Github user ohadshacham commented on a diff in the pull request:
https://github.com/apache/incubator-omid/pull/16#discussion_r150794291
--- Diff:
hbase-coprocessor/src/main/java/org/apache/hadoop/hbase/regionserver/OmidRegionScanner.java
---
@@ -0,0 +1,128 @@
+/*
+ * 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;
+
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+import org.apache.hadoop.hbase.Cell;
+import org.apache.hadoop.hbase.HRegionInfo;
+import org.apache.hadoop.hbase.regionserver.RegionScanner;
+import org.apache.hadoop.hbase.regionserver.ScannerContext;
+import org.apache.omid.transaction.HBaseTransaction;
+import org.apache.omid.transaction.SnapshotFilter;
+
+public class OmidRegionScanner implements RegionScanner {
+
+ RegionScanner scanner;
+ SnapshotFilter snapshotFilter;
+ HBaseTransaction transaction;
+ int maxVersions;
+ Map<String, List<Cell>> familyDeletionCache;
+
+ public OmidRegionScanner(SnapshotFilter snapshotFilter,
+ RegionScanner s,
+ HBaseTransaction transaction,
+ int maxVersions) {
+ this.snapshotFilter = snapshotFilter;
+ this.scanner = s;
+ this.transaction = transaction;
+ this.maxVersions = maxVersions;
+ this.familyDeletionCache = new HashMap<String, List<Cell>>();
+ }
+
+ @Override
+ public boolean next(List<Cell> results) throws IOException {
+ return next(results, Integer.MAX_VALUE);
+ }
+
+ public boolean next(List<Cell> result, int limit) throws IOException {
--- End diff --
The function is defined in RegionScanner interface, we are just override it.
---
