/* Copyright (c) 2001-2015, 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;
/**
* Interface for an object stored in the memory cache.
*
* @author Fred Toussi (fredt@users dot sourceforge.net)
* @version 2.3.3
* @since 1.8.0
*/
public interface
CachedObject {
CachedObject[]
emptyArray = new
CachedObject[]{};
boolean
isMemory();
void
updateAccessCount(int
count);
int
getAccessCount();
void
setStorageSize(int
size);
int
getStorageSize();
boolean
isInvariable();
boolean
isBlock();
long
getPos();
void
setPos(long
pos);
boolean
isNew();
boolean
hasChanged();
void
setChanged(boolean
flag);
boolean
isKeepInMemory();
boolean
keepInMemory(boolean
keep);
boolean
isInMemory();
void
setInMemory(boolean
in);
void
restore();
void
destroy();
int
getRealSize(
RowOutputInterface out);
void
read(
RowInputInterface in);
int
getDefaultCapacity();
void
write(
RowOutputInterface out);
void
write(
RowOutputInterface out,
LongLookup lookup);
}