spring-data-elasticsearch JoinField 源码
spring-data-elasticsearch JoinField 代码
文件路径：/src/main/java/org/springframework/data/elasticsearch/core/join/JoinField.java
/*
* Copyright 2020-2022 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.core.join;
import java.util.Objects;
import org.springframework.data.annotation.PersistenceConstructor;
import org.springframework.lang.Nullable;
/**
* @author Subhobrata Dey
* @author Sascha Woo
* @since 4.1
*/
public class JoinField<ID> {
private final String name;
@Nullable private ID parent;
public JoinField() {
this("default", null);
}
public JoinField(String name) {
this(name, null);
}
@PersistenceConstructor
public JoinField(String name, @Nullable ID parent) {
this.name = name;
this.parent = parent;
}
public void setParent(@Nullable ID parent) {
this.parent = parent;
}
@Nullable
public ID getParent() {
return parent;
}
public String getName() {
return name;
}
@Override
public int hashCode() {
return Objects.hash(name, parent);
}
@Override
public boolean equals(Object obj) {
if (this == obj) {
return true;
}
if (!(obj instanceof JoinField<?> other)) {
return false;
}
return Objects.equals(name, other.name) && Objects.equals(parent, other.parent);
}
}
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