Examples of ptolemy.actor.NoTokenException

ptolemy.actor.NoTokenException
This exception is thrown when an attempt is made to get a token from a receiver that does not contain one. To avoid this exception, code should use the hasToken() method in the Receiver interface to determine if there is a token waiting. @author Lukito Muliadi @version $Id: NoTokenException.java,v 1.25 2005/07/08 19:37:34 cxh Exp $ @since Ptolemy II 0.2 @Pt.ProposedRating Green (lmuliadi) @Pt.AcceptedRating Green (neuendor) @see Receiver

     *  @return A token.
     *  @exception NoTokenException If no token is available.
     */
    public Token get() throws NoTokenException {
        if (_token == null) {
            throw new NoTokenException(getContainer(),
                    "Attempt to get data from an empty receiver.");
        }


        return _token;
    }

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     *  @return A token.
     *  @exception NoTokenException If no token is available.
     */
    public Token remove() throws NoTokenException {
        if (_token == null) {
            throw new NoTokenException(getContainer(),
                    "Attempt to get data from an empty receiver.");
        }


        Token buffer = _token;
        _token = null;

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