xref: /AOO41X/main/odk/examples/DevelopersGuide/Database/Sales.java (revision 34dd1e2512dbacb6a9a7e4c7f17b9296daa8eff3)
1 /**************************************************************
2  *
3  * Licensed to the Apache Software Foundation (ASF) under one
4  * or more contributor license agreements.  See the NOTICE file
5  * distributed with this work for additional information
6  * regarding copyright ownership.  The ASF licenses this file
7  * to you under the Apache License, Version 2.0 (the
8  * "License"); you may not use this file except in compliance
9  * with the License.  You may obtain a copy of the License at
10  *
11  *   http://www.apache.org/licenses/LICENSE-2.0
12  *
13  * Unless required by applicable law or agreed to in writing,
14  * software distributed under the License is distributed on an
15  * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
16  * KIND, either express or implied.  See the License for the
17  * specific language governing permissions and limitations
18  * under the License.
19  *
20  *************************************************************/
21 
22 
23 
24 import java.io.*;
25 
26 //  import com.sun.star.comp.helper.RegistryServiceFactory;
27 //  import com.sun.star.comp.servicemanager.ServiceManager;
28 //  import com.sun.star.lang.XMultiServiceFactory;
29 //  import com.sun.star.lang.XServiceInfo;
30 import com.sun.star.lang.XComponent;
31 //  import com.sun.star.bridge.XUnoUrlResolver;
32 import com.sun.star.uno.*;
33 import com.sun.star.util.Date;
34 import com.sun.star.beans.XPropertySet;
35 import com.sun.star.container.XNameAccess;
36 import com.sun.star.sdbc.*;
37 
38 public class Sales
39 {
40     private XConnection con;
41 
Sales(XConnection connection )42     public Sales(XConnection connection )
43     {
44         con = connection;
45     }
46     // create the table sales.
createSalesTable()47     public void createSalesTable() throws com.sun.star.uno.Exception
48     {
49         String createTableSales = "CREATE TABLE SALES " +
50                 "(SALENR INTEGER NOT NULL, " +
51                 " COS_NR INTEGER, " +
52                 " SNR INTEGER, " +
53                 " NAME VARCHAR(50)," +
54                 " SALEDATE DATE," +
55                 " PRICE FLOAT(10), " +
56                 " PRIMARY KEY(SALENR)" +
57                 " )";
58         XStatement stmt = con.createStatement();
59         stmt.executeUpdate( createTableSales );
60     }
61 
62     // drop the table sales.
dropSalesTable()63     public void dropSalesTable() throws com.sun.star.uno.Exception
64     {
65         String createTableSalesman = "DROP TABLE SALES ";
66         XStatement stmt = con.createStatement();
67         stmt.executeUpdate( createTableSalesman );
68     }
69 
70     // insert data into the table sales.
insertDataIntoSales()71     public void insertDataIntoSales() throws com.sun.star.uno.Exception
72     {
73         XStatement stmt = con.createStatement();
74         stmt.executeUpdate("INSERT INTO SALES " +
75                 "VALUES (1, '100', '1','Linux','2001-02-12',15)");
76         stmt.executeUpdate("INSERT INTO SALES " +
77                 "VALUES (2, '101', '2','Beef','2001-10-18',15.78)");
78         stmt.executeUpdate("INSERT INTO SALES " +
79                 "VALUES (3, '104', '4','orange juice','2001-08-09',1.5)");
80     }
81 
82     // update the table sales with a prepared statement.
updateSales()83     public void updateSales() throws com.sun.star.uno.Exception
84     {
85         XStatement stmt = con.createStatement();
86         String updateString =   "UPDATE SALES " +
87                                 "SET PRICE = 30 " +
88                                 "WHERE SALENR = 1";
89         stmt.executeUpdate(updateString);
90     }
91 
92     // retrieve the data of the table sales.
