RAStorageWrapper.java

/* 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.FileNotFoundException;
import java.io.IOException;

import org.hsqldb.lib.Storage;

/**
 * This class is a wrapper for org.hsqldb.lib.Storage objects used by
 * OpenOffice.org.
 *
 * @author Fred Toussi (fredt@users dot sourceforge.net)
 * @version  2.3.0
 * @since  2.2.9
 */
final class RAStorageWrapper implements RandomAccessInterface {

    final Storage file;

    RAStorageWrapper(Storage virtualFile)
                           throws FileNotFoundException, IOException {
        this.file = virtualFile;
    }

    public long length() throws IOException {
        return file.length();
    }

    public void seek(long position) throws IOException {
        file.seek(position);
    }

    public long getFilePointer() throws IOException {
        return file.getFilePointer();
    }

    public int read() throws IOException {
        return file.read();
    }

    public long readLong() throws IOException {
        return file.readLong();
    }

    public int readInt() throws IOException {
        return file.readInt();
    }

    public void read(byte[] b, int offset, int length) throws IOException {
        file.read(b, offset, length);
    }

    public void write(byte[] b, int off, int len) throws IOException {
        file.write(b, off, len);
    }

    public void writeInt(int i) throws IOException {
        file.writeInt(i);
    }

    public void writeLong(long i) throws IOException {
        file.writeLong(i);
    }

    public void close() throws IOException {
        file.close();
    }

    public boolean isReadOnly() {
        return file.isReadOnly();
    }

    public boolean ensureLength(long newLong) {
        return true;
    }

    public boolean setLength(long newLength) {
        return false;
    }

    public void synch() {
        //
    }
}