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git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@2118 6c8d7289-2bf4-0310-a012-ef5d649a1542
98 lines
3.9 KiB
Java
98 lines
3.9 KiB
Java
// kelondroRA.java
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// -----------------------
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// part of The Kelondro Database
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// (C) by Michael Peter Christen; mc@anomic.de
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// first published on http://www.anomic.de
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// Frankfurt, Germany, 2004
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// last major change: 09.02.2004
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//
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// This program is free software; you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation; either version 2 of the License, or
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// (at your option) any later version.
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//
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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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//
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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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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//
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// Using this software in any meaning (reading, learning, copying, compiling,
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// running) means that you agree that the Author(s) is (are) not responsible
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// for cost, loss of data or any harm that may be caused directly or indirectly
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// by usage of this softare or this documentation. The usage of this software
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// is on your own risk. The installation and usage (starting/running) of this
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// software may allow other people or application to access your computer and
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// any attached devices and is highly dependent on the configuration of the
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// software which must be done by the user of the software; the author(s) is
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// (are) also not responsible for proper configuration and usage of the
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// software, even if provoked by documentation provided together with
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// the software.
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//
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// Any changes to this file according to the GPL as documented in the file
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// gpl.txt aside this file in the shipment you received can be done to the
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// lines that follows this copyright notice here, but changes must not be
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// done inside the copyright notive above. A re-distribution must contain
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// the intact and unchanged copyright notice.
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// Contributions and changes to the program code must be marked as such.
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/*
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The random access interface for the kelondro database.
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kelondro stores data always through the kelondroRecords class,
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which in turn also needs a random access file or similar
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to store the database structure. To provide more than
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ony file - random-access, we need an abstract interface.
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*/
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package de.anomic.kelondro;
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import java.io.IOException;
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import java.util.Map;
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public interface kelondroRA {
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// logging support
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public String name();
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// pseudo-native methods:
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public int read() throws IOException;
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public void write(int b) throws IOException;
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public int read(byte[] b, int off, int len) throws IOException;
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public void write(byte[] b, int off, int len) throws IOException;
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public void seek(long pos) throws IOException;
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public void close() throws IOException;
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// derived methods:
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public void readFully(byte[] b, int off, int len) throws IOException;
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public byte[] readFully() throws IOException;
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public byte readByte() throws IOException;
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public void writeByte(int v) throws IOException;
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public short readShort() throws IOException;
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public void writeShort(int v) throws IOException;
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public int readInt() throws IOException;
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public void writeInt(int v) throws IOException;
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public long readLong() throws IOException;
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public void writeLong(long v) throws IOException;
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public void write(byte[] b) throws IOException;
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public void writeLine(String line) throws IOException;
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public String readLine() throws IOException;
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public void writeMap(Map props, String comment) throws IOException;
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public Map readMap() throws IOException;
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public void writeArray(byte[] b) throws IOException;
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public byte[] readArray() throws IOException;
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}
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