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Java > Open Source Codes > collections > ship > factory > SampleViews


1 /*-
2  * See the file LICENSE for redistribution information.
3  *
4  * Copyright (c) 2002,2006 Oracle. All rights reserved.
5  *
6  * $Id: SampleViews.java,v 1.14 2006/10/30 21:13:59 bostic Exp $
7  */
8
9 package collections.ship.factory;
10
11 import com.sleepycat.collections.StoredSortedMap;
12 import com.sleepycat.collections.StoredSortedValueSet;
13 import com.sleepycat.collections.TupleSerialFactory;
14
15 /**
16  * SampleViews defines the data bindings and collection views for the sample
17  * database.
18  *
19  * @author Mark Hayes
20  */
21 public class SampleViews {
22
23     private StoredSortedMap partMap;
24     private StoredSortedMap supplierMap;
25     private StoredSortedMap shipmentMap;
26     private StoredSortedMap shipmentByPartMap;
27     private StoredSortedMap shipmentBySupplierMap;
28     private StoredSortedMap supplierByCityMap;
29
30     /**
31      * Create the data bindings and collection views.
32      */
33     public SampleViews(SampleDatabase db) {
34
35         // Use the TupleSerialFactory for a Serial/Tuple-based database
36 // where marshalling interfaces are used.
37 //
38 TupleSerialFactory factory = db.getFactory();
39
40         // Create map views for all stores and indices.
41 // StoredSortedMap is used since the stores and indices are ordered
42 // (they use the DB_BTREE access method).
43 //
44 partMap =
45             factory.newSortedMap(db.getPartDatabase(),
46                                  PartKey.class, Part.class, true);
47         supplierMap =
48             factory.newSortedMap(db.getSupplierDatabase(),
49                                  SupplierKey.class, Supplier.class, true);
50         shipmentMap =
51             factory.newSortedMap(db.getShipmentDatabase(),
52                                  ShipmentKey.class, Shipment.class, true);
53         shipmentByPartMap =
54             factory.newSortedMap(db.getShipmentByPartDatabase(),
55                                  PartKey.class, Shipment.class, true);
56         shipmentBySupplierMap =
57             factory.newSortedMap(db.getShipmentBySupplierDatabase(),
58                                  SupplierKey.class, Shipment.class, true);
59         supplierByCityMap =
60             factory.newSortedMap(db.getSupplierByCityDatabase(),
61                                  String JavaDoc.class, Supplier.class, true);
62     }
63
64     // The views returned below can be accessed using the java.util.Map or
65 // java.util.Set interfaces, or using the StoredMap and StoredValueSet
66 // classes, which provide additional methods. The entity sets could be
67 // obtained directly from the Map.values() method but convenience methods
68 // are provided here to return them in order to avoid down-casting
69 // elsewhere.
70
71     /**
72      * Return a map view of the part storage container.
73      */
74     public StoredSortedMap getPartMap() {
75
76         return partMap;
77     }
78
79     /**
80      * Return a map view of the supplier storage container.
81      */
82     public StoredSortedMap getSupplierMap() {
83
84         return supplierMap;
85     }
86
87     /**
88      * Return a map view of the shipment storage container.
89      */
90     public StoredSortedMap getShipmentMap() {
91
92         return shipmentMap;
93     }
94
95     /**
96      * Return an entity set view of the part storage container.
97      */
98     public StoredSortedValueSet getPartSet() {
99
100         return (StoredSortedValueSet) partMap.values();
101     }
102
103     /**
104      * Return an entity set view of the supplier storage container.
105      */
106     public StoredSortedValueSet getSupplierSet() {
107
108         return (StoredSortedValueSet) supplierMap.values();
109     }
110
111     /**
112      * Return an entity set view of the shipment storage container.
113      */
114     public StoredSortedValueSet getShipmentSet() {
115
116         return (StoredSortedValueSet) shipmentMap.values();
117     }
118
119     /**
120      * Return a map view of the shipment-by-part index.
121      */
122     public StoredSortedMap getShipmentByPartMap() {
123
124         return shipmentByPartMap;
125     }
126
127     /**
128      * Return a map view of the shipment-by-supplier index.
129      */
130     public StoredSortedMap getShipmentBySupplierMap() {
131
132         return shipmentBySupplierMap;
133     }
134
135     /**
136      * Return a map view of the supplier-by-city index.
137      */
138     public StoredSortedMap getSupplierByCityMap() {
139
140         return supplierByCityMap;
141     }
142 }
143
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