com.db4o.MetaIndex Maven / Gradle / Ivy
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/* Copyright (C) 2004 - 2005 db4objects Inc. http://www.db4o.com
This file is part of the db4o open source object database.
db4o is free software; you can redistribute it and/or modify it under
the terms of version 2 of the GNU General Public License as published
by the Free Software Foundation and as clarified by db4objects' GPL
interpretation policy, available at
http://www.db4o.com/about/company/legalpolicies/gplinterpretation/
Alternatively you can write to db4objects, Inc., 1900 S Norfolk Street,
Suite 350, San Mateo, CA 94403, USA.
db4o 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. */
package com.db4o;
/**
* The index record that is written to the database file.
* Don't obfuscate.
*
*/
public class MetaIndex implements Internal4{
// The number of entries an the length are redundant, because the handler should
// return a fixed length, but we absolutely want to make sure, we don't free
// a slot into nowhere.
public int indexAddress;
public int indexEntries;
public int indexLength;
public int patchAddress;
public int patchEntries;
public int patchLength;
public void read(YapReader reader){
indexAddress = reader.readInt();
indexEntries = reader.readInt();
indexLength = reader.readInt();
patchAddress = reader.readInt();
patchEntries = reader.readInt();
patchLength = reader.readInt();
}
public void write(YapWriter writer){
writer.writeInt(indexAddress);
writer.writeInt(indexEntries);
writer.writeInt(indexLength);
writer.writeInt(patchAddress);
writer.writeInt(patchEntries);
writer.writeInt(patchLength);
}
public void free(YapFile file){
file.free(indexAddress, indexLength);
file.free(patchAddress, patchLength);
indexAddress = 0;
indexLength = 0;
patchAddress = 0;
patchLength = 0;
}
}