, ALLBITS, ERROR, FRAMEBITS, HEIGHT, PROPERTIES, SOMEBITS, WIDTH
 
Constructor Summary
QuoteClient()
           
 
Method Summary
 void actionPerformed(java.awt.event.ActionEvent e)
           
 void block()
          Called whenever the member needs to stop sending messages.
static void main(java.lang.String[] args)
           
 void start()
           
 void suspect(Address suspected_mbr)
          Called whenever a member is suspected of having crashed, but has not yet been excluded.
 void viewAccepted(View new_view)
          Called when a change in membership has occurred.
 void windowActivated(java.awt.event.WindowEvent e)
           
 void windowClosed(java.awt.event.WindowEvent e)
           
 void windowClosing(java.awt.event.WindowEvent e)
           
 void windowDeactivated(java.awt.event.WindowEvent e)
           
 void windowDeiconified(java.awt.event.WindowEvent e)
           
 void windowIconified(java.awt.event.WindowEvent e)
           
 void windowOpened(java.awt.event.WindowEvent e)
           
 
Methods inherited from class java.awt.Frame
addNotify, finalize, getAccessibleContext, getCursorType, getExtendedState, getFrames, getIconImage, getMaximizedBounds, getMenuBar, getState, getTitle, isResizable, isUndecorated, paramString, remove, removeNotify, setCursor, setExtendedState, setIconImage, setMaximizedBounds, setMenuBar, setResizable, setState, setTitle, setUndecorated
 
Methods inherited from class java.awt.Window
addPropertyChangeListener, addPropertyChangeListener, addWindowFocusListener, addWindowListener, addWindowStateListener, applyResourceBundle, applyResourceBundle, createBufferStrategy, createBufferStrategy, dispose, getBufferStrategy, getFocusableWindowState, getFocusCycleRootAncestor, getFocusOwner, getFocusTraversalKeys, getGraphicsConfiguration, getInputContext, getListeners, getLocale, getMostRecentFocusOwner, getOwnedWindows, getOwner, getToolkit, getWarningString, getWindowFocusListeners, getWindowListeners, getWindowStateListeners, hide, isActive, isFocusableWindow, isFocusCycleRoot, isFocused, isShowing, pack, postEvent, processEvent, processWindowEvent, processWindowFocusEvent, processWindowStateEvent, removeWindowFocusListener, removeWindowListener, removeWindowStateListener, setCursor, setFocusableWindowState, setFocusCycleRoot, setLocationRelativeTo, show, toBack, toFront
 
Methods inherited from class java.awt.Container
add, add, add, add, add, addContainerListener, addImpl, applyComponentOrientation, areFocusTraversalKeysSet, countComponents, deliverEvent, doLayout, findComponentAt, findComponentAt, getAlignmentX, getAlignmentY, getComponent, getComponentAt, getComponentAt, getComponentCount, getComponents, getContainerListeners, getFocusTraversalPolicy, getInsets, getLayout, getMaximumSize, getMinimumSize, getPreferredSize, insets, invalidate, isAncestorOf, isFocusCycleRoot, isFocusTraversalPolicySet, layout, list, list, locate, minimumSize, paint, paintComponents, preferredSize, print, printComponents, processContainerEvent, remove, remove, removeAll, removeContainerListener, setFocusTraversalKeys, setFocusTraversalPolicy, setFont, setLayout, transferFocusBackward, transferFocusDownCycle, update, validate, validateTree
 
