spring-data-elasticsearch MappingElasticsearchEntityInformation 源码
spring-data-elasticsearch MappingElasticsearchEntityInformation 代码
文件路径：/src/main/java/org/springframework/data/elasticsearch/repository/support/MappingElasticsearchEntityInformation.java
/*
* Copyright 2013-2022 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.elasticsearch.repository.support;
import org.springframework.data.elasticsearch.annotations.Document;
import org.springframework.data.elasticsearch.core.mapping.ElasticsearchPersistentEntity;
import org.springframework.data.elasticsearch.core.mapping.ElasticsearchPersistentProperty;
import org.springframework.data.elasticsearch.core.mapping.IndexCoordinates;
import org.springframework.data.repository.core.support.PersistentEntityInformation;
/**
* Elasticsearch specific implementation of
* {@link org.springframework.data.repository.core.support.AbstractEntityInformation}
*
* @param <T>
* @param <ID>
* @author Rizwan Idrees
* @author Mohsin Husen
* @author Ryan Henszey
* @author Oliver Gierke
* @author Mark Paluch
* @author Christoph Strobl
* @author Ivan Greene
* @author Sylvain Laurent
* @author Peter-Josef Meisch
*/
public class MappingElasticsearchEntityInformation<T, ID> extends PersistentEntityInformation<T, ID>
implements ElasticsearchEntityInformation<T, ID> {
private final ElasticsearchPersistentEntity<T> persistentEntity;
public MappingElasticsearchEntityInformation(ElasticsearchPersistentEntity<T> persistentEntity) {
super(persistentEntity);
this.persistentEntity = persistentEntity;
}
@Override
public String getIdAttribute() {
return persistentEntity.getRequiredIdProperty().getFieldName();
}
@Override
public IndexCoordinates getIndexCoordinates() {
return persistentEntity.getIndexCoordinates();
}
@Override
public Long getVersion(T entity) {
ElasticsearchPersistentProperty versionProperty = persistentEntity.getVersionProperty();
try {
return versionProperty != null ? (Long) persistentEntity.getPropertyAccessor(entity).getProperty(versionProperty)
: null;
} catch (Exception e) {
throw new IllegalStateException("failed to load version field", e);
}
}
@Override
public Document.VersionType getVersionType() {
return persistentEntity.getVersionType();
}
}
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