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.hwpf.model;
19:
20: import org.apache.poi.hwpf.sprm.SprmBuffer;
21:
22: import java.lang.ref.SoftReference;
23:
24: public class CachedPropertyNode extends PropertyNode {
25: protected SoftReference _propCache;
26:
27: public CachedPropertyNode(int start, int end, SprmBuffer buf) {
28: super (start, end, buf);
29: }
30:
31: protected void fillCache(Object ref) {
32: _propCache = new SoftReference(ref);
33: }
34:
35: protected Object getCacheContents() {
36: return _propCache == null ? null : _propCache.get();
37: }
38:
39: /**
40: * @return This property's property in compressed form.
41: */
42: public SprmBuffer getSprmBuf() {
43: return (SprmBuffer) _buf;
44: }
45:
46: }
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