| // Copyright 2004 The Apache Software Foundation |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| package org.apache.tapestry.contrib.table.model.common; |
| |
| import java.util.Iterator; |
| import java.util.NoSuchElementException; |
| |
| /** |
| * @version $Id$ |
| * @author mindbridge |
| */ |
| public class ArrayIterator implements Iterator |
| { |
| private Object[] m_arrValues; |
| private int m_nFrom; |
| private int m_nTo; |
| private int m_nCurrent; |
| |
| public ArrayIterator(Object[] arrValues) |
| { |
| this(arrValues, 0, arrValues.length); |
| } |
| |
| public ArrayIterator(Object[] arrValues, int nFrom, int nTo) |
| { |
| m_arrValues = arrValues; |
| m_nFrom = nFrom; |
| m_nTo = nTo; |
| |
| if (m_nFrom < 0) |
| m_nFrom = 0; |
| if (m_nTo < m_nFrom) |
| m_nTo = m_nFrom; |
| if (m_nTo > m_arrValues.length) |
| m_nTo = m_arrValues.length; |
| |
| m_nCurrent = m_nFrom; |
| } |
| |
| /** |
| * @see java.util.Iterator#hasNext() |
| */ |
| public boolean hasNext() |
| { |
| return m_nCurrent < m_nTo; |
| } |
| |
| /** |
| * @see java.util.Iterator#next() |
| */ |
| public Object next() |
| { |
| //System.out.println("index: " + m_nCurrent + " size: " + m_arrValues.length + " to: " + m_nTo); |
| if (!hasNext()) |
| throw new NoSuchElementException(); |
| return m_arrValues[m_nCurrent++]; |
| } |
| |
| /** |
| * @see java.util.Iterator#remove() |
| */ |
| public void remove() |
| { |
| throw new UnsupportedOperationException(); |
| } |
| |
| } |