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/*
 * StorageAccess.java
 *
 * Created on 17. August 2004, 13:32
 */

package com.sun.star.sdbcx.comp.hsqldb;

/**
 *
 * @author  oj93728
 */

public class NativeStorageAccess {
    static { NativeLibraries.load(); }
    
    public static final int READ            = 1;
    public static final int SEEKABLE        = 2;
    public static final int SEEKABLEREAD    = 3;
    public static final int WRITE           = 4;
    public static final int READWRITE       = 7;
    public static final int TRUNCATE        = 8;

    /** Creates a new instance of StorageAccess */
    public NativeStorageAccess(String name,String _mode,Object key) throws java.io.IOException{
        try {
            int mode = NativeStorageAccess.SEEKABLEREAD;
            if ( _mode.equals("rw") )
                mode = NativeStorageAccess.READWRITE | NativeStorageAccess.SEEKABLE; 

            openStream(name, (String)key, mode);
        } catch(Exception e){            
            throw new java.io.IOException();
        }
    }
    public native void openStream(String name,String key, int mode);
    public native void close(String name,String key) throws java.io.IOException;
    
    public native long getFilePointer(String name,String key) throws java.io.IOException;
    
    public native long length(String name,String key) throws java.io.IOException;
    
    public native int read(String name,String key) throws java.io.IOException;
    
    public native int read(String name,String key,byte[] b, int off, int len) throws java.io.IOException;
    
    public native int readInt(String name,String key) throws java.io.IOException;
    
    public native void seek(String name,String key,long position) throws java.io.IOException;
    
    public native void write(String name,String key,byte[] b, int offset, int length) throws java.io.IOException;
    
    public native void writeInt(String name,String key,int v) throws java.io.IOException;
}