01: /*
02:
03: Derby - Class org.apache.derby.iapi.types.BitDataValue
04:
05: Licensed to the Apache Software Foundation (ASF) under one or more
06: contributor license agreements. See the NOTICE file distributed with
07: this work for additional information regarding copyright ownership.
08: The ASF licenses this file to you under the Apache License, Version 2.0
09: (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,
34: StreamStorable {
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(BitDataValue leftOperand,
48: BitDataValue rightOperand, BitDataValue result)
49: throws StandardException;
50:
51: }
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