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integration of an interface class for abstract access of kelondro indexed structures like kelondroTree and kelondroHashtable

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git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@987 6c8d7289-2bf4-0310-a012-ef5d649a1542
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orbiter 2005-10-26 12:37:22 +00:00
parent ada06b0674
commit 1ff0ced515
2 changed files with 62 additions and 1 deletions
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61
source/de/anomic/kelondro/kelondroIndex.java Normal file
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@ -0,0 +1,61 @@
// kelondroIndex.java
// ------------------
// part of the Kelondro Database
// (C) by Michael Peter Christen; mc@anomic.de
// first published on http://www.anomic.de
// Frankfurt, Germany, 2005
// created: 26.10.2005
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
//
// Using this software in any meaning (reading, learning, copying, compiling,
// running) means that you agree that the Author(s) is (are) not responsible
// for cost, loss of data or any harm that may be caused directly or indirectly
// by usage of this softare or this documentation. The usage of this software
// is on your own risk. The installation and usage (starting/running) of this
// software may allow other people or application to access your computer and
// any attached devices and is highly dependent on the configuration of the
// software which must be done by the user of the software; the author(s) is
// (are) also not responsible for proper configuration and usage of the
// software, even if provoked by documentation provided together with
// the software.
//
// Any changes to this file according to the GPL as documented in the file
// gpl.txt aside this file in the shipment you received can be done to the
// lines that follows this copyright notice here, but changes must not be
// done inside the copyright notive above. A re-distribution must contain
// the intact and unchanged copyright notice.
// Contributions and changes to the program code must be marked as such.
/* A kelondroIndex is a table with indexed access on the first row
Elements may be selected from the table with logarithmic computation time
using the get-method. Inserts have also the same computation order and
can be done with the put-method.
The kelondro Database provides two implementations of this interface:
kelondroTree and kelondroHashtable
*/
package de.anomic.kelondro;
import java.io.IOException;
public interface kelondroIndex {
public byte[][] get(byte[] key) throws IOException;
public byte[][] put(byte[][] row) throws IOException;
public byte[][] remove(byte[] key) throws IOException;
}

2
source/de/anomic/kelondro/kelondroTree.java
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@ -59,7 +59,7 @@ import java.util.Map;
import java.util.StringTokenizer;
import java.util.Vector;
public class kelondroTree extends kelondroRecords implements Comparator {
public class kelondroTree extends kelondroRecords implements Comparator, kelondroIndex {
// define the Over-Head-Array
private static short thisOHBytes = 2; // our record definition of two bytes