1 | /*
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2 | * DocumentStream.java
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3 | * Copyright (C) 2002 New Zealand Digital Library, http://www.nzdl.org
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4 | *
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5 | * This program is free software; you can redistribute it and/or modify
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6 | * it under the terms of the GNU General Public License as published by
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7 | * the Free Software Foundation; either version 2 of the License, or
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8 | * (at your option) any later version.
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9 | *
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10 | * This program is distributed in the hope that it will be useful,
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11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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13 | * GNU General Public License for more details.
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14 | *
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15 | * You should have received a copy of the GNU General Public License
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16 | * along with this program; if not, write to the Free Software
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17 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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18 | */
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19 | package org.greenstone.gsdl3.selfContained;
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20 |
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21 | // XML classes
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22 | import org.w3c.dom.Document;
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23 |
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24 | // other java classes
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25 | import java.io.Serializable;
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26 |
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27 |
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28 | /**
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29 | * Document Stream represents a stream of XML documents
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30 | *
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31 | * Based on algorithms in ...
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32 | *
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33 | * @author <a href="http://www.cs.waikato.ac.nz/~say1/">stuart yeates</a> (<a href="mailto:[email protected]">s
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34 | [email protected]</a>) at the <a href="http://www.nzdl.org">New Zealand Digital Library</a>
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35 | * @version $Revision: 3615 $
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36 | *
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37 | */
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38 | public interface DocumentStream extends Cloneable, Serializable {
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39 |
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40 | /**
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41 | * Get the next document
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42 | *
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43 | * @exception java.io.Exception when something goes wrong
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44 | * @return the next document
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45 | */
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46 | public Document nextDocument() throws Exception ;
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47 | /**
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48 | * Is there a next document?
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49 | *
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50 | * @exception java.io.Exception when something goes wrong
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51 | * @return true if there is a next document
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52 | */
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53 | public boolean hasNextDocument() throws Exception ;
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54 |
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55 | }
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