content: /*
   * 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.
   */
  package org.apache.calcite.linq4j;
  
  import org.apache.calcite.linq4j.function.Function1;
  import org.apache.calcite.linq4j.tree.Expression;
  import org.apache.calcite.linq4j.tree.FunctionExpression;
  
  import org.checkerframework.checker.nullness.qual.Nullable;
  
  import java.util.Comparator;
  
  /**
   * Implementation of {@link OrderedQueryable} by an
   * {@link org.apache.calcite.linq4j.Enumerable}.
   *
   * @param <T> Element type
   */
  class EnumerableOrderedQueryable<T> extends EnumerableQueryable<T>
      implements OrderedQueryable<T> {
    EnumerableOrderedQueryable(Enumerable<T> enumerable, Class<T> rowType,
        QueryProvider provider, @Nullable Expression expression) {
      super(provider, rowType, expression, enumerable);
    }
  
    @Override public <TKey extends Comparable<TKey>> OrderedQueryable<T> thenBy(
        FunctionExpression<Function1<T, TKey>> keySelector) {
      return QueryableDefaults.thenBy(asOrderedQueryable(), keySelector);
    }
  
    @Override public <TKey> OrderedQueryable<T> thenBy(
        FunctionExpression<Function1<T, TKey>> keySelector,
        Comparator<TKey> comparator) {
      return QueryableDefaults.thenBy(asOrderedQueryable(), keySelector,
          comparator);
    }
  
    @Override public <TKey extends Comparable<TKey>> OrderedQueryable<T> thenByDescending(
        FunctionExpression<Function1<T, TKey>> keySelector) {
      return QueryableDefaults.thenByDescending(asOrderedQueryable(),
          keySelector);
    }
  
    @Override public <TKey> OrderedQueryable<T> thenByDescending(
        FunctionExpression<Function1<T, TKey>> keySelector,
        Comparator<TKey> comparator) {
      return QueryableDefaults.thenByDescending(asOrderedQueryable(), keySelector,
          comparator);
    }
  }
  