| /* |
| * Copyright (C) 2017 The Android Open Source Project |
| * |
| * Licensed 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 android.arch.persistence.room; |
| |
| import java.lang.annotation.ElementType; |
| import java.lang.annotation.Retention; |
| import java.lang.annotation.RetentionPolicy; |
| import java.lang.annotation.Target; |
| |
| /** |
| * Specifies additional type converters that Room can use. The TypeConverter is added to the scope |
| * of the element so if you put it on a class / interface, all methods / fields in that class will |
| * be able to use the converters. |
| * <ul> |
| * <li>If you put it on a {@link Database}, all Daos and Entities in that database will be able to |
| * use it. |
| * <li>If you put it on a {@link Dao}, all methods in the Dao will be able to use it. |
| * <li>If you put it on an {@link Entity}, all fields of the Entity will be able to use it. |
| * <li>If you put it on a POJO, all fields of the POJO will be able to use it. |
| * <li>If you put it on an {@link Entity} field, only that field will be able to use it. |
| * <li>If you put it on a {@link Dao} method, all parameters of the method will be able to use it. |
| * <li>If you put it on a {@link Dao} method parameter, just that field will be able to use it. |
| * </ul> |
| * @see TypeConverter |
| */ |
| @Target({ElementType.METHOD, ElementType.PARAMETER, ElementType.TYPE, ElementType.FIELD}) |
| @Retention(RetentionPolicy.CLASS) |
| public @interface TypeConverters { |
| /** |
| * The list of type converter classes. If converter methods are not static, Room will create |
| * an instance of these classes. |
| * |
| * @return The list of classes that contains the converter methods. |
| */ |
| Class<?>[] value(); |
| } |