| /* |
| * Copyright (c) 1997, 2010, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| package com.sun.xml.internal.xsom.util; |
| |
| import com.sun.xml.internal.xsom.XSType; |
| |
| /** |
| * Perform a transitive closure operation on a type to determine if it |
| * belongs to this set. |
| * |
| * The contains method returns true if the TypeSet contains an instance |
| * of the specified XSType or any of the base types of the XSType. |
| * |
| * @author <a href="mailto:Ryan.Shoemaker@Sun.COM">Ryan Shoemaker</a>, Sun Microsystems, Inc. |
| */ |
| public class TypeClosure extends TypeSet { |
| |
| private final TypeSet typeSet; |
| |
| public TypeClosure(TypeSet typeSet) { |
| this.typeSet = typeSet; |
| } |
| |
| /* (non-Javadoc) |
| * @see com.sun.xml.internal.xsom.util.TypeSet#contains(com.sun.xml.internal.xsom.XSDeclaration) |
| * |
| * transitive closure variation on the contains method. |
| */ |
| public boolean contains(XSType type) { |
| if( typeSet.contains(type) ) { |
| return true; |
| } else { |
| XSType baseType = type.getBaseType(); |
| if( baseType == null ) { |
| return false; |
| } else { |
| // climb the super type hierarchy |
| return contains(baseType); |
| } |
| } |
| } |
| |
| } |