src/main/java/it/unibo/bd1819/mapper/FindThreeActorsMapper.java
private Text buildNewValue(final Text oldKey, final Text oldValue) {
        return new Text(oldKey.toString().split(CUSTOM_KEY_SEPARATOR)[1] + CUSTOM_VALUE_SEPARATOR +
                oldValue.toString() +
                CUSTOM_VALUE_SEPARATOR +
                1);
    }
/**
     * Create the new value for the sort
     * @param oldKey the old key, formed by directorID:actorID
     * @param oldValue the movies that a director has directed
     * @return a string formed by actorID,oldValue
     */
Create the new value for the sort
@param oldKey the old key, formed by directorID:actorID
@param oldValue the movies that a director has directed
@return a string formed by actorID,oldValue
Create the new value for the sort @param oldKey the old key formed by directorID : actorID @param oldValue the movies that a director has directed @return a string formed by actorID oldValue
private Text buildNewValue(final Text oldKey, final Text oldValue) {
        return new Text(oldKey.toString().split(CUSTOM_KEY_SEPARATOR)[1] + CUSTOM_VALUE_SEPARATOR +
                oldValue.toString() +
                CUSTOM_VALUE_SEPARATOR +
                1);
    }
private Text buildNewValue ( final Text oldKey , final Text oldValue ) { return new Text ( oldKey . toString ( ) . split ( CUSTOM_KEY_SEPARATOR ) [ 1 ] + CUSTOM_VALUE_SEPARATOR + oldValue . toString ( ) + CUSTOM_VALUE_SEPARATOR + 1 ) ; }
Create the new value for the sort
 @param oldKey the old key, formed by directorID:actorID
 @param oldValue the movies that a director has directed
 @return a string formed by actorID,oldValue
Create the new value for the sort @param oldKey the old key formed by directorID : actorID @param oldValue the movies that a director has directed @return a string formed by actorID oldValue