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/**j-Interop (Pure Java implementation of DCOM protocol)
 * Copyright (C) 2006  Vikram Roopchand
 *
 * 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 3.0 of the License, or (at your option) any later version.
 *
 * Though a sincere effort has been made to deliver a professional,
 * quality product,the library itself is distributed WITHOUT ANY WARRANTY;
 * See the GNU Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
 */

package org.jinterop.dcom.impls.automation;

import java.io.Serializable;

import org.jinterop.dcom.core.JIPointer;
import org.jinterop.dcom.core.JIStruct;

/** Implements the PARAMDESC structure of COM Automation. Contains
 * information needed for transferring a structure element, parameter,
 * or function return value between processes.
 *
 * @since 1.0
 *
 */
public final class ParamDesc implements Serializable {

	private static final long serialVersionUID = 7181403713923608809L;
	public static final short PARAMFLAG_NONE         = 0x00;
	public static final short PARAMFLAG_FIN          = 0x01;
	public static final short PARAMFLAG_FOUT         = 0x02;
	public static final short PARAMFLAG_FLCID        = 0x04;
	public static final short PARAMFLAG_FRETVAL      = 0x08;
	public static final short PARAMFLAG_FOPT         = 0x10;
	public static final short PARAMFLAG_FHASDEFAULT  = 0x20;
	public static final short PARAMFLAG_FHASCUSTDATA = 0x40;


	public final JIPointer lpVarValue;

	/**
	 * IN, OUT, etc
	 */
	public final short wPARAMFlags;

	ParamDesc(JIStruct values)
	{
		if (values == null)
		{
			lpVarValue = null;
			wPARAMFlags = -1;
			return;
		}

		lpVarValue = (JIPointer)values.getMember(0);
		//lpVarValue = (JIVariant)values.getMember(0);
		wPARAMFlags = ((Short)values.getMember(1)).shortValue();
	}

}