01: /* ====================================================================
02: Licensed to the Apache Software Foundation (ASF) under one or more
03: contributor license agreements. See the NOTICE file distributed with
04: this work for additional information regarding copyright ownership.
05: The ASF licenses this file to You under the Apache License, Version 2.0
06: (the "License"); you may not use this file except in compliance with
07: the License. You may obtain a copy of the License at
08:
09: http://www.apache.org/licenses/LICENSE-2.0
10:
11: Unless required by applicable law or agreed to in writing, software
12: distributed under the License is distributed on an "AS IS" BASIS,
13: WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14: See the License for the specific language governing permissions and
15: limitations under the License.
16: ==================================================================== */
17:
18: package org.apache.poi.poifs.property;
19:
20: /**
21: * This interface defines methods for finding and setting sibling
22: * Property instances
23: *
24: * @author Marc Johnson (mjohnson at apache dot org)
25: */
26:
27: public interface Child {
28:
29: /**
30: * Get the next Child, if any
31: *
32: * @return the next Child; may return null
33: */
34:
35: public Child getNextChild();
36:
37: /**
38: * Get the previous Child, if any
39: *
40: * @return the previous Child; may return null
41: */
42:
43: public Child getPreviousChild();
44:
45: /**
46: * Set the next Child
47: *
48: * @param child the new 'next' child; may be null, which has the
49: * effect of saying there is no 'next' child
50: */
51:
52: public void setNextChild(final Child child);
53:
54: /**
55: * Set the previous Child
56: *
57: * @param child the new 'previous' child; may be null, which has
58: * the effect of saying there is no 'previous' child
59: */
60:
61: public void setPreviousChild(final Child child);
62: } // end public interface Child
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