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package com.wutka.dtd;
import java.io.*;
/** Represents a DTD Attribute in an ATTLIST declaration
*
* @author Mark Wutka
* @version $Revision: 1.16 $ $Date: 2002/07/19 01:20:11 $ by $Author: wutka $
*/
public class DTDAttribute implements DTDOutput
{
/** The name of the attribute */
public String name;
/** The type of the attribute (either String, DTDEnumeration or
DTDNotationList) */
public Object type;
/** The attribute's declaration (required, fixed, implied) */
public DTDDecl decl;
/** The attribute's default value (null if not declared) */
public String defaultValue;
public DTDAttribute()
{
}
public DTDAttribute(String aName)
{
name = aName;
}
/** Writes this attribute to an output stream */
public void write(PrintWriter out)
throws IOException
{
out.print(name+" ");
if (type instanceof String)
{
out.print(type);
}
else if (type instanceof DTDEnumeration)
{
DTDEnumeration dtdEnum = (DTDEnumeration) type;
dtdEnum.write(out);
}
else if (type instanceof DTDNotationList)
{
DTDNotationList dtdnl = (DTDNotationList) type;
dtdnl.write(out);
}
if (decl != null)
{
decl.write(out);
}
if (defaultValue != null)
{
out.print(" \"");
out.print(defaultValue);
out.print("\"");
}
//out.println(">"); Bug!
}
public boolean equals(Object ob)
{
if (ob == this) return true;
if (!(ob instanceof DTDAttribute)) return false;
DTDAttribute other = (DTDAttribute) ob;
if (name == null)
{
if (other.name != null) return false;
}
else
{
if (!name.equals(other.name)) return false;
}
if (type == null)
{
if (other.type != null) return false;
}
else
{
if (!type.equals(other.type)) return false;
}
if (decl == null)
{
if (other.decl != null) return false;
}
else
{
if (!decl.equals(other.decl)) return false;
}
if (defaultValue == null)
{
if (other.defaultValue != null) return false;
}
else
{
if (!defaultValue.equals(other.defaultValue)) return false;
}
return true;
}
/** Sets the name of the attribute */
public void setName(String aName)
{
name = aName;
}
/** Returns the attribute name */
public String getName()
{
return name;
}
/** Sets the type of the attribute */
public void setType(Object aType)
{
if (!(aType instanceof String) &&
!(aType instanceof DTDEnumeration) &&
!(aType instanceof DTDNotationList))
{
throw new IllegalArgumentException(
"Must be String, DTDEnumeration or DTDNotationList");
}
type = aType;
}
/** Gets the type of the attribute */
public Object getType()
{
return type;
}
/** Sets the declaration (fixed, required, implied) */
public void setDecl(DTDDecl aDecl)
{
decl = aDecl;
}
/** Returns the declaration */
public DTDDecl getDecl()
{
return decl;
}
/** Sets the default value */
public void setDefaultValue(String aDefaultValue)
{
defaultValue = aDefaultValue;
}
/** Returns the default value */
public String getDefaultValue()
{
return defaultValue;
}
}
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