Methods inherited from class java.awt.Component
action, add, addComponentListener, addFocusListener, addHierarchyBoundsListener, addHierarchyListener, addInputMethodListener, addKeyListener, addMouseListener, addMouseMotionListener, addMouseWheelListener, bounds, checkImage, checkImage, coalesceEvents, contains, contains, createImage, createImage, createVolatileImage, createVolatileImage, disable, disableEvents, dispatchEvent, enable, enable, enableEvents, enableInputMethods, firePropertyChange, firePropertyChange, firePropertyChange, getBackground, getBounds, getBounds, getColorModel, getComponentListeners, getComponentOrientation, getCursor, getDropTarget, getFocusListeners, getFocusTraversalKeysEnabled, getFont, getFontMetrics, getForeground, getGraphics, getHeight, getHierarchyBoundsListeners, getHierarchyListeners, getIgnoreRepaint, getInputMethodListeners, getInputMethodRequests, getKeyListeners, getLocation, getLocation, getLocationOnScreen, getMouseListeners, getMouseMotionListeners, getMouseWheelListeners, getName, getParent, getPeer, getPropertyChangeListeners, getPropertyChangeListeners, getSize, getSize, getTreeLock, getWidth, getX, getY, gotFocus, handleEvent, hasFocus, imageUpdate, inside, isBackgroundSet, isCursorSet, isDisplayable, isDoubleBuffered, isEnabled, isFocusable, isFocusOwner, isFocusTraversable, isFontSet, isForegroundSet, isLightweight, isOpaque, isValid, isVisible, keyDown, keyUp, list, list, list, location, lostFocus, mouseDown, mouseDrag, mouseEnter, mouseExit, mouseMove, mouseUp, move, nextFocus, paintAll, prepareImage, prepareImage, printAll, processComponentEvent, processFocusEvent, processHierarchyBoundsEvent, processHierarchyEvent, processInputMethodEvent, processKeyEvent, processMouseEvent, processMouseMotionEvent, processMouseWheelEvent, removeComponentListener, removeFocusListener, removeHierarchyBoundsListener, removeHierarchyListener, removeInputMethodListener, removeKeyListener, removeMouseListener, removeMouseMotionListener, removeMouseWheelListener, removePropertyChangeListener, removePropertyChangeListener, repaint, repaint, repaint, repaint, requestFocus, requestFocus, requestFocusInWindow, requestFocusInWindow, reshape, resize, resize, setBackground, setBounds, setBounds, setComponentOrientation, setDropTarget, setEnabled, setFocusable, setFocusTraversalKeysEnabled, setForeground, setIgnoreRepaint, setLocale, setLocation, setLocation, setName, setSize, setSize, setVisible, show, size, toString, transferFocus, transferFocusUpCycle
 
Methods inherited from class java.lang.Object
clone, equals, getClass, hashCode, notify, notifyAll, wait, wait, wait
 
Methods inherited from interface java.awt.MenuContainer
getFont, postEvent
 

Constructor Detail

QuoteClient

public QuoteClient()
Method Detail

start

public void start()

windowActivated

public void windowActivated(java.awt.event.WindowEvent e)
Specified by:
windowActivated in interface java.awt.event.WindowListener

windowClosed

public void windowClosed(java.awt.event.WindowEvent e)
Specified by:
windowClosed in interface java.awt.event.WindowListener

windowClosing

public void windowClosing(java.awt.event.WindowEvent e)
Specified by:
windowClosing in interface java.awt.event.WindowListener

windowDeactivated

public void windowDeactivated(java.awt.event.WindowEvent e)
Specified by:
windowDeactivated in interface java.awt.event.WindowListener

windowDeiconified

public void windowDeiconified(java.awt.event.WindowEvent e)
Specified by:
windowDeiconified in interface java.awt.event.WindowListener

windowIconified

public void windowIconified(java.awt.event.WindowEvent e)
Specified by:
windowIconified in interface java.awt.event.WindowListener

windowOpened

public void windowOpened(java.awt.event.WindowEvent e)
Specified by:
windowOpened in interface java.awt.event.WindowListener

actionPerformed

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

viewAccepted

public void viewAccepted(View new_view)
Description copied from interface: MembershipListener
Called when a change in membership has occurred. No long running actions should be done in this callback. If some long running action needs to be performed, it should be done in a separate thread.

Specified by:
viewAccepted in interface MembershipListener

suspect

public void suspect(Address suspected_mbr)
Description copied from interface: MembershipListener
Called whenever a member is suspected of having crashed, but has not yet been excluded.

Specified by:
suspect in interface MembershipListener

block

public void block()
Description copied from interface: MembershipListener
Called whenever the member needs to stop sending messages. When the next view is received (viewAccepted()), the member can resume sending messages. If a member does not comply, the message(s) sent between a block() and a matching viewAccepted() callback will probably be delivered in the next view. The block() callback is only needed by the Virtual Synchrony suite of protocols (FLUSH protocol)3.2, otherwise it will never be invoked.

Specified by:
block in interface MembershipListener

main

public static void main(java.lang.String[] args)


Copyright ? 1998-2005 Bela Ban. All Rights Reserved.