retrieveSalesData()93     public void retrieveSalesData() throws com.sun.star.uno.Exception
94     {
95         XStatement stmt = con.createStatement();
96         String query =  "SELECT NAME, PRICE FROM SALES " +
97                         "WHERE SALENR = 1";
98         XResultSet rs = stmt.executeQuery(query);
99         XRow      row = (XRow)UnoRuntime.queryInterface(XRow.class, rs);
100         while (rs.next()) {
101                 String s = row.getString(1);
102                 float  n = row.getFloat(2);
103                 System.out.println("The current price for " + s + " is: $" + n + ".");
104         }
105     }
106 
107     // create a scrollable resultset.
retrieveSalesData2()108     public void retrieveSalesData2() throws com.sun.star.uno.Exception
109     {
110         // example for a programmatic way to do updates. This doesn't work with adabas.
111         XStatement stmt = con.createStatement();
112         XPropertySet xProp = (XPropertySet)UnoRuntime.queryInterface(XPropertySet.class,stmt);
113 
114         xProp.setPropertyValue("ResultSetType", new java.lang.Integer(ResultSetType.SCROLL_INSENSITIVE));
115         xProp.setPropertyValue("ResultSetConcurrency", new java.lang.Integer(ResultSetConcurrency.UPDATABLE));
116 
117         XResultSet srs = stmt.executeQuery("SELECT NAME, PRICE FROM SALES");
118         XRow       row = (XRow)UnoRuntime.queryInterface(XRow.class,srs);
119 
120         srs.afterLast();
121         while (srs.previous()) {
122             String name = row.getString(1);
123             float price = row.getFloat(2);
124             System.out.println(name + "     " + price);
125         }
126 
127         srs.last();
128         XRowUpdate updateRow = (XRowUpdate)UnoRuntime.queryInterface(XRowUpdate.class,srs);
129         updateRow.updateFloat(2, (float)0.69);
130 
131         XResultSetUpdate updateRs = ( XResultSetUpdate )UnoRuntime.queryInterface(
132             XResultSetUpdate.class,srs);
133         updateRs.updateRow(); // this call updates the data in DBMS
134 
135         srs.last();
136         updateRow.updateFloat(2, (float)0.99);
137         updateRs.cancelRowUpdates();
138         updateRow.updateFloat(2, (float)0.79);
139         updateRs.updateRow();
140     }
141 
142     // inserts a row programmatically.
insertRow()143     public void insertRow() throws com.sun.star.uno.Exception
144     {
145         // example for a programmatic way to do updates. This doesn't work with adabas.
146         XStatement stmt = con.createStatement();
147 //      stmt.executeUpdate("INSERT INTO SALES " +
148 //                   "VALUES (4, 102, 5, 'FTOP Darjeeling tea', '2002-01-02',150)");
149 //
150 //      stmt = con.createStatement();
151         XPropertySet xProp = (XPropertySet)UnoRuntime.queryInterface(XPropertySet.class,stmt);
152         xProp.setPropertyValue("ResultSetType", new java.lang.Integer(ResultSetType.SCROLL_INSENSITIVE));
153         xProp.setPropertyValue("ResultSetConcurrency", new java.lang.Integer(ResultSetConcurrency.UPDATABLE));
154         XResultSet rs = stmt.executeQuery("SELECT * FROM SALES");
155         XRow       row = (XRow)UnoRuntime.queryInterface(XRow.class,rs);
156 
157         // insert a new row
158         XRowUpdate updateRow = (XRowUpdate)UnoRuntime.queryInterface(XRowUpdate.class,rs);
159         XResultSetUpdate updateRs = ( XResultSetUpdate )UnoRuntime. queryInterface(XResultSetUpdate.class,rs);
160         updateRs.moveToInsertRow();
161         updateRow.updateInt(1, 4);
162         updateRow.updateInt(2, 102);
163         updateRow.updateInt(3, 5);
164         updateRow.updateString(4, "FTOP Darjeeling tea");
165         updateRow.updateDate(5, new Date((short)1,(short)2,(short)2002));
166         updateRow.updateFloat(6, 150);
167         updateRs.insertRow();
168     }
169 
170     // deletes a row programmatically.
deleteRow()171     public void deleteRow() throws com.sun.star.uno.Exception
172     {
173         // example for a programmatic way to do updates. This doesn't work with adabas.
