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Java > Open Source Codes > org > apache > derby > iapi > sql > conn > ConnectionUtil


1 /*
2
3    Derby - Class org.apache.derby.iapi.sql.conn.ConnectionUtil
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.iapi.sql.conn;
23
24 import org.apache.derby.iapi.services.context.ContextService;
25 import org.apache.derby.iapi.error.StandardException;
26 import org.apache.derby.iapi.services.i18n.MessageService;
27 import org.apache.derby.iapi.reference.SQLState;
28 import org.apache.derby.iapi.error.ExceptionSeverity;
29
30 import java.sql.SQLException JavaDoc;
31
32 public class ConnectionUtil {
33
34     /**
35         Get the current LanguageConnectionContext.
36         Used by public api code that needs to ensure it
37         is in the context of a SQL connection.
38
39         @exception SQLException Caller is not in the context of a connection.
40     */
41     public static LanguageConnectionContext getCurrentLCC()
42         throws SQLException JavaDoc {
43
44             LanguageConnectionContext lcc = (LanguageConnectionContext)
45                 ContextService.getContextOrNull(LanguageConnectionContext.CONTEXT_ID);
46
47             if (lcc == null)
48                 throw new SQLException JavaDoc(
49                             // No current connection
50 MessageService.getTextMessage(
51                                             SQLState.NO_CURRENT_CONNECTION),
52                             SQLState.NO_CURRENT_CONNECTION,
53                             ExceptionSeverity.SESSION_SEVERITY);
54
55             return lcc;
56     }
57 }
58
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