/* Copyright (c) 2001-2017, 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.
Row;
import org.hsqldb.
RowAction;
import org.hsqldb.
Session;
import org.hsqldb.
TableBase;
import org.hsqldb.error.
Error;
import org.hsqldb.error.
ErrorCode;
import org.hsqldb.index.
Index;
import org.hsqldb.navigator.
RowIterator;
import org.hsqldb.rowio.
RowInputInterface;
/**
* @author Fred Toussi (fredt@users dot sourceforge.net)
* @version 2.3.5
* @since 2.3.0
*/
public abstract class
SimpleStore implements
PersistentStore {
protected
DataFileCache cache;
protected
TableSpaceManager spaceManager;
protected int
defaultObjectSize;
public boolean
isRowStore() {
return false;
}
public void
set(
CachedObject object) {}
public
CachedObject get(long
i) {
return
cache.
get(
i, this, false);
}
public
CachedObject get(
CachedObject object, boolean
keep) {
return
cache.
get(
object, this,
keep);
}
public
CachedObject get(long
i, boolean
keep) {
return
cache.
get(
i, this,
keep);
}
public void
remove(
CachedObject object) {
if (
cache != null) {
cache.
remove(
object);
spaceManager.
release(
object.
getPos(),
object.
getStorageSize());
}
}
public boolean
canRead(
Session session, long
pos, int
mode, int[]
colMap) {
return true;
}
public boolean
canRead(
Session session,
CachedObject object, int
mode,
int[]
colMap) {
return true;
}
public void
commitPersistence(
CachedObject object) {}
public int
getDefaultObjectSize() {
return
defaultObjectSize;
}
public
CachedObject getNewCachedObject(
Session session,
Object object,
boolean
tx) {
throw
Error.
runtimeError(
ErrorCode.
U_S0500, "PersistentStore");
}
public void
removeAll() {}
public
DataFileCache getCache() {
return
cache;
}
public
TableSpaceManager getSpaceManager() {
return
spaceManager;
}
public void
setSpaceManager(
TableSpaceManager manager) {
spaceManager =
manager;
}
public boolean
isMemory() {
return
cache == null;
}
public void
reindex(
Session session,
Index index) {}
public void
setCache(
DataFileCache cache) {
this.
cache =
cache;
}
public void
release() {}
public
PersistentStore getAccessorStore(
Index index) {
return null;
}
public
CachedObject getAccessor(
Index key) {
return null;
}
public double
searchCost(
Session session,
Index idx, int
count,
int
opType) {
return 1;
}
public long
elementCount() {
return 0;
}
public long
elementCount(
Session session) {
return 0;
}
public long
elementCountUnique(
Index index) {
return 0;
}
public void
setElementCount(
Index key, long
size, long
uniqueSize) {}
public void
setAccessor(
Index key,
CachedObject accessor) {}
public void
setAccessor(
Index key, long
accessor) {}
public boolean
hasNull(int
pos) {
return false;
}
public void
resetAccessorKeys(
Session session,
Index[]
keys) {}
public void
setMemory(boolean
mode) {}
public void
delete(
Session session,
Row row) {}
public
CachedObject get(
CachedObject object,
RowInputInterface in) {
return
object;
}
public void
indexRow(
Session session,
Row row) {}
public void
indexRows(
Session session) {}
public
RowIterator rowIterator() {
return null;
}
public
Index[]
getAccessorKeys() {
return null;
}
public void
moveDataToSpace(
Session session) {}
public void
moveData(
Session session,
PersistentStore other, int
colindex,
int
adjust) {}
public void
setReadOnly(boolean
readonly) {}
public void
readLock() {}
public void
readUnlock() {}
public void
writeLock() {}
public void
writeUnlock() {}
public
TableBase getTable() {
return null;
}
public long
getTimestamp() {
return 0;
}
public void
setTimestamp(long
timestamp) {}
public void
commitRow(
Session session,
Row row, int
changeAction,
int
txModel) {}
public void
rollbackRow(
Session session,
Row row, int
changeAction,
int
txModel) {}
public void
postCommitAction(
Session session,
RowAction rowAction) {}
}