org.apache.pinot.broker.routing.segmentpreselector.SegmentPreSelector Maven / Gradle / Ivy
/**
* 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.pinot.broker.routing.segmentpreselector;
import java.util.Set;
/**
* The segment pre-selector filters the unnecessary online segments for the query.
* Segment pre-selector examples:
*
* -
* For table with segment merge/rollup enabled, select the merged segments over the original segments with the same
* data
*
*
*/
public interface SegmentPreSelector {
/**
* Pre-selects the online segments to filter out the unnecessary segments. This method might modify the online segment
* set passed in.
*/
Set preSelect(Set onlineSegments);
}