Package javacardx.external
Extension package that provides mechanisms to access memory subsystems which are not directly addressable by the Java Card runtime environment(Java Card RE) on the Java Card platform. The platform must support this optional package if an external memory access feature is included in the implementation.
The javacardx.external
package contains the Memory
class and the MemoryAccess interface. The Memory class
provides a factory method for creating an instance of the MemoryAccess
interface suitable for accessing supported memory subsystems.
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Interface Summary Interface Description MemoryAccess This interface provides methods to read and write the external memory space. -
Class Summary Class Description Memory This class provides access to memory subsystems that are not directly addressable, typically that of other contactless state machine handlers such as MifareTM. -
Exception Summary Exception Description ExternalException ExternalExceptionrepresents an external subsystem related exception.