com.fr.third.jgroups.demos.wb

类 Whiteboard

java.lang.Object

java.awt.Component

java.awt.Container

java.awt.Panel

java.applet.Applet

com.fr.third.jgroups.demos.wb.Whiteboard

所有已实现的接口:

MembershipListener, MessageListener, java.awt.event.ActionListener, java.awt.event.ComponentListener, java.awt.event.FocusListener, java.awt.image.ImageObserver, java.awt.MenuContainer, java.io.Serializable, java.util.EventListener, javax.accessibility.Accessible

public class Whiteboard
extends java.applet.Applet
implements MessageListener, MembershipListener, java.awt.event.ActionListener, java.awt.event.ComponentListener, java.awt.event.FocusListener

Shared whiteboard: members are represented by rectangles that contain their names and the OS/arch of the machine they are working on. The boxes can be moved by anyone and by clicking on them, messages can be sent to specific or all members. Whiteboard is both an application and an applet.

作者:

Bela Ban

另请参阅:

序列化表格

嵌套类概要

从类继承的嵌套类/接口 java.applet.Applet

java.applet.Applet.AccessibleApplet

从类继承的嵌套类/接口 java.awt.Panel

java.awt.Panel.AccessibleAWTPanel

从类继承的嵌套类/接口 java.awt.Container

java.awt.Container.AccessibleAWTContainer

从类继承的嵌套类/接口 java.awt.Component

java.awt.Component.AccessibleAWTComponent, java.awt.Component.BaselineResizeBehavior, java.awt.Component.BltBufferStrategy, java.awt.Component.FlipBufferStrategy

字段概要

字段

限定符和类型	字段和说明
RpcDispatcher	disp
static java.lang.String	groupname

从类继承的字段 java.awt.Component

BOTTOM_ALIGNMENT, CENTER_ALIGNMENT, LEFT_ALIGNMENT, RIGHT_ALIGNMENT, TOP_ALIGNMENT

从接口继承的字段 java.awt.image.ImageObserver

ABORT, ALLBITS, ERROR, FRAMEBITS, HEIGHT, PROPERTIES, SOMEBITS, WIDTH

构造器概要

构造器

构造器和说明
Whiteboard()
Whiteboard(java.lang.String properties)

方法概要

方法

限定符和类型	方法和说明
void	actionPerformed(java.awt.event.ActionEvent e)
void	addNode(java.lang.String lbl, Address addr, int xloc, int yloc)
void	block() Called (usually by the FLUSH protocol), as an indication that the member should stop sending messages.
void	componentHidden(java.awt.event.ComponentEvent e)
void	componentMoved(java.awt.event.ComponentEvent e)
void	componentResized(java.awt.event.ComponentEvent e)
void	componentShown(java.awt.event.ComponentEvent e)
void	destroy()
void	displayMessage(java.lang.String sender, java.lang.String msg)
void	focusGained(java.awt.event.FocusEvent e)
void	focusLost(java.awt.event.FocusEvent e)
void	getState(java.io.OutputStream ostream) Allows an application to write a state through a provided OutputStream.
void	init()
static void	main(java.lang.String[] args)
void	moveNode(Node n)
void	receive(Message m) Called when a message is received.
void	removeNode(java.lang.Object addr)
void	repaint()
void	setState(java.io.InputStream istream) Allows an application to read a state through a provided InputStream.
void	suspect(Address obj) Called whenever a member is suspected of having crashed, but has not yet been excluded.
void	unblock() Called after the FLUSH protocol has unblocked previously blocked senders, and messages can be sent again.
void	viewAccepted(View v) Called when a change in membership has occurred.

