1/*
2 * Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.  Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26package com.sun.xml.internal.xsom.impl;
27
28import com.sun.xml.internal.xsom.XSAttGroupDecl;
29import com.sun.xml.internal.xsom.XSAttributeDecl;
30import com.sun.xml.internal.xsom.XSComplexType;
31import com.sun.xml.internal.xsom.XSContentType;
32import com.sun.xml.internal.xsom.XSElementDecl;
33import com.sun.xml.internal.xsom.XSIdentityConstraint;
34import com.sun.xml.internal.xsom.XSSimpleType;
35import com.sun.xml.internal.xsom.XSTerm;
36import com.sun.xml.internal.xsom.XSType;
37
38/**
39 * Reference to other schema components.
40 *
41 * <p>
42 * There are mainly two different types of references. One is
43 * the direct reference, which is only possible when schema components
44 * are already available when references are made.
45 * The other is the lazy reference, which keeps references by names
46 * and later look for the component by name.
47 *
48 * <p>
49 * This class defines interfaces that define the behavior of such
50 * references and classes that implement direct reference semantics.
51 *
52 * @author Kohsuke Kawaguchi (kohsuke.kawaguchi@sun.com)
53 */
54public abstract class Ref {
55
56    public static interface Term {
57        /** Obtains a reference as a term. */
58        XSTerm getTerm();
59    }
60
61    public static interface Type {
62        /** Obtains a reference as a type. */
63        XSType getType();
64    }
65
66    public static interface ContentType {
67        XSContentType getContentType();
68    }
69
70    public static interface SimpleType extends Ref.Type {
71        public XSSimpleType getType();
72    }
73
74    public static interface ComplexType extends Ref.Type {
75        public XSComplexType getType();
76    }
77
78    public static interface Attribute {
79        XSAttributeDecl getAttribute();
80    }
81
82    public static interface AttGroup {
83        XSAttGroupDecl get();
84    }
85
86    public static interface Element extends Term {
87        XSElementDecl get();
88    }
89
90    public static interface IdentityConstraint {
91        XSIdentityConstraint get();
92    }
93//
94//
95//    private static void _assert( boolean b ) {
96//        if(!b)
97//            throw new InternalError("assertion failed");
98//    }
99}
100