174         XStatement stmt = con.createStatement();
175         XPropertySet xProp = (XPropertySet)UnoRuntime.queryInterface(XPropertySet.class,stmt);
176         xProp.setPropertyValue("ResultSetType", new java.lang.Integer(ResultSetType.SCROLL_INSENSITIVE));
177         xProp.setPropertyValue("ResultSetConcurrency", new java.lang.Integer(ResultSetConcurrency.UPDATABLE));
178         XResultSet rs = stmt.executeQuery("SELECT * FROM SALES");
179         XRow       row = (XRow)UnoRuntime.queryInterface(XRow.class,rs);
180 
181         XResultSetUpdate updateRs = ( XResultSetUpdate )UnoRuntime. queryInterface(XResultSetUpdate.class,rs);
182         // move to the inserted row
183         rs.absolute(4);
184         updateRs.deleteRow();
185     }
186 
187     // refresh a row
refreshRow()188     public void refreshRow() throws com.sun.star.uno.Exception
189     {
190         // example for a programmatic way to do updates. This doesn't work with adabas.
191         // first we need the 4 row
192         insertRow();
193 
194         XStatement stmt = con.createStatement();
195         XPropertySet xProp = (XPropertySet)UnoRuntime.queryInterface(XPropertySet.class,stmt);
196         xProp.setPropertyValue("ResultSetType", new java.lang.Integer(ResultSetType.SCROLL_INSENSITIVE));
197         xProp.setPropertyValue("ResultSetConcurrency", new java.lang.Integer(ResultSetConcurrency.READ_ONLY));
198         XResultSet rs = stmt.executeQuery("SELECT NAME, PRICE FROM SALES");
199         XRow       row = (XRow)UnoRuntime.queryInterface(XRow.class, rs);
200         rs.absolute(4);
201         float price1 = row.getFloat(2);
202 
203         // modifiy the 4 row
204         XRowUpdate updateRow = (XRowUpdate)UnoRuntime.queryInterface(XRowUpdate.class,rs);
205         XResultSetUpdate updateRs = ( XResultSetUpdate )UnoRuntime. queryInterface(XResultSetUpdate.class,rs);
206         updateRow.updateFloat(2, 150);
207         updateRs.updateRow();
208         // repositioning
209         rs.absolute(4);
210         rs.refreshRow();
211         float price2 = row.getFloat(2);
212         if (price2 != price1) {
213             System.out.println("Prices are different.");
214         }
215         else
216             System.out.println("Prices are equal.");
217         deleteRow();
218     }
219 
220     // displays the column names
displayColumnNames()221     public void displayColumnNames() throws com.sun.star.uno.Exception
222     {
223         XStatement stmt = con.createStatement();
224         XPropertySet xProp = (XPropertySet)UnoRuntime.queryInterface(XPropertySet.class,stmt);
225         xProp.setPropertyValue("ResultSetType", new java.lang.Integer(ResultSetType.SCROLL_INSENSITIVE));
226         xProp.setPropertyValue("ResultSetConcurrency", new java.lang.Integer(ResultSetConcurrency.READ_ONLY));
227         XResultSet rs = stmt.executeQuery("SELECT NAME, PRICE FROM SALES");
228         XResultSetMetaDataSupplier xRsMetaSup = (XResultSetMetaDataSupplier)
229             UnoRuntime.queryInterface(XResultSetMetaDataSupplier.class,rs);
230         XResultSetMetaData xRsMetaData =  xRsMetaSup.getMetaData();
231         int nColumnCount =  xRsMetaData.getColumnCount();
232         for(int i=1 ; i <= nColumnCount ; ++i)
233         {
234            System.out.println("Name: " + xRsMetaData.getColumnName(i) + " Type: " +
235                               xRsMetaData.getColumnType(i));
236         }
237     }
238 }
239 
240