HBASE-14676 HBaseTestCase clean out: Purge Incommon Interface and Table and Region implementations: ADDENDUM -- forgot to add file
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/**
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package org.apache.hadoop.hbase.regionserver;
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import java.io.IOException;
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import java.util.ArrayList;
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import java.util.Iterator;
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import java.util.List;
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import java.util.Map;
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import org.apache.hadoop.conf.Configuration;
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import org.apache.hadoop.hbase.Cell;
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import org.apache.hadoop.hbase.HConstants;
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import org.apache.hadoop.hbase.HTableDescriptor;
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import org.apache.hadoop.hbase.TableName;
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import org.apache.hadoop.hbase.client.Append;
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import org.apache.hadoop.hbase.client.Delete;
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import org.apache.hadoop.hbase.client.Durability;
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import org.apache.hadoop.hbase.client.Get;
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import org.apache.hadoop.hbase.client.Increment;
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import org.apache.hadoop.hbase.client.Put;
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import org.apache.hadoop.hbase.client.Result;
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import org.apache.hadoop.hbase.client.ResultScanner;
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import org.apache.hadoop.hbase.client.Row;
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import org.apache.hadoop.hbase.client.RowMutations;
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import org.apache.hadoop.hbase.client.Scan;
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import org.apache.hadoop.hbase.client.Table;
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import org.apache.hadoop.hbase.client.coprocessor.Batch.Call;
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import org.apache.hadoop.hbase.client.coprocessor.Batch.Callback;
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import org.apache.hadoop.hbase.filter.CompareFilter.CompareOp;
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import org.apache.hadoop.hbase.ipc.CoprocessorRpcChannel;
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import com.google.protobuf.Descriptors.MethodDescriptor;
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import com.google.protobuf.Message;
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import com.google.protobuf.Service;
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import com.google.protobuf.ServiceException;
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/**
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* An implementation of {@link Table} that sits directly on a Region; it decorates the passed in
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* Region instance with the Table API. Some API is not implemented yet (throws
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* {@link UnsupportedOperationException}) mostly because no need as yet or it necessitates copying
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* a load of code local from RegionServer.
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*
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* <p>Use as an instance of a {@link Table} in-the-small -- no networking or servers
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* necessary -- or to write a test that can run directly against the datastore and then
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* over the network.
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*/
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public class RegionAsTable implements Table {
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private final Region region;
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/**
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* @param region Region to decorate with Table API.
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*/
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public RegionAsTable(final Region region) {
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this.region = region;
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}
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@Override
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public TableName getName() {
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return this.region.getTableDesc().getTableName();
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}
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@Override
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public Configuration getConfiguration() {
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throw new UnsupportedOperationException();
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}
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@Override
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public HTableDescriptor getTableDescriptor() throws IOException {
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return this.region.getTableDesc();
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}
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@Override
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public boolean exists(Get get) throws IOException {
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if (!get.isCheckExistenceOnly()) throw new IllegalArgumentException();
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return get(get) != null;
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}
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@Override
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public boolean[] existsAll(List<Get> gets) throws IOException {
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boolean [] results = new boolean[gets.size()];
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int index = 0;
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for (Get get: gets) {
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results[index++] = exists(get);
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}
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return results;
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}
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@Override
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public void batch(List<? extends Row> actions, Object[] results)
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throws IOException, InterruptedException {
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throw new UnsupportedOperationException();
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}
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@Override
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public <R> void batchCallback(List<? extends Row> actions, Object[] results,
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Callback<R> callback)
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throws IOException, InterruptedException {
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throw new UnsupportedOperationException();
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}
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@Override
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public Result get(Get get) throws IOException {
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return this.region.get(get);
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}
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@Override
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public Result[] get(List<Get> gets) throws IOException {
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Result [] results = new Result[gets.size()];
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int index = 0;
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for (Get get: gets) {
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results[index++] = get(get);
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}
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return results;
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}
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static class RegionScannerToResultScannerAdaptor implements ResultScanner {
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private static final Result [] EMPTY_RESULT_ARRAY = new Result[0];
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private final RegionScanner regionScanner;
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RegionScannerToResultScannerAdaptor(final RegionScanner regionScanner) {
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this.regionScanner = regionScanner;
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}
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@Override
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public Iterator<Result> iterator() {
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throw new UnsupportedOperationException();
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}
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@Override
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public Result next() throws IOException {
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List<Cell> cells = new ArrayList<Cell>();
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return regionScanner.next(cells)? Result.create(cells): null;
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}
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@Override
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public Result[] next(int nbRows) throws IOException {
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List<Result> results = new ArrayList<Result>(nbRows);
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for (int i = 0; i < nbRows; i++) {
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Result result = next();
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if (result == null) break;
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results.add(result);
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}
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return results.toArray(EMPTY_RESULT_ARRAY);
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}
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@Override
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public void close() {
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try {
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regionScanner.close();
