code: /*
   * 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.skywalking.oap.server.core.storage.profiling.trace;
  
  import java.io.IOException;
  import java.util.List;
  
  import org.apache.skywalking.oap.server.core.profiling.trace.ProfileThreadSnapshotRecord;
  import org.apache.skywalking.oap.server.core.storage.DAO;
  
  /**
   * {@link ProfileThreadSnapshotRecord} database queries
   */
  public interface IProfileThreadSnapshotQueryDAO extends DAO {
  
      /**
       * search all profiled segment id list, need appoint taskId and snapshot sequence equals 0 sort by segment start time
       *
       * @return it represents the segments having profile snapshot data.
       */
      List<String> queryProfiledSegmentIdList(String taskId) throws IOException;
  
      /**
       * search snapshots min sequence
       * @return min sequence, return -1 if not found data
       */
      int queryMinSequence(String segmentId, long start, long end) throws IOException;
  
      /**
       * search snapshots max sequence
       * @return max sequence, return -1 if not found data
       */
      int queryMaxSequence(String segmentId, long start, long end) throws IOException;
  
      /**
       * search snapshots with sequence range
       * @param minSequence min sequence, include self
       * @param maxSequence max sequence, exclude self
       * @return snapshots
       */
      List<ProfileThreadSnapshotRecord> queryRecords(String segmentId, int minSequence, int maxSequence) throws IOException;
  
  }
  