spring-data-jpa ReflectionRevisionEntityInformation 源码
spring-data-jpa ReflectionRevisionEntityInformation 代码
文件路径：/spring-data-envers/src/main/java/org/springframework/data/envers/repository/support/ReflectionRevisionEntityInformation.java
/*
* Copyright 2012-2022 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.data.envers.repository.support;
import org.hibernate.envers.RevisionNumber;
import org.springframework.data.repository.history.support.RevisionEntityInformation;
import org.springframework.data.util.AnnotationDetectionFieldCallback;
import org.springframework.util.Assert;
import org.springframework.util.ReflectionUtils;
/**
* {@link RevisionEntityInformation} that uses reflection to inspect a property annotated with {@link RevisionNumber} to
* find out about the revision number type.
*
* @author Oliver Gierke
*/
public class ReflectionRevisionEntityInformation implements RevisionEntityInformation {
private final Class<?> revisionEntityClass;
private final Class<?> revisionNumberType;
/**
* Creates a new {@link ReflectionRevisionEntityInformation} inspecting the given revision entity class.
*
* @param revisionEntityClass must not be {@literal null}.
*/
public ReflectionRevisionEntityInformation(Class<?> revisionEntityClass) {
Assert.notNull(revisionEntityClass, "Revision entity type must not be null");
AnnotationDetectionFieldCallback fieldCallback = new AnnotationDetectionFieldCallback(RevisionNumber.class);
ReflectionUtils.doWithFields(revisionEntityClass, fieldCallback);
this.revisionNumberType = fieldCallback.getRequiredType();
this.revisionEntityClass = revisionEntityClass;
}
public boolean isDefaultRevisionEntity() {
return false;
}
public Class<?> getRevisionEntityClass() {
return this.revisionEntityClass;
}
public Class<?> getRevisionNumberType() {
return this.revisionNumberType;
}
}
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spring-data-jpa DefaultRevisionEntityInformation 源码
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