/* Copyright (c) 2007 Timothy Wall, All Rights Reserved
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
* <p/>
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*/
package com.sun.jna.ptr;
import com.sun.jna.Memory;
import com.sun.jna.PointerType;
/** Provides generic "pointer to type" functionality, often used in C
* code to return values to the caller in addition to a function result.
* <p>
* Derived classes should define <code>setValue(<T>)</code>
* and <code><T> getValue()</code> methods which write to/read from
* memory.
* <p>This class derives from PointerType instead of Memory in order to
* restrict the API to only <code>getValue/setValue</code>.
* <p>NOTE: this class would ideally be replaced by a generic.
*/
public abstract class ByReference extends PointerType {
protected ByReference(int dataSize) {
setPointer(new Memory(dataSize));
}
}