spring-graphql ClientResponseField 源码
spring-graphql ClientResponseField 代码
文件路径：/spring-graphql/src/main/java/org/springframework/graphql/client/ClientResponseField.java
/*
* Copyright 2002-2022 the original author or authors.
*
* 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
*
* https://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.springframework.graphql.client;
import java.util.List;
import org.springframework.core.ParameterizedTypeReference;
import org.springframework.graphql.ResponseField;
/**
* Extends {@link ResponseField} to add options for decoding the field value.
*
* @author Rossen Stoyanchev
* @since 1.0.0
*/
public interface ClientResponseField extends ResponseField {
/**
* Decode the field to an entity of the given type.
* @param entityType the type to convert to
* @return the decoded entity, never {@code null}
* @throws FieldAccessException if the target field is not present or
* has no value, checked via {@link #hasValue()}.
*/
<D> D toEntity(Class<D> entityType);
/**
* Variant of {@link #toEntity(Class)} with a {@link ParameterizedTypeReference}.
*/
<D> D toEntity(ParameterizedTypeReference<D> entityType);
/**
* Decode the field to a list of entities with the given type.
* @param elementType the type of elements in the list
* @return the decoded list of entities, possibly empty
* @throws FieldAccessException if the target field is not present or
* has no value, checked via {@link #hasValue()}.
*/
<D> List<D> toEntityList(Class<D> elementType);
/**
* Variant of {@link #toEntityList(Class)} with {@link ParameterizedTypeReference}.
*/
<D> List<D> toEntityList(ParameterizedTypeReference<D> elementType);
}
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