spring JavaSerializationHint 源码
spring JavaSerializationHint 代码
文件路径：/spring-core/src/main/java/org/springframework/aot/hint/JavaSerializationHint.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.aot.hint;
import java.io.Serializable;
import java.util.Objects;
import org.springframework.lang.Nullable;
/**
* A hint that describes the need for Java serialization at runtime.
*
* @author Brian Clozel
* @since 6.0
*/
public class JavaSerializationHint implements ConditionalHint {
private final TypeReference type;
@Nullable
private final TypeReference reachableType;
JavaSerializationHint(Builder builder) {
this.type = builder.type;
this.reachableType = builder.reachableType;
}
/**
* Return the {@link TypeReference type} that needs to be serialized using
* Java serialization at runtime.
* @return a {@link Serializable} type
*/
public TypeReference getType() {
return this.type;
}
@Override
@Nullable
public TypeReference getReachableType() {
return this.reachableType;
}
@Override
public boolean equals(Object o) {
if (this == o) {
return true;
}
if (o == null || getClass() != o.getClass()) {
return false;
}
JavaSerializationHint that = (JavaSerializationHint) o;
return this.type.equals(that.type)
&& Objects.equals(this.reachableType, that.reachableType);
}
@Override
public int hashCode() {
return Objects.hash(this.type, this.reachableType);
}
/**
* Builder for {@link JavaSerializationHint}.
*/
public static class Builder {
private final TypeReference type;
@Nullable
private TypeReference reachableType;
Builder(TypeReference type) {
this.type = type;
}
/**
* Make this hint conditional on the fact that the specified type
* can be resolved.
* @param reachableType the type that should be reachable for this
* hint to apply
* @return {@code this}, to facilitate method chaining
*/
public Builder onReachableType(TypeReference reachableType) {
this.reachableType = reachableType;
return this;
}
/**
* Create a {@link JavaSerializationHint} based on the state of this builder.
* @return a java serialization hint
*/
JavaSerializationHint build() {
return new JavaSerializationHint(this);
}
}
}
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