Thu, 31 Aug 2017 15:18:52 +0800
merge
aoqi@0 | 1 | /* |
aoqi@0 | 2 | * Copyright (c) 1997, 2010, Oracle and/or its affiliates. All rights reserved. |
aoqi@0 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
aoqi@0 | 4 | * |
aoqi@0 | 5 | * This code is free software; you can redistribute it and/or modify it |
aoqi@0 | 6 | * under the terms of the GNU General Public License version 2 only, as |
aoqi@0 | 7 | * published by the Free Software Foundation. Oracle designates this |
aoqi@0 | 8 | * particular file as subject to the "Classpath" exception as provided |
aoqi@0 | 9 | * by Oracle in the LICENSE file that accompanied this code. |
aoqi@0 | 10 | * |
aoqi@0 | 11 | * This code is distributed in the hope that it will be useful, but WITHOUT |
aoqi@0 | 12 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
aoqi@0 | 13 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
aoqi@0 | 14 | * version 2 for more details (a copy is included in the LICENSE file that |
aoqi@0 | 15 | * accompanied this code). |
aoqi@0 | 16 | * |
aoqi@0 | 17 | * You should have received a copy of the GNU General Public License version |
aoqi@0 | 18 | * 2 along with this work; if not, write to the Free Software Foundation, |
aoqi@0 | 19 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
aoqi@0 | 20 | * |
aoqi@0 | 21 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
aoqi@0 | 22 | * or visit www.oracle.com if you need additional information or have any |
aoqi@0 | 23 | * questions. |
aoqi@0 | 24 | */ |
aoqi@0 | 25 | |
aoqi@0 | 26 | package com.sun.xml.internal.xsom.util; |
aoqi@0 | 27 | |
aoqi@0 | 28 | import com.sun.xml.internal.xsom.XSType; |
aoqi@0 | 29 | |
aoqi@0 | 30 | /** |
aoqi@0 | 31 | * A simple abstraction for a set of Types that defines containment functions. |
aoqi@0 | 32 | * |
aoqi@0 | 33 | * @author <a href="mailto:Ryan.Shoemaker@Sun.COM">Ryan Shoemaker</a>, Sun Microsystems, Inc. |
aoqi@0 | 34 | */ |
aoqi@0 | 35 | public abstract class TypeSet { |
aoqi@0 | 36 | |
aoqi@0 | 37 | /** |
aoqi@0 | 38 | * Return true if this TypeSet contains the specified type. |
aoqi@0 | 39 | * |
aoqi@0 | 40 | * Concrete implementations of this method determine what it |
aoqi@0 | 41 | * means for the TypeSet to "contain" a type. |
aoqi@0 | 42 | * |
aoqi@0 | 43 | * @param type the type |
aoqi@0 | 44 | * @return true iff this TypeSet contains the specified type |
aoqi@0 | 45 | */ |
aoqi@0 | 46 | public abstract boolean contains(XSType type); |
aoqi@0 | 47 | |
aoqi@0 | 48 | /** |
aoqi@0 | 49 | * Calculate the TypeSet formed by the intersection of two |
aoqi@0 | 50 | * other TypeSet objects. |
aoqi@0 | 51 | * |
aoqi@0 | 52 | * @param a a TypeSet |
aoqi@0 | 53 | * @param b another TypeSet |
aoqi@0 | 54 | * @return the intersection of a and b |
aoqi@0 | 55 | */ |
aoqi@0 | 56 | public static TypeSet intersection(final TypeSet a, final TypeSet b) { |
aoqi@0 | 57 | return new TypeSet(){ |
aoqi@0 | 58 | public boolean contains(XSType type) { |
aoqi@0 | 59 | return a.contains(type) && b.contains(type); |
aoqi@0 | 60 | } |
aoqi@0 | 61 | }; |
aoqi@0 | 62 | } |
aoqi@0 | 63 | |
aoqi@0 | 64 | /** |
aoqi@0 | 65 | * Calculate the TypeSet formed by the union of two |
aoqi@0 | 66 | * other TypeSet objects. |
aoqi@0 | 67 | * |
aoqi@0 | 68 | * @param a a TypeSet |
aoqi@0 | 69 | * @param b another TypeSet |
aoqi@0 | 70 | * @return the union of a and b |
aoqi@0 | 71 | */ |
aoqi@0 | 72 | public static TypeSet union(final TypeSet a, final TypeSet b) { |
aoqi@0 | 73 | return new TypeSet(){ |
aoqi@0 | 74 | public boolean contains(XSType type) { |
aoqi@0 | 75 | return a.contains(type) || b.contains(type); |
aoqi@0 | 76 | } |
aoqi@0 | 77 | }; |
aoqi@0 | 78 | } |
aoqi@0 | 79 | } |