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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;
import org.jinterop.dcom.core.JIUnion;

/**
 * Implements the VARDESC structure of COM Automation
 *
 * @since 1.0
 *
 */
public final class VarDesc implements Serializable {

    private static final long serialVersionUID = -3874889610447398180L;
    public static final int VAR_PERINSTANCE = 0;
    public static final int VAR_STATIC = 1;
    public static final int VAR_CONST = 2;
    public static final int VAR_DISPATCH = 3;

    public final int memberId;
    public final JIPointer lpstrSchema;
    public final JIUnion u;
    /**
     * Contains the variable type.
     */
    public final ElemDesc elemdescVar;
    /**
     * Definition of flags follows
     */
    public final short wVarFlags;
    public final int varkind;

    VarDesc(JIPointer values) {
        this(values.isNull() ? null : (JIStruct) values.getReferent());
    }

    VarDesc(JIStruct filledStruct) {
        if (filledStruct == null) {
            memberId = -1;
            lpstrSchema = null;
            u = null;
            elemdescVar = null;
            wVarFlags = -1;
            varkind = -1;
            return;
        }

        memberId = ((Number) filledStruct.getMember(0)).intValue();
        lpstrSchema = (JIPointer) filledStruct.getMember(1);
        u = (JIUnion) filledStruct.getMember(2);
        elemdescVar = new ElemDesc((JIStruct) filledStruct.getMember(3));
        wVarFlags = ((Number) filledStruct.getMember(4)).shortValue();
        varkind = ((Number) filledStruct.getMember(5)).intValue();
    }

}