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package com.wutka.dtd;
import java.io.*;
/** Represents any item in the DTD
*
* @author Mark Wutka
* @version $Revision: 1.16 $ $Date: 2002/07/19 01:20:11 $ by $Author: wutka $
*/
public abstract class DTDItem implements DTDOutput
{
/** Indicates how often the item may occur */
public DTDCardinal cardinal;
public DTDItem()
{
cardinal = DTDCardinal.NONE;
}
public DTDItem(DTDCardinal aCardinal)
{
cardinal = aCardinal;
}
/** Writes out a declaration for this item */
public abstract void write(PrintWriter out)
throws IOException;
public boolean equals(Object ob)
{
if (ob == this) return true;
if (!(ob instanceof DTDItem)) return false;
DTDItem other = (DTDItem) ob;
if (cardinal == null)
{
if (other.cardinal != null) return false;
}
else
{
if (!cardinal.equals(other.cardinal)) return false;
}
return true;
}
/** Sets the cardinality of the item */
public void setCardinal(DTDCardinal aCardinal)
{
cardinal = aCardinal;
}
/** Retrieves the cardinality of the item */
public DTDCardinal getCardinal()
{
return cardinal;
}
}
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