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1   /*
2    * Copyright (c) 2011.  The Apache Software Foundation
3    *
4    * Licensed to the Apache Software Foundation (ASF) under one
5    * or more contributor license agreements.  See the NOTICE file
6    * distributed with this work for additional information
7    * regarding copyright ownership.  The ASF licenses this file
8    * to you under the Apache License, Version 2.0 (the
9    * "License"); you may not use this file except in compliance
10   * with the License.  You may obtain a copy of the License at
11   *
12   *     http://www.apache.org/licenses/LICENSE-2.0
13   *
14   * Unless required by applicable law or agreed to in writing, software
15   * distributed under the License is distributed on an "AS IS" BASIS,
16   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
17   * See the License for the specific language governing permissions and
18   * limitations under the License.
19   */
20  
21  package org.apache.hadoop.hbase.hbql.statement.select;
22  
23  import org.apache.hadoop.hbase.client.HTableInterface;
24  import org.apache.hadoop.hbase.client.ResultScanner;
25  import org.apache.hadoop.hbase.client.Scan;
26  import org.apache.hadoop.hbase.hbql.client.HBqlException;
27  import org.apache.hadoop.hbase.hbql.mapping.Mapping;
28  import org.apache.hadoop.hbase.hbql.statement.args.WithArgs;
29  
30  import java.io.IOException;
31  
32  public class ScanRequest implements RowRequest {
33  
34      final Scan scanValue;
35  
36      public ScanRequest(final Scan scanValue) {
37          this.scanValue = scanValue;
38      }
39  
40      private Scan getScanValue() {
41          return this.scanValue;
42      }
43  
44      public ResultScanner getResultScanner(final Mapping mapping,
45                                            final WithArgs withArgs,
46                                            final HTableInterface table) throws HBqlException {
47          try {
48              return table.getScanner(this.getScanValue());
49          }
50          catch (IOException e) {
51              throw new HBqlException(e);
52          }
53      }
54  }