/**
 * 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.apex.malhar.lib.state.managed;

/**
 * This interface declares methods to get bucket by bucket id
 *
 *
 * @since 3.6.0
 */
public interface BucketProvider
{
  /**
   * get bucket by bucket id
   * @param bucketId
   * @return
   */
  public Bucket getBucket(long bucketId);

  /**
   * Create bucket if not exist, return the bucket
   * @param bucketId
   * @return
   */
  public Bucket ensureBucket(long bucketId);
}
