Kifani - only two instances of bean - dispatchCustomEvent fails

11.1.2.1 forms

I have a bean with the implementation defined in CardReader.CardReaderWrapper class.  When the form starts up you can see the init() method is called.  This action creates an instance - see red Objct1.  When I push the button and do the fbean.invoke method, it creates another instance, see red objct2, and the dispatchcustomevent() method fails.  Looks like I should have only one instance of the kifani not two?  It is a failure in the last line of code before the call to forms - dispatchCustomEvent (this);  IM so close...

The console log

init1 *.
1: m_handler = oracle.forms.handler.JavaContainer@171e233
Init2 *.
CardReaderWrapper Objct1 = CardReader.CardReaderWrapper [CardReaderWrapper1, 0, 0, 0 x 0, invalid, layout = java.awt.BorderLayout]

... <-snipped

CardReader.CardReaderWrapper parameter to ALL debugMode

... <-snipped

CardReader.CardReaderWrapper setting mGetATR to 0
Invoking getATR CardReader.CardReaderWrapper
9
CardReaderWrapper Objct2 = CardReader.CardReaderWrapper [CardReaderWrapper2, 2, 2, 373 x 79, layout = java.awt.BorderLayout]
dispatchMessage1 *.
2: m_handler = oracle.forms.handler.JavaContainer@171e233
dispatchMessage2 *.
dispatchMessage3 *.
java.lang.NullPointerException
at oracle.forms.ui.BeanManager.dispatchCustomEvent (unknown Source)
at oracle.forms.ui.VBean.dispatchCustomEvent (unknown Source)
at CardReader.CardReaderWrapper.dispatchMessage (CardReaderWrapper.java:73)
at CardReader.CardReaderWrapper.getATR (CardReaderWrapper.java:138)
at sun.reflect.NativeMethodAccessorImpl.invoke0 (Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke (unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke (unknown Source)
at java.lang.reflect.Method.invoke (unknown Source)
at oracle.forms.beans.MethodHelperPM.invokeMethod (unknown Source)
at oracle.forms.beans.MethodPM.setProperty (unknown Source)
at oracle.forms.ui.VBean.setBeanProperty (unknown Source)
at oracle.forms.ui.VBean.setProperty (unknown Source)
at oracle.forms.handler.ComponentItem.setCustomProperty (unknown Source)
at oracle.forms.handler.ComponentItem.onUpdate (unknown Source)
at oracle.forms.handler.JavaContainer.onUpdate (unknown Source)
at oracle.forms.handler.UICommon.onUpdate (unknown Source)
at oracle.forms.engine.Runform.onUpdateHandler (unknown Source)
at oracle.forms.engine.Runform.processMessage (unknown Source)
at oracle.forms.engine.Runform.processSet (unknown Source)
at oracle.forms.engine.Runform.onMessageReal (unknown Source)
at oracle.forms.engine.Runform.onMessage (unknown Source)
at oracle.forms.engine.Runform.processEventEnd (unknown Source)
at oracle.ewt.lwAWT.LWComponent.redispatchEvent (unknown Source)
at oracle.ewt.lwAWT.LWComponent.processEvent (unknown Source)
at java.awt.Component.dispatchEventImpl (unknown Source)
at java.awt.Container.dispatchEventImpl (unknown Source)
at java.awt.Component.dispatchEvent (unknown Source)
at java.awt.LightweightDispatcher.retargetMouseEvent (unknown Source)
at java.awt.LightweightDispatcher.processMouseEvent (unknown Source)
at java.awt.LightweightDispatcher.dispatchEvent (unknown Source)
at java.awt.Container.dispatchEventImpl (unknown Source)
at java.awt.Window.dispatchEventImpl (unknown Source)
at java.awt.Component.dispatchEvent (unknown Source)
at java.awt.EventQueue.dispatchEventImpl (unknown Source)
at java.awt.EventQueue.access$ 500 (unknown Source)
in java.awt.EventQueue$ 3.run (unknown Source)
in java.awt.EventQueue$ 3.run (unknown Source)
at java.security.AccessController.doPrivileged (Native Method)
in java.security.ProtectionDomain$ JavaSecurityAccessImpl.doIntersectionPrivilege (unknown Source)
in java.security.ProtectionDomain$ JavaSecurityAccessImpl.doIntersectionPrivilege (unknown Source)
in java.awt.EventQueue$ 4.run (unknown Source)
in java.awt.EventQueue$ 4.run (unknown Source)
at java.security.AccessController.doPrivileged (Native Method)
in java.security.ProtectionDomain$ JavaSecurityAccessImpl.doIntersectionPrivilege (unknown Source)
at java.awt.EventQueue.dispatchEvent (unknown Source)
at java.awt.EventDispatchThread.pumpOneEventForFilters (unknown Source)
at java.awt.EventDispatchThread.pumpEventsForFilter (unknown Source)
at java.awt.EventDispatchThread.pumpEventsForHierarchy (unknown Source)
at java.awt.EventDispatchThread.pumpEvents (unknown Source)
at java.awt.EventDispatchThread.pumpEvents (unknown Source)
at java.awt.EventDispatchThread.run (unknown Source)

a time new form instance

FBean.Register_Bean('TEST.) CARD_READER_BEAN_AREA', 1, 'CardReader.CardReaderWrapper');

