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// Licensed to the Apache Software Foundation (ASF) under one
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// distributed with this work for additional information
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// 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
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package org.apache.kudu.client;

import com.google.common.base.Preconditions;
import org.apache.yetus.audience.InterfaceAudience;

@InterfaceAudience.Private
public class BeginTransactionResponse extends KuduRpcResponse {
  private final long txnId;
  private final int keepaliveMillis;

  /**
   * @param elapsedMillis time in milliseconds since RPC creation to now
   * @param serverUUID UUID of the server that sent the response
   * @param txnId identifier of the new transaction
   * @param keepaliveMillis keepalive interval for the newly started transaction
   */
  BeginTransactionResponse(
      long elapsedMillis, String serverUUID, long txnId, int keepaliveMillis) {
    super(elapsedMillis, serverUUID);
    Preconditions.checkArgument(txnId > AsyncKuduClient.INVALID_TXN_ID);
    Preconditions.checkArgument(keepaliveMillis >= 0);
    this.txnId = txnId;
    this.keepaliveMillis = keepaliveMillis;
  }

  /**
   * @return the identifier of the started transaction
   */
  public long txnId() {
    return txnId;
  }

  /**
   * @return the keepalive interval for the started transaction (milliseconds)
   */
  public int keepaliveMillis() {
    return keepaliveMillis;
  }
}




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