com.hazelcast.shaded.org.apache.calcite.util.NameSet Maven / Gradle / Ivy
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to you under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
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package com.hazelcast.shaded.org.apache.calcite.util;
import com.hazelcast.shaded.com.google.common.collect.Maps;
import com.hazelcast.shaded.org.checkerframework.checker.nullness.qual.Nullable;
import java.util.Collection;
import java.util.Collections;
import java.util.Comparator;
import java.util.Set;
/** Set of names that can be accessed with and without case sensitivity. */
public class NameSet {
public static final Comparator COMPARATOR = CaseInsensitiveComparator.COMPARATOR;
private static final Object DUMMY = new Object();
private final NameMap
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