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Java > Open Source Codes > org > apache > derby > iapi > types > BitDataValue


1 /*
2
3    Derby - Class org.apache.derby.iapi.types.BitDataValue
4
5    Licensed to the Apache Software Foundation (ASF) under one or more
6    contributor license agreements. See the NOTICE file distributed with
7    this work for additional information regarding copyright ownership.
8    The ASF licenses this file to you under the Apache License, Version 2.0
9    (the "License"); you may not use this file except in compliance with
10    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
22 package org.apache.derby.iapi.types;
23
24 import org.apache.derby.iapi.error.StandardException;
25 import org.apache.derby.iapi.services.io.FormatableBitSet;
26
27 import org.apache.derby.iapi.services.io.StreamStorable;
28
29 /*
30  * The BitDataValue interface corresponds to a SQL BIT
31  */
32
33 public interface BitDataValue extends ConcatableDataValue, StreamStorable
34 {
35     /**
36      * The SQL concatenation '||' operator.
37      *
38      * @param leftOperand String on the left hand side of '||'
39      * @param rightOperand String on the right hand side of '||'
40      * @param result The result of a previous call to this method,
41      * null if not called yet.
42      *
43      * @return A ConcatableDataValue containing the result of the '||'
44      *
45      * @exception StandardException Thrown on error
46      */
47     public BitDataValue concatenate(
48                 BitDataValue leftOperand,
49                 BitDataValue rightOperand,
50                 BitDataValue result)
51         throws StandardException;
52
53 }
54
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