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.expreval.expr.var;
22
23 import org.apache.expreval.client.NullColumnValueException;
24 import org.apache.expreval.client.ResultMissingColumnException;
25 import org.apache.expreval.expr.node.NumberValue;
26 import org.apache.hadoop.hbase.client.Result;
27 import org.apache.hadoop.hbase.hbql.client.HBqlException;
28 import org.apache.hadoop.hbase.hbql.impl.HConnectionImpl;
29 import org.apache.hadoop.hbase.hbql.mapping.ColumnAttrib;
30
31 public class ShortColumn extends GenericColumn<NumberValue> implements NumberValue {
32
33 public ShortColumn(ColumnAttrib attrib) {
34 super(attrib);
35 }
36
37 public Short getValue(final HConnectionImpl conn, final Object object) throws HBqlException,
38 ResultMissingColumnException,
39 NullColumnValueException {
40 if (this.getExpressionContext().useResultData())
41 return (Short)this.getColumnAttrib().getValueFromBytes((Result)object);
42 else
43 return (Short)this.getColumnAttrib().getCurrentValue(object);
44 }
45 }