com.cloudpos

Interface OperationResult

All Known Subinterfaces:

FingerprintNoneOperationResult, FingerprintOperationResult, FingerprintPressOperationResult, FingerprintRemoveOperationResult, FingerprintTimeoutOperationResult, MSROperationResult, PINPadOperationResult, PrinterOperationResult, RFCardReaderOperationResult, SerialPortOperationResult, SignatureOperationResult, SmartCardReaderOperationResult

public interface OperationResult

The OperationResult interface defines the structure for operation results generated by device implementations in the com.cloudpos package. These results notify applications about the completion and outcomes of requested operations.

OperationResult serves as a template for all operation event results. Each specific service package should derive an interface from OperationResult, adding methods to access data relevant to that specific device and result type.

The getResultCode method allows applications to retrieve the result of an operation. Defined values in OperationResult for this purpose include:

• NONE: No operation is pending. Used as an initialization value for pre-created events.
• SUCCESS: The operation completed successfully.
• CANCEL: The operation was externally cancelled and not completed.
• ERR_GENERAL_ERROR: A catastrophic error occurred during an operation, representing the highest-priority error.
• ERR_NO_PERMISSION: The operation is not available, possibly due to lack of necessary permissions or because it is not supported by the platform * implementation.
• ERR_NO_INFO: Used when no specific information is available for an error. This code should be set if the error cause does not match any documented descriptions.
• ERR_TIMEOUT: The error resulted from a timeout expiration.
• ERR_DEVICE_BASE: The start value of device error.

Additional device-specific error codes should start from ERR_DEVICE_BASE.

Field Summary

Fields

Modifier and Type	Field and Description
static int	CANCEL
static int	ERR_DEVICE_BASE
static int	ERR_GENERAL_ERROR
static int	ERR_NO_INFO
static int	ERR_NO_PERMISSION
static int	ERR_TIMEOUT
static int	NONE
static int	SUCCESS

Method Summary

Modifier and Type	Method and Description
int	getResultCode() Retrieves the result code of an operation.

Field Detail

NONE

static final int NONE

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Constant Field Values

SUCCESS

static final int SUCCESS

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Constant Field Values

CANCEL

static final int CANCEL

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Constant Field Values

ERR_GENERAL_ERROR

static final int ERR_GENERAL_ERROR

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Constant Field Values

ERR_NO_PERMISSION

static final int ERR_NO_PERMISSION

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Constant Field Values

ERR_NO_INFO

static final int ERR_NO_INFO

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Constant Field Values

ERR_TIMEOUT

static final int ERR_TIMEOUT

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Constant Field Values

ERR_DEVICE_BASE

static final int ERR_DEVICE_BASE

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Constant Field Values

Method Detail

getResultCode

int getResultCode()

Retrieves the result code of an operation.

Returns:

An integer constant describing the status of the operation, such as NONE, SUCCESS, CANCEL, etc.