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ReadCommittedScope.java
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ReadCommittedScope.java
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/*
* 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.carbondata.core.readcommitter;
import java.io.IOException;
import java.io.Serializable;
import java.util.Map;
import org.apache.carbondata.common.annotations.InterfaceAudience;
import org.apache.carbondata.common.annotations.InterfaceStability;
import org.apache.carbondata.core.datamap.Segment;
import org.apache.carbondata.core.mutate.UpdateVO;
import org.apache.carbondata.core.statusmanager.LoadMetadataDetails;
import org.apache.carbondata.core.statusmanager.SegmentRefreshInfo;
import org.apache.hadoop.conf.Configuration;
/**
* ReadCommitted interface that defines a read scope.
*/
@InterfaceAudience.Internal
@InterfaceStability.Stable public interface ReadCommittedScope extends Serializable {
LoadMetadataDetails[] getSegmentList() throws IOException;
/**
* @param segment
* @return map of Absolute path of index file as key and null as value -- without mergeIndex
* map of AbsolutePath with fileName of MergeIndex parent file as key and mergeIndexFileName
* as value -- with mergeIndex
* @throws IOException
*/
Map<String, String> getCommittedIndexFile(Segment segment) throws IOException;
SegmentRefreshInfo getCommittedSegmentRefreshInfo(Segment segment, UpdateVO updateVo)
throws IOException;
void takeCarbonIndexFileSnapShot() throws IOException;
Configuration getConfiguration();
void setConfiguration(Configuration configuration);
/**
* get table path if ReadCommittedScope is TableStatusReadCommittedScope
* get file path if ReadCommittedScope is LatestFilesReadCommittedScope
*
* @return
*/
String getFilePath();
}