01: /*
02:
03: Derby - Class org.apache.derby.iapi.types.CloneableObject
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: /**
25: * This is a simple interface that is used by the
26: * sorter for cloning input rows. It defines
27: * a method that can be used to clone a column.
28: */
29: public interface CloneableObject {
30: /**
31: * Get a shallow copy of the object and return
32: * it. This is used by the sorter to clone
33: * columns. It should be cloning the column
34: * holder but not its value. The only difference
35: * between this method and getClone is this one does
36: * not objectify a stream.
37: *
38: * @return new cloned column as an object
39: */
40: public Object cloneObject();
41: }
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