spring FieldHint 源码
spring FieldHint 代码
文件路径：/spring-core/src/main/java/org/springframework/aot/hint/FieldHint.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.lang.reflect.Field;
/**
* A hint that describes the need of reflection on a {@link Field}.
*
* @author Stephane Nicoll
* @since 6.0
*/
public final class FieldHint extends MemberHint {
private final boolean allowWrite;
private final boolean allowUnsafeAccess;
private FieldHint(Builder builder) {
super(builder.name);
this.allowWrite = builder.allowWrite;
this.allowUnsafeAccess = builder.allowUnsafeAccess;
}
/**
* Return whether setting the value of the field should be allowed.
* @return {@code true} to allow {@link Field#set(Object, Object)}.
*/
public boolean isAllowWrite() {
return this.allowWrite;
}
/**
* Return whether if using {@code Unsafe} on the field should be allowed.
* @return {@code true} to allow unsafe access
*/
public boolean isAllowUnsafeAccess() {
return this.allowUnsafeAccess;
}
/**
* Builder for {@link FieldHint}.
*/
public static class Builder {
private final String name;
private boolean allowWrite;
private boolean allowUnsafeAccess;
Builder(String name) {
this.name = name;
}
/**
* Specify if setting the value of the field should be allowed.
* @param allowWrite {@code true} to allow {@link Field#set(Object, Object)}
* @return {@code this}, to facilitate method chaining
*/
public Builder allowWrite(boolean allowWrite) {
this.allowWrite = allowWrite;
return this;
}
/**
* Specify if using {@code Unsafe} on the field should be allowed.
* @param allowUnsafeAccess {@code true} to allow unsafe access
* @return {@code this}, to facilitate method chaining
*/
public Builder allowUnsafeAccess(boolean allowUnsafeAccess) {
this.allowUnsafeAccess = allowUnsafeAccess;
return this;
}
/**
* Create a {@link FieldHint} based on the state of this builder.
* @return a field hint
*/
FieldHint build() {
return new FieldHint(this);
}
}
}
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