/* Copyright (c) 2001-2011, The HSQL Development Group
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* Neither the name of the HSQL Development Group nor the names of its
* contributors may be used to endorse or promote products derived from this
* software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL HSQL DEVELOPMENT GROUP, HSQLDB.ORG,
* OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package org.hsqldb.persist;
import java.io.IOException;
import org.hsqldb.error.Error;
import org.hsqldb.error.ErrorCode;
import org.hsqldb.lib.LongLookup;
import org.hsqldb.map.BitMap;
import org.hsqldb.rowio.RowInputInterface;
import org.hsqldb.rowio.RowOutputInterface;
/**
* @author Fred Toussi (fredt@users dot sourceforge.net)
* @version 2.3.0
* @since 2.3.0
*/
public class BitMapCachedObject extends CachedObjectBase {
public final static int fileSizeFactor = 4;
//
BitMap bitMap;
public BitMapCachedObject(int capacity) {
bitMap = new BitMap(new int[capacity]);
hasChanged = true;
}
public CachedObject newInstance(int size) {
return new BitMapCachedObject(size);
}
public void read(RowInputInterface in) {
this.position = in.getPos();
int[] array = bitMap.getIntArray();
int capacity = array.length;
try {
for (int i = 0; i < capacity; i++) {
array[i] = in.readInt();
}
} catch (IOException e) {
throw Error.error(ErrorCode.GENERAL_IO_ERROR, e);
}
hasChanged = false;
}
public int getDefaultCapacity() {
return bitMap.getIntArray().length;
}
public int getRealSize(RowOutputInterface out) {
return bitMap.getIntArray().length * PersistentStore.INT_STORE_SIZE;
}
public void write(RowOutputInterface out) {
int[] array = bitMap.getIntArray();
int capacity = array.length;
for (int i = 0; i < capacity; i++) {
out.writeInt(array[i]);
}
out.writeEnd();
hasChanged = false;
}
public void write(RowOutputInterface out, LongLookup lookup) {
write(out);
}
public BitMap getBitMap() {
return bitMap;
}
}