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Java > Open Source Codes > org > apache > derby > impl > sql > execute > CallStatementResultSet


1 /*
2
3    Derby - Class org.apache.derby.impl.sql.execute.CallStatementResultSet
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.sql.execute;
23
24 import org.apache.derby.iapi.error.StandardException;
25
26 import org.apache.derby.iapi.sql.execute.ExecutionContext;
27
28 import org.apache.derby.iapi.sql.Activation;
29 import org.apache.derby.iapi.sql.ResultSet;
30 import org.apache.derby.iapi.sql.ResultDescription;
31 import org.apache.derby.iapi.sql.conn.LanguageConnectionContext;
32
33 import org.apache.derby.iapi.services.loader.GeneratedMethod;
34
35 import org.apache.derby.iapi.store.access.TransactionController;
36 import org.apache.derby.iapi.store.access.ConglomerateController;
37
38 import org.apache.derby.iapi.services.sanity.SanityManager;
39
40 /**
41  * Call the specified expression, ignoring the return, if any.
42  *
43  * @author jerry
44  */
45 class CallStatementResultSet extends NoRowsResultSetImpl
46 {
47
48     private final GeneratedMethod methodCall;
49
50     /*
51      * class interface
52      *
53      */
54     CallStatementResultSet(
55                 GeneratedMethod methodCall,
56                 Activation a)
57             throws StandardException
58     {
59         super(a);
60         this.methodCall = methodCall;
61     }
62
63     /**
64         @exception StandardException Standard Cloudscape error policy
65     */
66     public void open() throws StandardException
67     {
68         methodCall.invoke(activation);
69         close();
70     }
71
72     /**
73      * @see ResultSet#cleanUp
74      */
75     public void cleanUp()
76     {
77         /* Nothing to do */
78     }
79 }
80
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