1 /*
2  * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License").
5  * You may not use this file except in compliance with the License.
6  * A copy of the License is located at
7  *
8  *  http://aws.amazon.com/apache2.0
9  *
10  * or in the "license" file accompanying this file. This file is distributed
11  * on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
12  * express or implied. See the License for the specific language governing
13  * permissions and limitations under the License.
14  */
15 
16 package software.amazon.awssdk.enhanced.dynamodb;
17 
18 import software.amazon.awssdk.annotations.SdkPublicApi;
19 import software.amazon.awssdk.annotations.ThreadSafe;
20 import software.amazon.awssdk.enhanced.dynamodb.internal.converter.ConverterProviderResolver;
21 import software.amazon.awssdk.services.dynamodb.model.AttributeValue;
22 
23 /**
24  * Interface for determining the {@link AttributeConverter} to use for
25  * converting a given {@link EnhancedType}.
26  */
27 @SdkPublicApi
28 @ThreadSafe
29 public interface AttributeConverterProvider {
30 
31     /**
32      * Finds a {@link AttributeConverter} for converting an object with a type
33      * specified by a {@link EnhancedType} to a {@link AttributeValue} and back.
34      *
35      * @param enhancedType The type of the object to be converted
36      * @return {@link AttributeConverter} for converting the given type.
37      */
converterFor(EnhancedType<T> enhancedType)38     <T> AttributeConverter<T> converterFor(EnhancedType<T> enhancedType);
39 
40     /**
41      * Returns a default implementation of AttributeConverterProvider with all
42      * standard Java type converters included.
43      */
defaultProvider()44     static AttributeConverterProvider defaultProvider() {
45         return ConverterProviderResolver.defaultConverterProvider();
46     }
47 }
48