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Java > Open Source Codes > org > apache > derby > impl > store > raw > data > SpaceInformation


1 /*
2
3    Derby - Class org.apache.derby.impl.store.raw.data.SpaceInformation
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.impl.store.raw.data;
23
24 import org.apache.derby.iapi.store.access.SpaceInfo;
25 /**
26
27 Manage the result information from a single call to
28 ConglomerateController.getSpaceInfo().
29 <p>
30
31 **/
32
33 public class SpaceInformation implements SpaceInfo
34 {
35
36     private long numAllocatedPages;
37     private long numFreePages;
38     private long numUnfilledPages;
39     private int pageSize;
40
41     public SpaceInformation(
42         long numAllocatedPages,
43         long numFreePages,
44         long numUnfilledPages)
45     {
46         this.numAllocatedPages = numAllocatedPages;
47         this.numFreePages = numFreePages;
48         this.numUnfilledPages = numUnfilledPages;
49     }
50
51     /**
52      * Get the estimated number of allocated pages
53      **/
54     public long getNumAllocatedPages()
55     {
56         return numAllocatedPages;
57     }
58
59     /**
60      * Get the estimated number of free pages
61      **/
62     public long getNumFreePages()
63     {
64         return numFreePages;
65     }
66
67     /**
68      * Get the estimated number of unfilled pages
69      **/
70     public long getNumUnfilledPages()
71     {
72         return numUnfilledPages;
73     }
74
75     /*
76     Get the page size for the conglomerate.
77     */
78     public int getPageSize()
79     {
80         return pageSize;
81     }
82
83     /*
84     record the page size for the conglomerate.
85     */
86     public void setPageSize(int pageSize)
87     {
88         this.pageSize = pageSize;
89     }
90 }
91
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