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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;
22  
23  import org.apache.hadoop.hbase.HTableDescriptor;
24  import org.apache.hadoop.hbase.hbql.client.ExecutionResults;
25  import org.apache.hadoop.hbase.hbql.client.HBqlException;
26  import org.apache.hadoop.hbase.hbql.impl.HConnectionImpl;
27  import org.apache.hadoop.hbase.hbql.mapping.FamilyDefinition;
28  
29  import java.util.List;
30  
31  public class CreateTableStatement extends GenericStatement implements ConnectionStatement {
32  
33      private final String                 tableName;
34      private final List<FamilyDefinition> familyList;
35  
36      public CreateTableStatement(final StatementPredicate predicate,
37                                  final String tableName,
38                                  final List<FamilyDefinition> familyList) {
39          super(predicate);
40          this.tableName = tableName;
41          this.familyList = familyList;
42      }
43  
44      protected ExecutionResults execute(final HConnectionImpl conn) throws HBqlException {
45  
46          final HTableDescriptor tableDesc = new HTableDescriptor(this.tableName);
47  
48          for (final FamilyDefinition familyDefintion : this.familyList)
49              tableDesc.addFamily(familyDefintion.getColumnDescription());
50  
51          conn.createTable(tableDesc);
52  
53          return new ExecutionResults("Table " + tableDesc.getNameAsString() + " created.");
54      }
55  
56      public static String usage() {
57          return "CREATE TABLE table_name (family_definition_list) [IF bool_expr]";
58      }
59  }