/*
 * 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.coordinator.transaction;

import org.apache.kafka.common.TopicPartition;
import org.apache.kafka.server.common.TransactionVersion;

import java.util.HashSet;

/**
 * Represent the target transition of the transaction metadata. The topicPartitions field is mutable.
 */
public record TxnTransitMetadata(
        long producerId,
        long prevProducerId,
        long nextProducerId,
        short producerEpoch,
        short lastProducerEpoch,
        int txnTimeoutMs,
        TransactionState txnState,
        // The TransactionMetadata#topicPartitions field is mutable.
        // To avoid deep copy when assigning value from TxnTransitMetadata to TransactionMetadata, use HashSet here.
        HashSet<TopicPartition> topicPartitions,
        long txnStartTimestamp,
        long txnLastUpdateTimestamp,
        TransactionVersion clientTransactionVersion
) { }
