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package com.sun.tools.internal.xjc.model;

import com.sun.codemodel.internal.JCodeModel;
import com.sun.codemodel.internal.JType;

Symbol space for ID/IDREF.
In XJC, the whole ID space is considered to be splitted into
one or more "symbol space". For an IDREF to match an ID, we impose
additional restriction to the one stated in the XML rec.

That is, XJC'll require that the IDREF belongs to the same symbol
space as the ID. Having this concept allows us to assign more
specific type to IDREF.

See the design document for detail.
Author:

   Kohsuke KAWAGUCHI/**
 * Symbol space for ID/IDREF.
 *
 * In XJC, the whole ID space is considered to be splitted into
 * one or more "symbol space". For an IDREF to match an ID, we impose
 * additional restriction to the one stated in the XML rec.
 *
 * <p>
 * That is, XJC'll require that the IDREF belongs to the same symbol
 * space as the ID. Having this concept allows us to assign more
 * specific type to IDREF.
 *
 * <p>
 * See the design document for detail.
 *
 * @author
 *    <a href="mailto:kohsuke.kawaguchi@sun.com">Kohsuke KAWAGUCHI</a>
 */
public class SymbolSpace
{
    private JType type;
    private final JCodeModel codeModel;

    public SymbolSpace( JCodeModel _codeModel ) {
        this.codeModel = _codeModel;
    }

    
Gets the Java type of this symbol space.

A symbol space is said to have a Java type X if all classes
pointed by IDs belonging to this symbol space are assignable
to X.
/**
     * Gets the Java type of this symbol space.
     *
     * <p>
     * A symbol space is said to have a Java type X if all classes
     * pointed by IDs belonging to this symbol space are assignable
     * to X.
     */
    public JType getType() {
        if(type==null)  return codeModel.ref(Object.class);
        return type;
    }

    public void setType( JType _type ) {
        if( this.type==null )
            this.type = _type;
    }

    public String toString() {
        if(type==null)  return "undetermined";
        else            return type.name();
    }
}