从类继承的方法 java.applet.Applet

getAccessibleContext, getAppletContext, getAppletInfo, getAudioClip, getAudioClip, getCodeBase, getDocumentBase, getImage, getImage, getLocale, getParameter, getParameterInfo, isActive, isValidateRoot, newAudioClip, play, play, resize, resize, setStub, showStatus, start, stop

从类继承的方法 java.awt.Panel

addNotify

从类继承的方法 java.awt.Container

add, add, add, add, add, addContainerListener, addImpl, addPropertyChangeListener, addPropertyChangeListener, applyComponentOrientation, areFocusTraversalKeysSet, countComponents, deliverEvent, doLayout, findComponentAt, findComponentAt, getAlignmentX, getAlignmentY, getComponent, getComponentAt, getComponentAt, getComponentCount, getComponents, getComponentZOrder, getContainerListeners, getFocusTraversalKeys, getFocusTraversalPolicy, getInsets, getLayout, getListeners, getMaximumSize, getMinimumSize, getMousePosition, getPreferredSize, insets, invalidate, isAncestorOf, isFocusCycleRoot, isFocusCycleRoot, isFocusTraversalPolicyProvider, isFocusTraversalPolicySet, layout, list, list, locate, minimumSize, paint, paintComponents, paramString, preferredSize, print, printComponents, processContainerEvent, processEvent, remove, remove, removeAll, removeContainerListener, removeNotify, setComponentZOrder, setFocusCycleRoot, setFocusTraversalKeys, setFocusTraversalPolicy, setFocusTraversalPolicyProvider, setFont, setLayout, transferFocusDownCycle, update, validate, validateTree

从类继承的方法 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, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, getBackground, getBaseline, getBaselineResizeBehavior, getBounds, getBounds, getColorModel, getComponentListeners, getComponentOrientation, getCursor, getDropTarget, getFocusCycleRootAncestor, getFocusListeners, getFocusTraversalKeysEnabled, getFont, getFontMetrics, getForeground, getGraphics, getGraphicsConfiguration, getHeight, getHierarchyBoundsListeners, getHierarchyListeners, getIgnoreRepaint, getInputContext, getInputMethodListeners, getInputMethodRequests, getKeyListeners, getLocation, getLocation, getLocationOnScreen, getMouseListeners, getMouseMotionListeners, getMousePosition, getMouseWheelListeners, getName, getParent, getPeer, getPropertyChangeListeners, getPropertyChangeListeners, getSize, getSize, getToolkit, getTreeLock, getWidth, getX, getY, gotFocus, handleEvent, hasFocus, hide, imageUpdate, inside, isBackgroundSet, isCursorSet, isDisplayable, isDoubleBuffered, isEnabled, isFocusable, isFocusOwner, isFocusTraversable, isFontSet, isForegroundSet, isLightweight, isMaximumSizeSet, isMinimumSizeSet, isOpaque, isPreferredSizeSet, isShowing, isValid, isVisible, keyDown, keyUp, list, list, list, location, lostFocus, mouseDown, mouseDrag, mouseEnter, mouseExit, mouseMove, mouseUp, move, nextFocus, paintAll, postEvent, prepareImage, prepareImage, printAll, processComponentEvent, processFocusEvent, processHierarchyBoundsEvent, processHierarchyEvent, processInputMethodEvent, processKeyEvent, processMouseEvent, processMouseMotionEvent, processMouseWheelEvent, remove, removeComponentListener, removeFocusListener, removeHierarchyBoundsListener, removeHierarchyListener, removeInputMethodListener, removeKeyListener, removeMouseListener, removeMouseMotionListener, removeMouseWheelListener, removePropertyChangeListener, removePropertyChangeListener, repaint, repaint, repaint, requestFocus, requestFocus, requestFocusInWindow, requestFocusInWindow, reshape, revalidate, setBackground, setBounds, setBounds, setComponentOrientation, setCursor, setDropTarget, setEnabled, setFocusable, setFocusTraversalKeysEnabled, setForeground, setIgnoreRepaint, setLocale, setLocation, setLocation, setMaximumSize, setMinimumSize, setName, setPreferredSize, setSize, setSize, setVisible, show, show, size, toString, transferFocus, transferFocusBackward, transferFocusUpCycle

从类继承的方法 java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

字段详细资料

disp

public RpcDispatcher disp

groupname

public static final java.lang.String groupname

另请参阅:

常量字段值

构造器详细资料

Whiteboard

public Whiteboard()

Whiteboard

public Whiteboard(java.lang.String properties)

方法详细资料

receive

public void receive(Message m)

从接口复制的说明: MessageListener

Called when a message is received.