FBean.set_logging_mode('TEST.) CARD_READER_BEAN_AREA', 1, FBEAN. LOG_ALL);

When button pressed

fbean. Invoke('TEST.) CARD_READER_BEAN_AREA', 1, 'getATR');

When-custom-point-event

DECLARE
eventName varchar2 (30): =: system.custom_item_event;
eventValues ParamList;
number of eventValueType;
tempString varchar2 (100);
BEGIN
message ('Hello1'); take a break;
IF (eventName = "CARDINFO_EVENT") THEN
eventValues: = get_parameter_list(:system.custom_item_event_parameters);
get_parameter_attr (eventValues, 'CARDINFO_DATA', eventValueType tempString);
END IF;
message ("Hello2: ' |") tempString); take a break;

- Then do something with tempString...
-for example
-message ("payload has been: ' |") tempString);
: test. ATR: = tempString;
END;

package, card reader;

import java.util.List;

Javax.smartcardio import. *;

Import oracle.forms.ui.VBean;
Import oracle.forms.properties.ID;
Import oracle.forms.handler.IHandler;
Import oracle.forms.ui.CustomEvent;

SerializableAttribute public class CardReaderWrapper extends kifani {

Property registered under the name of the custom event
Call it what you want...
public static final ID CARDINFO_EVENT = ID.registerProperty ("CARDINFO_EVENT");

Property to set the name of the parameter that contains the payload
the event - for example your data
public static final ID CARDINFO_DATA = ID.registerProperty ("CARDINFO_DATA");

A reference to the Forms Manager associated with this component.
It is used to send custom form events
Private Shared IHandler m_handler;

public static String strOut = null; used in part of the code ATR

public CardReaderWrapper() {}
Super();
}

/**
* Method of the oracle.forms.ui.IView class and substitute of the kifani
* base class.  This life cycle method is called one time what forms creates a
the instance of the JavaBean.
*
< B > @param Manager < /b > a reference to the handler for the JavaBean class.
*/
{} public void init (Manager IHandler)
System.out.println ("* init1 *");
Super.init (Handler);
Manager = m_handler;
If (m_handler == null) {}
System.out.println ("1: m_handler is null"); }
else {}
System.out.println ("1: m_handler =" + m_handler) ;}
System.out.println ("* init2 *");
System.out.println ("CardReaderWrapper Objct1 =" + this);

}

/**
* Function to dispatch an event and the data payload
* Return to forms
* In this case, we use the pre-defined event and the IDs payload
*
@param payload < b > < /b > to return to the event data.
*/
Private Sub dispatchMessage (String payload) {}
try {}
System.out.println ("CardReaderWrapper Objct2 =" + this);
System.out.println ("* dispatchMessage1 *");

If (m_handler == null) {}
System.out.println ("2: m_handler is null"); }
else {}
System.out.println ("2: m_handler =" + m_handler) ;}

The CustomEvent = new CustomEvent (m_handler, CARDINFO_EVENT);
System.out.println ("* dispatchMessage2 *");
m_handler. SetProperty (CARDINFO_DATA, payload);
System.out.println ("* dispatchMessage3 *");
dispatchCustomEvent (this);
System.out.println ("* dispatchMessage4 *");
} catch (Exception e) {}
e.printStackTrace ();
}
}

Public Shared Sub main (String [] args) {}

CRW CardReaderWrapper = new CardReaderWrapper();
crw.getATR ();
}

the rest of your bean code follows
and calls the dispatchMethod() method, which precedes
to contact forms

public void getATR() {}

Plant of TerminalFactory = TerminalFactory.getDefault ();

CardTerminals cardTerminals = factory.terminals ();
The list < CardTerminal > cardTerminalList;

try {}

cardTerminalList = cardTerminals.list ();

for (CardTerminal cardTerminal: cardTerminalList) {}

If (cardTerminal.isCardPresent ()) {}
Card card;

try {}

map = cardTerminal.connect ("T = 0");

card.beginExclusive ();
} catch (CardException e) {}
strOut = ("8"); This card but with card error
System.out.println (strOut);
dispatchMessage (strOut);
continue;
}
ATR atr = card.getATR ();

Byte [] atrBytes = atr.getBytes ();
strOut = '0' + javax.xml.bind.DatatypeConverter.printHexBinary (atrBytes);
System.out.println (strOut);
System.out.println ("* main1 *");
card.endExclusive ();
System.out.println ("* main2 *");
Card.Disconnect (true);
System.out.println ("* main3 *");
dispatchMessage (strOut);
}
}

} catch (CardException e) {}
System.out.println("7"); no card reader not connected? ») ;
dispatchMessage("7");

}
If (strOut == null) {}
System.out.println("9");
dispatchMessage("9");
}
}
}

 
         
 
         
 
 
		 
 Tags: Oracle Development
 
         
         
 
          
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