| /** |
| * 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.hadoop.hbase.regionserver.querymatcher; |
| |
| import java.io.IOException; |
| |
| import org.apache.hadoop.hbase.Cell; |
| import org.apache.hadoop.hbase.classification.InterfaceAudience; |
| import org.apache.hadoop.hbase.client.Scan; |
| import org.apache.hadoop.hbase.regionserver.ScanInfo; |
| |
| /** |
| * Query matcher for raw scan. |
| */ |
| @InterfaceAudience.Private |
| public class RawScanQueryMatcher extends UserScanQueryMatcher { |
| |
| protected RawScanQueryMatcher(Scan scan, ScanInfo scanInfo, ColumnTracker columns, |
| boolean hasNullColumn, long oldestUnexpiredTS, long now) { |
| super(scan, scanInfo, columns, hasNullColumn, oldestUnexpiredTS, now); |
| } |
| |
| @Override |
| public MatchCode match(Cell cell) throws IOException { |
| if (filter != null && filter.filterAllRemaining()) { |
| return MatchCode.DONE_SCAN; |
| } |
| MatchCode returnCode = preCheck(cell); |
| if (returnCode != null) { |
| return returnCode; |
| } |
| // For a raw scan, we do not filter out any cells by delete marker, and delete marker is also |
| // returned, so we do not need to track delete. |
| return matchColumn(cell); |
| } |
| |
| @Override |
| protected void reset() { |
| } |
| |
| @Override |
| protected boolean isGet() { |
| return false; |
| } |
| |
| public static RawScanQueryMatcher create(Scan scan, ScanInfo scanInfo, ColumnTracker columns, |
| boolean hasNullColumn, long oldestUnexpiredTS, long now) { |
| if (scan.isReversed()) { |
| return new RawScanQueryMatcher(scan, scanInfo, columns, hasNullColumn, oldestUnexpiredTS, |
| now) { |
| |
| @Override |
| protected boolean moreRowsMayExistsAfter(int cmpToStopRow) { |
| return cmpToStopRow > 0; |
| } |
| }; |
| } else { |
| return new RawScanQueryMatcher(scan, scanInfo, columns, hasNullColumn, oldestUnexpiredTS, |
| now); |
| } |
| } |
| } |