com.cloudpos.rfcardreader

Interface RFCardReaderOperationResult

All Superinterfaces:

OperationResult

public interface RFCardReaderOperationResult
extends OperationResult

The RFCardReaderOperationResult interface provides the results of operations performed by an RF card reader. It extends the OperationResult interface, including additional information specific to RF card reader operations.

The result code of an operation can be obtained using getResultCode(), which is inherited from OperationResult. This code indicates the success or type of error that occurred during the operation.

It also defines several error constants specific to RF card communication and protocol issues:

• ERR_COMMUNICATION - Indicates a communication error with the card (e.g., parity, CRC errors).
• ERR_PROTOCOL - Signifies a protocol error in the communication with the card.
• ERR_CARD_UNREACHABLE - Occurs when the card does not respond to a request.
• ERR_MULTI_CARD - Triggered when multiple cards are detected simultaneously.

Methods:

• getCard() - Retrieves the card involved in the operation, which can be an instance of MifareCard, MifareUltralightCard, or CPUCard.

Field Summary

Fields

Modifier and Type	Field and Description
static int	ERR_CARD_UNREACHABLE Error constant indicating the card did not respond to a request.
static int	ERR_COMMUNICATION Error constant indicating a communication error with the card, such as parity or CRC errors.
static int	ERR_MULTI_CARD Error constant indicating multiple cards have been detected simultaneously.
static int	ERR_PROTOCOL Error constant signifying a protocol error during communication with the card.

Fields inherited from interface com.cloudpos.OperationResult

CANCEL, ERR_DEVICE_BASE, ERR_GENERAL_ERROR, ERR_NO_INFO, ERR_NO_PERMISSION, ERR_TIMEOUT, NONE, SUCCESS

Method Summary

Modifier and Type	Method and Description
Card	getCard() Retrieves the card involved in the operation.

Methods inherited from interface com.cloudpos.OperationResult

getResultCode

Field Detail

ERR_COMMUNICATION

static final int ERR_COMMUNICATION

Error constant indicating a communication error with the card, such as parity or CRC errors. This constant is used as supplemental information for the EVT_ERROR event status.

See Also:

Constant Field Values

ERR_PROTOCOL

static final int ERR_PROTOCOL

Error constant signifying a protocol error during communication with the card. This constant provides supplemental information for the EVT_ERROR event status.

See Also:

Constant Field Values

ERR_CARD_UNREACHABLE

static final int ERR_CARD_UNREACHABLE

Error constant indicating the card did not respond to a request. This error is used to signify an unresponsive card in communication attempts.

See Also:

Constant Field Values

ERR_MULTI_CARD

static final int ERR_MULTI_CARD

Error constant indicating multiple cards have been detected simultaneously. This error is used when the reader encounters more than one card at the same time.

See Also:

Constant Field Values

Method Detail

getCard

Card getCard()

Retrieves the card involved in the operation.

Returns:

The card instance from the operation, which could be of type MifareCard, MifareUltralightCard, or CPUCard. Returns null if no card is associated with the result.