/*
* Copyright 2004-2011 H2 Group. Multiple-Licensed under the H2 License,
* Version 1.0, and under the Eclipse Public License, Version 1.0
* (http://h2database.com/html/license.html).
* Initial Developer: H2 Group
*/
package org.h2.store.fs;
import java.io.IOException;
import java.nio.ByteBuffer;
import java.nio.MappedByteBuffer;
import java.nio.channels.FileChannel;
import java.nio.channels.FileLock;
import java.nio.channels.ReadableByteChannel;
import java.nio.channels.WritableByteChannel;
/**
* The base class for file implementations.
*/
public abstract class FileBase extends FileChannel {
public abstract long size() throws IOException;
public abstract long position() throws IOException;
public abstract FileChannel position(long newPosition) throws IOException;
public abstract int read(ByteBuffer dst) throws IOException;
public abstract int write(ByteBuffer src) throws IOException;
public abstract FileChannel truncate(long size) throws IOException;
public void force(boolean metaData) throws IOException {
// ignore
}
protected void implCloseChannel() throws IOException {
// ignore
}
public FileLock lock(long position, long size, boolean shared) throws IOException {
throw new UnsupportedOperationException();
}
public MappedByteBuffer map(MapMode mode, long position, long size) throws IOException {
throw new UnsupportedOperationException();
}
public int read(ByteBuffer dst, long position) throws IOException {
throw new UnsupportedOperationException();
}
public long read(ByteBuffer[] dsts, int offset, int length) throws IOException {
throw new UnsupportedOperationException();
}
public long transferFrom(ReadableByteChannel src, long position, long count) throws IOException {
throw new UnsupportedOperationException();
}
public long transferTo(long position, long count, WritableByteChannel target)
throws IOException {
throw new UnsupportedOperationException();
}
public FileLock tryLock(long position, long size, boolean shared) throws IOException {
throw new UnsupportedOperationException();
}
public int write(ByteBuffer src, long position) throws IOException {
throw new UnsupportedOperationException();
}
public long write(ByteBuffer[] srcs, int offset, int length) throws IOException {
throw new UnsupportedOperationException();
}
}