Module java.smartcardio
Package javax.smartcardio

Class CardTerminal

java.lang.Object
javax.smartcardio.CardTerminal
public abstract class CardTerminal extends Object
A Smart Card terminal, sometimes referred to as a Smart Card Reader. A CardTerminal object can be obtained by calling CardTerminals.list() or CardTerminals.getTerminal().

Note that physical card readers with slots for multiple cards are represented by one CardTerminal object per such slot.

Since:
1.6
See Also:

  • Constructor Summary

    Constructors
    Modifier
    Constructor
    Description
    protected
    CardTerminal()
    Constructs a new CardTerminal object.

  • Method Summary

    Modifier and Type
    Method
    Description
    abstract Card
    connect(String protocol)
    Establishes a connection to the card.
    abstract String
    getName()
    Returns the unique name of this terminal.
    abstract boolean
    isCardPresent()
    Returns whether a card is present in this terminal.
    abstract boolean
    waitForCardAbsent(long timeout)
    Waits until a card is absent in this terminal or the timeout expires.
    abstract boolean
    waitForCardPresent(long timeout)
    Waits until a card is present in this terminal or the timeout expires.

    Methods declared in class java.lang.Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

  • Constructor Details

    • CardTerminal

      protected CardTerminal()
      Constructs a new CardTerminal object.

      This constructor is called by subclasses only. Application should call list() or getTerminal() to obtain a CardTerminal object.

  • Method Details

    • getName

      public abstract String getName()
      Returns the unique name of this terminal.
      Returns:
      the unique name of this terminal.

    • connect

      public abstract Card connect(String protocol) throws CardException
      Establishes a connection to the card. If a connection has previously established using the specified protocol, this method returns the same Card object as the previous call.
      Parameters:
      protocol - the protocol to use ("T=0", "T=1", or "T=CL"), or "*" to connect using any available protocol.
      Returns:
      the card the connection has been established with
      Throws:
      NullPointerException - if protocol is null
      IllegalArgumentException - if protocol is an invalid protocol specification
      CardNotPresentException - if no card is present in this terminal
      CardException - if a connection could not be established using the specified protocol or if a connection has previously been established using a different protocol
      SecurityException - if a SecurityManager exists and the caller does not have the required permission

    • isCardPresent

      public abstract boolean isCardPresent() throws CardException
      Returns whether a card is present in this terminal.
      Returns:
      whether a card is present in this terminal.
      Throws:
      CardException - if the status could not be determined

    • waitForCardPresent

      public abstract boolean waitForCardPresent(long timeout) throws CardException
      Waits until a card is present in this terminal or the timeout expires. If the method returns due to an expired timeout, it returns false. Otherwise it return true.

      If a card is present in this terminal when this method is called, it returns immediately.

      Parameters:
      timeout - if positive, block for up to timeout milliseconds; if zero, block indefinitely; must not be negative
      Returns:
      false if the method returns due to an expired timeout, true otherwise.
      Throws:
      IllegalArgumentException - if timeout is negative
      CardException - if the operation failed

    • waitForCardAbsent

      public abstract boolean waitForCardAbsent(long timeout) throws CardException
      Waits until a card is absent in this terminal or the timeout expires. If the method returns due to an expired timeout, it returns false. Otherwise it return true.

      If no card is present in this terminal when this method is called, it returns immediately.

      Parameters:
      timeout - if positive, block for up to timeout milliseconds; if zero, block indefinitely; must not be negative
      Returns:
      false if the method returns due to an expired timeout, true otherwise.
      Throws:
      IllegalArgumentException - if timeout is negative
      CardException - if the operation failed