tachyon.master.rawtable.journal.UpdateMetadataEntry Maven / Gradle / Ivy

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/*
 * Licensed to the University of California, Berkeley 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 tachyon.master.rawtable.journal;

import java.nio.ByteBuffer;
import java.util.Map;

import com.google.common.collect.Maps;

import tachyon.master.journal.JournalEntry;
import tachyon.master.journal.JournalEntryType;

/**
 * The JournalEntry to represent the update of metadata in RawTable.
 */
public class UpdateMetadataEntry implements JournalEntry {
  public final long mId;
  public final ByteBuffer mMetadata;

  /**
   * @param id table id
   * @param metadata the metadata to be set for the table
   */
  public UpdateMetadataEntry(long id, ByteBuffer metadata) {
    mId = id;
    mMetadata = metadata;
  }

  @Override
  public JournalEntryType getType() {
    return JournalEntryType.UPDATE_METADATA;
  }

  @Override
  public Map getParameters() {
    Map parameters = Maps.newHashMapWithExpectedSize(2);
    parameters.put("id", mId);
    parameters.put("metadata", mMetadata);
    return parameters;
  }
}