com.ibm.db
Class StatementBeforeEventMulticaster

java.lang.Object
  |
  +--java.awt.AWTEventMulticaster
        |
        +--com.ibm.db.StatementBeforeEventMulticaster

class StatementBeforeEventMulticaster
extends java.awt.AWTEventMulticaster
implements StatementBeforeListener

This is the event multicaster class to support the StatementBeforeListener interface.


Field Summary
private static java.lang.String copyright
           
 
Fields inherited from class java.awt.AWTEventMulticaster
a, b
 
Constructor Summary
protected StatementBeforeEventMulticaster(StatementBeforeListener a, StatementBeforeListener b)
          Constructor to support multicast events.
 
Method Summary
 void aboutToClose(DataEvent event)
          Invoked before StatementResult.close has been executed.
 void aboutToExecute(DataEvent event)
          Invoked before Statement.exeucte is executed.
static StatementBeforeListener add(StatementBeforeListener a, StatementBeforeListener b)
          Add new listener to support multicast events.
protected static java.util.EventListener addInternal(java.util.EventListener a, java.util.EventListener b)
          Returns the resulting multicast listener from adding listener-a and listener-b together.
protected  java.util.EventListener remove(java.util.EventListener oldl)
          Removes a listener from this multicaster and returns the resulting multicast listener.
static StatementBeforeListener remove(StatementBeforeListener a, StatementBeforeListener b)
          Remove listener to support multicast events.
protected static java.util.EventListener removeInternal(java.util.EventListener l, java.util.EventListener oldl)
          Returns the resulting multicast listener after removing the old listener from listener-l.
 
Methods inherited from class java.awt.AWTEventMulticaster
actionPerformed, add, add, add, add, add, add, add, add, add, add, add, add, adjustmentValueChanged, caretPositionChanged, componentAdded, componentHidden, componentMoved, componentRemoved, componentResized, componentShown, focusGained, focusLost, inputMethodTextChanged, itemStateChanged, keyPressed, keyReleased, keyTyped, mouseClicked, mouseDragged, mouseEntered, mouseExited, mouseMoved, mousePressed, mouseReleased, remove, remove, remove, remove, remove, remove, remove, remove, remove, remove, remove, remove, save, saveInternal, textValueChanged, windowActivated, windowClosed, windowClosing, windowDeactivated, windowDeiconified, windowIconified, windowOpened
 
Methods inherited from class java.lang.Object
, clone, equals, finalize, getClass, hashCode, notify, notifyAll, registerNatives, toString, wait, wait, wait
 

Field Detail

copyright

private static final java.lang.String copyright
Constructor Detail

StatementBeforeEventMulticaster

protected StatementBeforeEventMulticaster(StatementBeforeListener a,
                                          StatementBeforeListener b)
Constructor to support multicast events.
Parameters:
a - StatementBeforeListener
b - StatementBeforeListener
Method Detail

aboutToClose

public void aboutToClose(DataEvent event)
Invoked before StatementResult.close has been executed.
Specified by:
aboutToClose in interface StatementBeforeListener
Parameters:
event - DataEvent

aboutToExecute

public void aboutToExecute(DataEvent event)
Invoked before Statement.exeucte is executed.
Specified by:
aboutToExecute in interface StatementBeforeListener
Parameters:
event - DataEvent

add

public static StatementBeforeListener add(StatementBeforeListener a,
                                          StatementBeforeListener b)
Add new listener to support multicast events.
Parameters:
a - StatementBeforeListener
b - StatementBeforeListener
Returns:
StatementBeforeListener

addInternal

protected static java.util.EventListener addInternal(java.util.EventListener a,
                                                     java.util.EventListener b)
Returns the resulting multicast listener from adding listener-a and listener-b together. If listener-a is null, it returns listener-b; If listener-b is null, it returns listener-a If neither are null, then it creates and returns a new AWTEventMulticaster instance which chains a with b.
Parameters:
a - event listener-a
b - event listener-b

remove

public static StatementBeforeListener remove(StatementBeforeListener a,
                                             StatementBeforeListener b)
Remove listener to support multicast events.
Parameters:
a - StatementBeforeListener
b - StatementBeforeListener
Returns:
StatementBeforeListener

remove

protected java.util.EventListener remove(java.util.EventListener oldl)
Removes a listener from this multicaster and returns the resulting multicast listener.
Overrides:
remove in class java.awt.AWTEventMulticaster
Parameters:
oldl - the listener to be removed

removeInternal

protected static java.util.EventListener removeInternal(java.util.EventListener l,
                                                        java.util.EventListener oldl)
Returns the resulting multicast listener after removing the old listener from listener-l. If listener-l equals the old listener OR listener-l is null, returns null. Else if listener-l is an instance of TableModelEventMulticaster, then it removes the old listener from it. Else, returns listener l.
Parameters:
l - the listener being removed from
oldl - the listener being removed