Class TupleArrayIterator

src/java/simpledb/Parser.java:691–745

}

class TupleArrayIterator implements OpIterator {
    /**
	 *
	 */
    private static final long serialVersionUID = 1L;
    final List<Tuple> tups;
    Iterator<Tuple> it = null;

    public TupleArrayIterator(List<Tuple> tups) {
        this.tups = tups;
    }

    public void open() {
        it = tups.iterator();
    }

    /** @return true if the iterator has more items. */
    public boolean hasNext() {
        return it.hasNext();
    }

    /**
     * Gets the next tuple from the operator (typically implementing by reading
     * from a child operator or an access method).
     *
     * @return The next tuple in the iterator, or null if there are no more
     *         tuples.
     */
    public Tuple next() throws
            NoSuchElementException {
        return it.next();
    }

    /**
     * Resets the iterator to the start.
     *
     */
    public void rewind() {
        it = tups.iterator();
    }

    /**
     * Returns the TupleDesc associated with this OpIterator.
     */
    public TupleDesc getTupleDesc() {
        return tups.get(0).getTupleDesc();
    }

    /**
     * Closes the iterator.
     */
    public void close() {
    }

}