1 /* 2 * Copyright (C) 2011 The Guava Authors 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except 5 * in compliance with the License. You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software distributed under the License 10 * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express 11 * or implied. See the License for the specific language governing permissions and limitations under 12 * the License. 13 */ 14 15 package com.google.common.collect; 16 17 import com.google.common.annotations.Beta; 18 import com.google.common.annotations.GwtCompatible; 19 20 /** 21 * Indicates whether an endpoint of some range is contained in the range itself ("closed") or not 22 * ("open"). If a range is unbounded on a side, it is neither open nor closed on that side; the 23 * bound simply does not exist. 24 * 25 * @since 10.0 26 */ 27 @Beta 28 @GwtCompatible 29 public enum BoundType { 30 /** 31 * The endpoint value <i>is not</i> considered part of the set ("exclusive"). 32 */ 33 OPEN, 34 35 /** 36 * The endpoint value <i>is</i> considered part of the set ("inclusive"). 37 */ 38 CLOSED; 39 40 /** 41 * Returns the bound type corresponding to a boolean value for inclusivity. 42 */ forBoolean(boolean inclusive)43 static BoundType forBoolean(boolean inclusive) { 44 return inclusive ? CLOSED : OPEN; 45 } 46 } 47