kafka CombinedKey 源码
kafka CombinedKey 代码
文件路径：/streams/src/main/java/org/apache/kafka/streams/kstream/internals/foreignkeyjoin/CombinedKey.java
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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
*
* http://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.apache.kafka.streams.kstream.internals.foreignkeyjoin;
import java.util.Objects;
public class CombinedKey<KF, KP> {
private final KF foreignKey;
private final KP primaryKey;
CombinedKey(final KF foreignKey, final KP primaryKey) {
Objects.requireNonNull(foreignKey, "foreignKey can't be null");
Objects.requireNonNull(primaryKey, "primaryKey can't be null");
this.foreignKey = foreignKey;
this.primaryKey = primaryKey;
}
public KF getForeignKey() {
return foreignKey;
}
public KP getPrimaryKey() {
return primaryKey;
}
@Override
public int hashCode() {
return Objects.hash(foreignKey, primaryKey);
}
@Override
public boolean equals(final Object o) {
if (this == o) {
return true;
}
if (o == null || getClass() != o.getClass()) {
return false;
}
final CombinedKey<?, ?> that = (CombinedKey<?, ?>) o;
return Objects.equals(foreignKey, that.foreignKey) && Objects.equals(
primaryKey, that.primaryKey);
}
@Override
public String toString() {
return "CombinedKey{" +
"foreignKey=" + foreignKey +
", primaryKey=" + primaryKey +
'}';
}
}
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