| using Lucene.Net.Index; |
| |
| namespace Lucene.Net.Documents.Extensions |
| { |
| /* |
| * 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. |
| */ |
| |
| /// <summary> |
| /// Extension methods to the <see cref="IIndexableField"/> interface. |
| /// </summary> |
| public static class IndexableFieldExtensions |
| { |
| /// <summary> |
| /// Returns the field value as <see cref="byte"/> or <c>0</c> if the type |
| /// is non-numeric. |
| /// </summary> |
| /// <param name="field">This <see cref="IIndexableField"/>.</param> |
| /// <returns>The field value or <c>0</c> if the type is non-numeric.</returns> |
| public static byte GetByteValueOrDefault(this IIndexableField field) |
| { |
| if (field is null) return default; |
| return field.GetByteValue().GetValueOrDefault(); |
| } |
| |
| /// <summary> |
| /// Returns the field value as <see cref="short"/> or <c>0</c> if the type |
| /// is non-numeric. |
| /// </summary> |
| /// <param name="field">This <see cref="IIndexableField"/>.</param> |
| /// <returns>The field value or <c>0</c> if the type is non-numeric.</returns> |
| public static short GetInt16ValueOrDefault(this IIndexableField field) |
| { |
| if (field is null) return default; |
| return field.GetInt16Value().GetValueOrDefault(); |
| } |
| |
| /// <summary> |
| /// Returns the field value as <see cref="int"/> or <c>0</c> if the type |
| /// is non-numeric. |
| /// </summary> |
| /// <param name="field">This <see cref="IIndexableField"/>.</param> |
| /// <returns>The field value or <c>0</c> if the type is non-numeric.</returns> |
| public static int GetInt32ValueOrDefault(this IIndexableField field) |
| { |
| if (field is null) return default; |
| return field.GetInt32Value().GetValueOrDefault(); |
| } |
| |
| /// <summary> |
| /// Returns the field value as <see cref="long"/> or <c>0</c> if the type |
| /// is non-numeric. |
| /// </summary> |
| /// <param name="field">This <see cref="IIndexableField"/>.</param> |
| /// <returns>The field value or <c>0</c> if the type is non-numeric.</returns> |
| public static long GetInt64ValueOrDefault(this IIndexableField field) |
| { |
| if (field is null) return default; |
| return field.GetInt64Value().GetValueOrDefault(); |
| } |
| |
| /// <summary> |
| /// Returns the field value as <see cref="float"/> or <c>0</c> if the type |
| /// is non-numeric. |
| /// </summary> |
| /// <param name="field">This <see cref="IIndexableField"/>.</param> |
| /// <returns>The field value or <c>0</c> if the type is non-numeric.</returns> |
| public static float GetSingleValueOrDefault(this IIndexableField field) |
| { |
| if (field is null) return default; |
| return field.GetSingleValue().GetValueOrDefault(); |
| } |
| |
| /// <summary> |
| /// Returns the field value as <see cref="double"/> or <c>0</c> if the type |
| /// is non-numeric. |
| /// </summary> |
| /// <param name="field">This <see cref="IIndexableField"/>.</param> |
| /// <returns>The field value or <c>0</c> if the type is non-numeric.</returns> |
| public static double GetDoubleValueOrDefault(this IIndexableField field) |
| { |
| if (field is null) return default; |
| return field.GetDoubleValue().GetValueOrDefault(); |
| } |
| } |
| } |