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} catch (IOException e) {
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throw new RuntimeException(e);
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}
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}
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@Override
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public boolean renewLease() {
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throw new UnsupportedOperationException();
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}
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};
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@Override
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public ResultScanner getScanner(Scan scan) throws IOException {
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return new RegionScannerToResultScannerAdaptor(this.region.getScanner(scan));
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}
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@Override
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public ResultScanner getScanner(byte[] family) throws IOException {
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return getScanner(new Scan().addFamily(family));
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}
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@Override
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public ResultScanner getScanner(byte[] family, byte[] qualifier) throws IOException {
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return getScanner(new Scan().addColumn(family, qualifier));
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}
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@Override
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public void put(Put put) throws IOException {
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this.region.put(put);
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}
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@Override
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public void put(List<Put> puts) throws IOException {
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for (Put put: puts) put(put);
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}
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@Override
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public boolean checkAndPut(byte[] row, byte[] family, byte[] qualifier, byte[] value, Put put)
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throws IOException {
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throw new UnsupportedOperationException();
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}
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@Override
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public boolean checkAndPut(byte[] row, byte[] family, byte[] qualifier, CompareOp compareOp,
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byte[] value, Put put)
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throws IOException {
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throw new UnsupportedOperationException();
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}
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@Override
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public void delete(Delete delete) throws IOException {
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this.region.delete(delete);
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}
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@Override
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public void delete(List<Delete> deletes) throws IOException {
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for(Delete delete: deletes) delete(delete);
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}
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@Override
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public boolean checkAndDelete(byte[] row, byte[] family, byte[] qualifier, byte[] value,
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Delete delete)
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throws IOException {
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throw new UnsupportedOperationException();
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}
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@Override
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public boolean checkAndDelete(byte[] row, byte[] family, byte[] qualifier,
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CompareOp compareOp, byte[] value, Delete delete)
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throws IOException {
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throw new UnsupportedOperationException();
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}
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@Override
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public void mutateRow(RowMutations rm) throws IOException {
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throw new UnsupportedOperationException();
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}
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@Override
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public Result append(Append append) throws IOException {
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return this.region.append(append, HConstants.NO_NONCE, HConstants.NO_NONCE);
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}
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@Override
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public Result increment(Increment increment) throws IOException {
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return this.region.increment(increment, HConstants.NO_NONCE, HConstants.NO_NONCE);
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}
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@Override
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public long incrementColumnValue(byte[] row, byte[] family, byte[] qualifier, long amount)
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throws IOException {
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throw new UnsupportedOperationException();
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}
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@Override
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public long incrementColumnValue(byte[] row, byte[] family, byte[] qualifier, long amount,
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Durability durability)
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throws IOException {
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throw new UnsupportedOperationException();
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}
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/**
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* This call will NOT close the underlying region.
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*/
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@Override
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public void close() throws IOException {
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}
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@Override
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public CoprocessorRpcChannel coprocessorService(byte[] row) {
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throw new UnsupportedOperationException();
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}
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@Override
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public <T extends Service, R> Map<byte[], R> coprocessorService(Class<T> service, byte[] startKey,
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byte[] endKey, Call<T, R> callable)
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throws ServiceException, Throwable {
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throw new UnsupportedOperationException();
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}
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@Override
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public <T extends Service, R> void coprocessorService(Class<T> service, byte[] startKey,
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byte[] endKey, Call<T, R> callable, Callback<R> callback)
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throws ServiceException, Throwable {
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throw new UnsupportedOperationException();
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}
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@Override
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public long getWriteBufferSize() {
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throw new UnsupportedOperationException();
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}
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@Override
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public void setWriteBufferSize(long writeBufferSize) throws IOException {
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throw new UnsupportedOperationException();
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}
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@Override
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public <R extends Message> Map<byte[], R> batchCoprocessorService(MethodDescriptor
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methodDescriptor, Message request,
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byte[] startKey, byte[] endKey, R responsePrototype)
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throws ServiceException, Throwable {
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throw new UnsupportedOperationException();
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}
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@Override
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public <R extends Message> void batchCoprocessorService(MethodDescriptor methodDescriptor,
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Message request, byte[] startKey, byte[] endKey, R responsePrototype, Callback<R> callback)
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throws ServiceException, Throwable {
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throw new UnsupportedOperationException();
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}
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@Override
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public boolean checkAndMutate(byte[] row, byte[] family, byte[] qualifier, CompareOp compareOp,
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byte[] value, RowMutations mutation)
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throws IOException {
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throw new UnsupportedOperationException();
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}
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}
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