| // 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. |
| |
| using System; |
| using System.Collections.Generic; |
| |
| namespace Apache.Arrow.Types |
| { |
| public abstract class NestedType : ArrowType |
| { |
| [Obsolete("Use `Fields` instead")] |
| public IReadOnlyList<Field> Children => Fields; |
| |
| public IReadOnlyList<Field> Fields { get; } |
| |
| protected NestedType(IReadOnlyList<Field> fields) |
| { |
| if (fields == null || fields.Count == 0) |
| { |
| throw new ArgumentNullException(nameof(fields)); |
| } |
| Fields = fields; |
| } |
| |
| protected NestedType(Field field) |
| { |
| if (field == null) |
| { |
| throw new ArgumentNullException(nameof(field)); |
| } |
| Fields = new Field[] { field }; |
| } |
| } |
| } |