01: /*
02:
03: Derby - Class org.apache.derby.client.am.Statement40
04:
05: Licensed to the Apache Software Foundation (ASF) under one or more
06: contributor license agreements. See the NOTICE file distributed with
07: this work for additional information regarding copyright ownership.
08: The ASF licenses this file to You under the Apache License, Version 2.0
09: (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.client.am;
23:
24: import java.sql.SQLException;
25: import org.apache.derby.shared.common.reference.SQLState;
26:
27: /**
28: * Implements JDBC 4.0 specific methods
29: */
30:
31: public class Statement40 extends Statement {
32: /**
33: * Calls the super class constructor to pass the parameters
34: * @param agent Agent
35: * @param connection Connection
36: * @throws SqlException
37: *
38: */
39: public Statement40(Agent agent, Connection connection)
40: throws SqlException {
41: super (agent, connection);
42: }
43:
44: /**
45: * Calls the superclass constructor to pass the arguments
46: * @param agent Agent
47: * @param connection Connection
48: * @param type int
49: * @param concurrency int
50: * @param holdability int
51: * @param autoGeneratedKeys int
52: * @param columnNames String[]
53: * @throws SqlException
54: *
55: */
56: public Statement40(Agent agent, Connection connection, int type,
57: int concurrency, int holdability, int autoGeneratedKeys,
58: String[] columnNames) throws SqlException {
59: super (agent, connection, type, concurrency, holdability,
60: autoGeneratedKeys, columnNames);
61: }
62:
63: /**
64: * Returns <code>this</code> if this class implements the interface
65: *
66: * @param interfaces a Class defining an interface
67: * @return an object that implements the interface
68: * @throws java.sql.SQLExption if no object if found that implements the
69: * interface
70: */
71: public <T> T unwrap(java.lang.Class<T> interfaces)
72: throws SQLException {
73: try {
74: checkForClosedStatement();
75: return interfaces.cast(this );
76: } catch (ClassCastException cce) {
77: throw new SqlException(null, new ClientMessageId(
78: SQLState.UNABLE_TO_UNWRAP), interfaces)
79: .getSQLException();
80: } catch (SqlException se) {
81: throw se.getSQLException();
82: }
83: }
84: }
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