SCPDiscoveryFilter

Objective-C


@interface SCPDiscoveryFilter : NSObject

Swift

class DiscoveryFilter : NSObject

The SCPDiscoveryFilter contains information used to single out a reader during the discovery process. When a filter is provided, only the reader matching the filter will be returned during discovery, and discovery will complete once the reader is found.

  • Creates a filter to discover a reader by its serial number.

    Declaration

    Objective-C

    + (nullable instancetype)filterBySerialNumber:(nonnull NSString *)serialNumber;

    Swift

    class func bySerialNumber(_ serialNumber: String) -> Self?

    Parameters

    serialNumber

    The serial number of the reader to discover. Must not be empty.

    Return Value

    A discovery filter configured to match the specified serial number, or nil if serialNumber is empty.

  • Creates a filter to discover a reader by its reader ID (tmr_*).

    Declaration

    Objective-C

    + (nullable instancetype)filterByReaderId:(nonnull NSString *)readerId;

    Swift

    class func byReaderId(_ readerId: String) -> Self?

    Parameters

    readerId

    The ID of the reader to discover. Must start with “tmr_”.

    Return Value

    A discovery filter configured to match the specified reader ID, or nil if readerId is invalid.

  • Creates a filter that allows all readers to be discovered (no filtering).

    Declaration

    Objective-C

    + (nonnull instancetype)none;

    Swift

    class func none() -> Self

    Return Value

    A discovery filter that does not restrict discovery.

  • Unavailable

    Use the factory methods to create instances.

    Declaration

    Objective-C

    - (nonnull instancetype)init;

  • Unavailable

    Use the factory methods to create instances.

    Declaration

    Objective-C

    + (nonnull instancetype)new;