Examples of cascading.tuple.Tuple.clear()

cascading.tuple.Tuple.clear()
Method clear empties this Tuple instance. A subsequent call to {@link #size()} will return zero ({@code 0}).

    boolean result = sourceCall.getInput().next(key, value);


    if (!result) { return false; }


    Tuple tuple = sourceCall.getIncomingEntry().getTuple();
    tuple.clear();


    tuple.add(getBytes(key));
    tuple.add(getBytes(value));


    return true;

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        Tuple result = new Tuple(); // is re-used


        @Override
        public Tuple makeResult( Tuple[] tuples )
          {
          result.clear();


          // flatten the results into one Tuple
          for( Tuple lastValue : tuples )
            result.addAll( lastValue );

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    if( !matcher.find() )
      throw new OperationException( "could not match pattern: [" + getPatternString() + "] with value: [" + value + "]" );


    Tuple output = functionCall.getContext().getRhs();


    output.clear();


    if( groups != null )
      onGivenGroups( functionCall, matcher, output );
    else
      onFoundGroups( functionCall, matcher, output );

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    if( value == null )
      value = "";


    Tuple output = functionCall.getContext().getRhs();


    output.clear();


    String[] split = functionCall.getContext().getLhs().split( value, length );


    for( int i = 0; i < split.length; i++ )
      output.add( split[ i ] );

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  @Override
  public void operate( FlowProcess flowProcess, FunctionCall<Pair<DocumentBuilder, Tuple>> functionCall )
    {
    Tuple tuple = functionCall.getContext().getRhs();


    tuple.clear();


    String argument = functionCall.getArguments().getString( 0 );
    Document document = parseDocument( functionCall.getContext().getLhs(), argument );


    for( int i = 0; i < getExpressions().size(); i++ )

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    boolean result = sourceCall.getInput().next(NullWritable.get(), value);


    if (!result) return false;


    Tuple tuple = sourceCall.getIncomingEntry().getTuple();
    tuple.clear();


    Message.Builder builder = getPrototype();
    builder.clear();
    if (registry != null) {
      tuple.add(builder.mergeFrom(value.getBytes(), 0, value.getLength(), registry).build());

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