BasicTypeWrapper.java

/* 
** Author(s): Miguel Calejo
** Contact:   interprolog@declarativa.com, http://www.declarativa.com
** Copyright (C) Declarativa, Portugal, 2000-2002
** Use and distribution, without any warranties, under the terms of the 
** GNU Library General Public License, readable in http://www.fsf.org/copyleft/lgpl.html
*/

package com.declarativa.interprolog.util;
import java.io.*;
public class BasicTypeWrapper implements Serializable{
        public Object wrapper; // a (serializable...) basic type wrapper
        public Class basicTypeClass(){
                if (wrapper instanceof Boolean) return Boolean.TYPE;
                if (wrapper instanceof Character) return Character.TYPE;
                if (wrapper instanceof Byte) return Byte.TYPE;
                if (wrapper instanceof Double) return Double.TYPE;
                if (wrapper instanceof Float) return Float.TYPE;
                if (wrapper instanceof Integer) return Integer.TYPE;
                if (wrapper instanceof Long) return Long.TYPE;
                if (wrapper instanceof Short) return Short.TYPE;
                throw new RuntimeException("Bad BasicTypeWrapper:"+wrapper);
        }
        public BasicTypeWrapper(Object w){
                wrapper=w;
        }
        public String toString(){return "BasicTypeWrapper:"+wrapper.toString();}
        
        public static boolean instanceOfWrapper(Object x){
                if (x instanceof Boolean) return true;
                else if (x instanceof Character) return true;
                else if (x instanceof Byte) return true;
                else if (x instanceof Double) return true;
                else if (x instanceof Float) return true;
                else if (x instanceof Integer) return true;
                else if (x instanceof Long) return true;
                else if (x instanceof Short) return true;
                else return false;
        }
}

---