aoqi@0: /*
aoqi@0:  * Copyright (c) 1997, 2011, Oracle and/or its affiliates. All rights reserved.
aoqi@0:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
aoqi@0:  *
aoqi@0:  * This code is free software; you can redistribute it and/or modify it
aoqi@0:  * under the terms of the GNU General Public License version 2 only, as
aoqi@0:  * published by the Free Software Foundation.  Oracle designates this
aoqi@0:  * particular file as subject to the "Classpath" exception as provided
aoqi@0:  * by Oracle in the LICENSE file that accompanied this code.
aoqi@0:  *
aoqi@0:  * This code is distributed in the hope that it will be useful, but WITHOUT
aoqi@0:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
aoqi@0:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
aoqi@0:  * version 2 for more details (a copy is included in the LICENSE file that
aoqi@0:  * accompanied this code).
aoqi@0:  *
aoqi@0:  * You should have received a copy of the GNU General Public License version
aoqi@0:  * 2 along with this work; if not, write to the Free Software Foundation,
aoqi@0:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
aoqi@0:  *
aoqi@0:  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
aoqi@0:  * or visit www.oracle.com if you need additional information or have any
aoqi@0:  * questions.
aoqi@0:  */
aoqi@0: 
aoqi@0: package com.sun.tools.internal.xjc.model;
aoqi@0: 
aoqi@0: import com.sun.codemodel.internal.JCodeModel;
aoqi@0: import com.sun.codemodel.internal.JType;
aoqi@0: 
aoqi@0: /**
aoqi@0:  * Symbol space for ID/IDREF.
aoqi@0:  *
aoqi@0:  * In XJC, the whole ID space is considered to be splitted into
aoqi@0:  * one or more "symbol space". For an IDREF to match an ID, we impose
aoqi@0:  * additional restriction to the one stated in the XML rec.
aoqi@0:  *
aoqi@0:  * <p>
aoqi@0:  * That is, XJC'll require that the IDREF belongs to the same symbol
aoqi@0:  * space as the ID. Having this concept allows us to assign more
aoqi@0:  * specific type to IDREF.
aoqi@0:  *
aoqi@0:  * <p>
aoqi@0:  * See the design document for detail.
aoqi@0:  *
aoqi@0:  * @author
aoqi@0:  *    <a href="mailto:kohsuke.kawaguchi@sun.com">Kohsuke KAWAGUCHI</a>
aoqi@0:  */
aoqi@0: public class SymbolSpace
aoqi@0: {
aoqi@0:     private JType type;
aoqi@0:     private final JCodeModel codeModel;
aoqi@0: 
aoqi@0:     public SymbolSpace( JCodeModel _codeModel ) {
aoqi@0:         this.codeModel = _codeModel;
aoqi@0:     }
aoqi@0: 
aoqi@0:     /**
aoqi@0:      * Gets the Java type of this symbol space.
aoqi@0:      *
aoqi@0:      * <p>
aoqi@0:      * A symbol space is said to have a Java type X if all classes
aoqi@0:      * pointed by IDs belonging to this symbol space are assignable
aoqi@0:      * to X.
aoqi@0:      */
aoqi@0:     public JType getType() {
aoqi@0:         if(type==null)  return codeModel.ref(Object.class);
aoqi@0:         return type;
aoqi@0:     }
aoqi@0: 
aoqi@0:     public void setType( JType _type ) {
aoqi@0:         if( this.type==null )
aoqi@0:             this.type = _type;
aoqi@0:     }
aoqi@0: 
aoqi@0:     public String toString() {
aoqi@0:         if(type==null)  return "undetermined";
aoqi@0:         else            return type.name();
aoqi@0:     }
aoqi@0: }