Java Card API

cardremoteobject

2017-05-22 16:26:33 M&W SmartCard 5

javacard.framework.service

Class CardRemoteObject

All Implemented Interfaces: Remote


public class CardRemoteObjectextends Object implements Remote

A convenient base class for remote objects for the Java Card platform. An instance of a subclass of this CardRemoteObject class will be exported automatically upon construction.

Version:

1.0

Constructor Summary
CardRemoteObject ()          Creates a new CardRemoteObject and automatically exports it.

 

Method Summary
static void export (Remote  obj)          Exports the specified remote object.
static void unexport (Remote  obj)          Unexports the specified remote object.

 

Methods inherited from class java.lang.Object
equals

 

Constructor Detail

CardRemoteObject

public CardRemoteObject()

Creates a new CardRemoteObject and automatically exports it. When exported, the object is enabled for remote access from outside the card until unexported. Only when the object is enabled for remote access can it be returned as the initial reference during selection or returned by a remote method. In addition, remote methods can be invoked only on objects enabled for remote access.

Method Detail

export

public static void export(Remote  obj) throws SecurityException

Exports the specified remote object. The object is now enabled for remote access from outside the card until unexported. In order to remotely access the remote object from the terminal client, it must either be set as the initial reference or be returned by a remote method.

Parameters:obj - the remotely accessible object

Throws: SecurityException- if the specified obj parameter is not owned by the caller context

SystemException- with the following reason codes:

  • SystemException.NO_RESOURCE if too many exported remote objects. All implementations must support a minimum of 16 exported remote objects.



unexport

public static void unexport(Remote  obj) throws SecurityException

Unexports the specified remote object. After applying this method, the object cannot be remotely accessed from outside the card until it is exported again. Note:

  • If this method is called during the session in which the specified remote object parameter is the initial reference object or has been returned by a remote method, the specified remote object will continue to be remotely accessible until the end of the associated selection session(s).


Parameters:obj - the remotely accessible object

Throws: SecurityException- if the specified obj parameter is not owned by the caller context 


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