指定者:

receive 在接口中 MessageListener

getState

public void getState(java.io.OutputStream ostream)
              throws java.lang.Exception

从接口复制的说明: MessageListener

Allows an application to write a state through a provided OutputStream. After the state has been written the OutputStream doesn't need to be closed as stream closing is automatically done when a calling thread returns from this callback.

指定者:

getState 在接口中 MessageListener

参数:

ostream - the OutputStream

抛出:

java.lang.Exception - if the streaming fails, any exceptions should be thrown so that the state requester can re-throw them and let the caller know what happened

另请参阅:

OutputStream.close()

setState

public void setState(java.io.InputStream istream)
              throws java.lang.Exception

从接口复制的说明: MessageListener

Allows an application to read a state through a provided InputStream. After the state has been read the InputStream doesn't need to be closed as stream closing is automatically done when a calling thread returns from this callback.

指定者:

setState 在接口中 MessageListener

参数:

istream - the InputStream

抛出:

java.lang.Exception - if the streaming fails, any exceptions should be thrown so that the state requester can catch them and thus know what happened

另请参阅:

InputStream.close()

init

public void init()

覆盖:

init 在类中 java.applet.Applet

destroy

public void destroy()

覆盖:

destroy 在类中 java.applet.Applet

repaint

public void repaint()

覆盖:

repaint 在类中 java.awt.Component

actionPerformed

public void actionPerformed(java.awt.event.ActionEvent e)

指定者:

actionPerformed 在接口中 java.awt.event.ActionListener

viewAccepted

public void viewAccepted(View v)

从接口复制的说明: MembershipListener

Called when a change in membership has occurred. No long running actions, sending of messages or anything that could block should be done in this callback. If some long running action needs to be performed, it should be done in a separate thread.

Note that on reception of the first view (a new member just joined), the channel will not yet be in the connected state. This only happens when Channel.connect(String) returns.

指定者:

viewAccepted 在接口中 MembershipListener

suspect

public void suspect(Address obj)

从接口复制的说明: MembershipListener

Called whenever a member is suspected of having crashed, but has not yet been excluded.

指定者:

suspect 在接口中 MembershipListener

block

public void block()

从接口复制的说明: MembershipListener

Called (usually by the FLUSH protocol), as an indication that the member should stop sending messages. Any messages sent after returning from this callback might get blocked by the FLUSH protocol. When the FLUSH protocol is done, and messages can be sent again, the FLUSH protocol will simply unblock all pending messages. If a callback for unblocking is desired, implement MembershipListener.unblock(). Note that block() is the equivalent of reception of a BlockEvent in the pull mode.

指定者:

block 在接口中 MembershipListener

unblock

public void unblock()

从接口复制的说明: MembershipListener

Called after the FLUSH protocol has unblocked previously blocked senders, and messages can be sent again. This callback only needs to be implemented if we require a notification of that.

Note that during new view installation we provide guarantee that unblock invocation strictly follows view installation at some node A belonging to that view . However, some other message M may squeeze in between view and unblock callbacks.

For more details see https://jira.jboss.org/jira/browse/JGRP-986

指定者:

unblock 在接口中 MembershipListener

moveNode

public void moveNode(Node n)

addNode

public void addNode(java.lang.String lbl,
           Address addr,
           int xloc,
           int yloc)

removeNode

public void removeNode(java.lang.Object addr)

displayMessage

public void displayMessage(java.lang.String sender,
                  java.lang.String msg)

componentResized

public void componentResized(java.awt.event.ComponentEvent e)

指定者:

componentResized 在接口中 java.awt.event.ComponentListener

componentMoved

public void componentMoved(java.awt.event.ComponentEvent e)

指定者:

componentMoved 在接口中 java.awt.event.ComponentListener

componentShown

public void componentShown(java.awt.event.ComponentEvent e)

指定者:

componentShown 在接口中 java.awt.event.ComponentListener

componentHidden

public void componentHidden(java.awt.event.ComponentEvent e)

指定者:

componentHidden 在接口中 java.awt.event.ComponentListener

focusGained

public void focusGained(java.awt.event.FocusEvent e)

指定者:

focusGained 在接口中 java.awt.event.FocusListener

focusLost

public void focusLost(java.awt.event.FocusEvent e)

指定者:

focusLost 在接口中 java.awt.event.FocusListener

main

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