Java Card API

cardexception

2017-05-22 16:25:49 M&W SmartCard 3

javacard.framework

Class CardException

Direct Known Subclasses: UserException


public class CardExceptionextends Exception

The CardException class defines a field reason and two accessor methodsgetReason() and setReason(). The reason field encapsulates an exception cause identifier in the Java Card platform. All Java Card platform checked Exception classes should extend CardException. This class also provides a resource-saving mechanism (throwIt() method) for using a Java Card runtime environment-owned instance of this class.

Even if a transaction is in progress, the update of the internal reason

field shall not participate in the transaction. The value of the internal reason field of Java Card runtime environment-owned instance is reset to 0 on a tear or reset.


Constructor Summary
CardException (short reason)          Construct a CardException instance with the specified reason.

 

Method Summary
 short getReason ()          Get reason code
 void setReason (short reason)          Set reason code
static void throwIt (short reason)          Throw the Java Card runtime environment-owned instance of CardException class with the specified reason.

 

Methods inherited from class java.lang.Object
equals

 

Constructor Detail

CardException

public CardException(short reason)

Construct a CardException instance with the specified reason. To conserve on resources, use the throwIt() method to use the Java Card runtime environment-owned instance of this class.

Parameters:reason - the reason for the exception

Method Detail

getReason

public short getReason()

Get reason code

Returns:the reason for the exception


setReason

public void setReason(short reason)

Set reason code

Parameters:reason - the reason for the exception


throwIt

public static void throwIt(short reason) throws CardException

Throw the Java Card runtime environment-owned instance of CardException class with the specified reason. Java Card runtime environment-owned instances of exception classes are temporary Java Card runtime environment Entry Point Objects and can be accessed from any applet context. References to these temporary objects cannot be stored in class variables or instance variables or array components. See Runtime Environment Specification for the Java Card Platform, section 6.2.1 for details.

Parameters:reason - the reason for the exception

Throws: CardException- always 


Home
Product
News
Contact us