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https://github.com/Alfresco/alfresco-community-repo.git
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4e2300f095
git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/HEAD/root@5186 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261
103 lines
2.8 KiB
Java
103 lines
2.8 KiB
Java
/*
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* Copyright (C) 2005-2007 Alfresco Software Limited.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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* As a special exception to the terms and conditions of version 2.0 of
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* the GPL, you may redistribute this Program in connection with Free/Libre
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* and Open Source Software ("FLOSS") applications as described in Alfresco's
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* FLOSS exception. You should have recieved a copy of the text describing
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* the FLOSS exception, and it is also available here:
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* http://www.alfresco.com/legal/licensing"
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*/
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package org.alfresco.jcr.util;
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import java.util.NoSuchElementException;
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import javax.jcr.RangeIterator;
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/**
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* Alfresco implementation of a Node Iterator
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*
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* @author David Caruana
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*/
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public abstract class AbstractRangeIterator implements RangeIterator
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{
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private int position = -1;
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/**
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* Construct
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*
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* @param context session context
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* @param nodes node list
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*/
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public AbstractRangeIterator()
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{
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}
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/**
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* Skip 1 position
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*
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* @return current position
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*/
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protected long skip()
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{
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skip(1);
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return position;
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}
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/* (non-Javadoc)
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* @see javax.jcr.RangeIterator#skip(long)
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*/
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public void skip(long skipNum)
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{
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if (skipNum < 0)
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{
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throw new IllegalArgumentException("skipNum must be positive.");
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}
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if (position + skipNum >= getSize())
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{
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throw new NoSuchElementException("Cannot skip " + skipNum + " elements from position " + getPosition() + " as only " + getSize() + " elements are available.");
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}
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position += skipNum;
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}
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/* (non-Javadoc)
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* @see javax.jcr.RangeIterator#getPosition()
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*/
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public long getPosition()
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{
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return position + 1;
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}
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/* (non-Javadoc)
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* @see java.util.Iterator#hasNext()
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*/
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public boolean hasNext()
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{
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return getPosition() < getSize();
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}
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/* (non-Javadoc)
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* @see java.util.Iterator#remove()
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*/
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public void remove()
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{
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throw new UnsupportedOperationException();
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}
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}
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