/* Copyright (c) 2001-2018, 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 org.hsqldb.lib.
LongLookup;
import org.hsqldb.rowio.
RowInputInterface;
import org.hsqldb.rowio.
RowOutputInterface;
/**
* @author Fred Toussi (fredt@users dot sourceforge.net)
* @version 2.4.1
* @since 2.3.0
*/
public class
DirectoryBlockCachedObject extends
CachedObjectBase {
static final int
fileSizeFactor = 12;
//
int[]
tableId;
int[]
bitmapAddress;
char[]
freeSpace;
char[]
freeSpaceBlock;
public
DirectoryBlockCachedObject(int
capacity) {
tableId = new int[
capacity];
bitmapAddress = new int[
capacity];
freeSpace = new char[
capacity];
freeSpaceBlock = new char[
capacity];
hasChanged = true;
}
public void
read(
RowInputInterface in) {
this.
position =
in.
getFilePosition();
int
capacity =
tableId.length;
for (int
i = 0;
i <
capacity;
i++) {
tableId[
i] =
in.
readInt();
}
for (int
i = 0;
i <
capacity;
i++) {
bitmapAddress[
i] =
in.
readInt();
}
for (int
i = 0;
i <
capacity;
i++) {
freeSpace[
i] =
in.
readChar();
}
for (int
i = 0;
i <
capacity;
i++) {
freeSpaceBlock[
i] =
in.
readChar();
}
hasChanged = false;
}
public int
getDefaultCapacity() {
return
tableId.length;
}
public int
getRealSize(
RowOutputInterface out) {
return
tableId.length *
fileSizeFactor;
}
public void
write(
RowOutputInterface out) {
write(
out, null);
}
public void
write(
RowOutputInterface out,
LongLookup lookup) {
int
capacity =
tableId.length;
out.
setStorageSize(
storageSize);
for (int
i = 0;
i <
capacity;
i++) {
out.
writeInt(
tableId[
i]);
}
for (int
i = 0;
i <
capacity;
i++) {
out.
writeInt(
bitmapAddress[
i]);
}
for (int
i = 0;
i <
capacity;
i++) {
out.
writeChar(
freeSpace[
i]);
}
for (int
i = 0;
i <
capacity;
i++) {
out.
writeChar(
freeSpaceBlock[
i]);
}
out.
writeEnd();
}
public void
setTableId(int
pos, int
value) {
tableId[
pos] =
value;
hasChanged = true;
}
public void
setBitmapAddress(int
pos, int
value) {
bitmapAddress[
pos] =
value;
hasChanged = true;
}
public void
setFreeSpace(int
pos, char
value) {
freeSpace[
pos] =
value;
hasChanged = true;
}
public void
setFreeBlock(int
pos, char
value) {
freeSpaceBlock[
pos] =
value;
hasChanged = true;
}
public void
setLastUsed(int
pos, byte
value) {}
public int
getTableId(int
pos) {
return
tableId[
pos];
}
public int
getBitmapAddress(int
pos) {
return
bitmapAddress[
pos];
}
public char
getFreeSpace(int
pos) {
return
freeSpace[
pos];
}
public char
getFreeBlock(int
pos) {
return
freeSpaceBlock[
pos];
}
public int[]
getTableIdArray() {
return
tableId;
}
public int[]
getBitmapAddressArray() {
return
bitmapAddress;
}
public char[]
getFreeSpaceArray() {
return
freeSpace;
}
public char[]
getFreeBlockArray() {
return
freeSpaceBlock;
}
}