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## opencard.core.service
Interface CardIDFilter

public abstract interface CardIDFilter

An interface for filtering `CardID`s. An application may be interested only in smartcards with a particular ATR. This interface can be used in combination with class `CardRequest` to select some ATRs, represented by an instance of class `CardID`.

See Also:
  `CardID`, `CardRequest`

Method Summary
`boolean` | `isCandidate(CardID cardID)` Checks whether a card ID is a candidate for satisfying a card request.

Method Detail

### isCandidate

    public boolean isCandidate(CardID cardID)

  Checks whether a card ID is a candidate for satisfying a card request.
  Parameters:
    `cardID` - the card ID that may be a candidate
  Returns:
    `true` if the card ID is a candidate, `false` otherwise

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