Source Code Cross Referenced for Ref.java in  » Apache-Harmony-Java-SE » java-package » java » sql » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Apache Harmony Java SE » java package » java.sql 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


01:        /* 
02:         * Licensed to the Apache Software Foundation (ASF) under one or more
03:         * contributor license agreements.  See the NOTICE file distributed with
04:         * this work for additional information regarding copyright ownership.
05:         * The ASF licenses this file to You under the Apache License, Version 2.0
06:         * (the "License"); you may not use this file except in compliance with
07:         * the License.  You may obtain a copy of the License at
08:         * 
09:         *     http://www.apache.org/licenses/LICENSE-2.0
10:         * 
11:         * Unless required by applicable law or agreed to in writing, software
12:         * distributed under the License is distributed on an "AS IS" BASIS,
13:         * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14:         * See the License for the specific language governing permissions and
15:         * limitations under the License.
16:         */
17:
18:        package java.sql;
19:
20:        import java.util.Map;
21:
22:        /**
23:         * A manifestation of the SQL REF type - a reference to an SQL type contained in
24:         * the database.
25:         * <p>
26:         * The SQL REF's are held in a table along with SQL structured types. Every REF
27:         * has an individual identifier for each single instance. The SQL REF is used
28:         * instead of the structured type it references.
29:         * <p>
30:         * A Ref object is stored into the database using the PreparedStatement.setRef
31:         * method.
32:         */
33:        public interface Ref {
34:
35:            /**
36:             * Gets the fully-qualified SQL name of the SQL structured type that this
37:             * Ref references.
38:             * 
39:             * @return the fully qualified name of the SQL structured type
40:             * @throws SQLException
41:             *             if there is a database error
42:             */
43:            public String getBaseTypeName() throws SQLException;
44:
45:            /**
46:             * Gets the SQL structured type instance referenced by this Ref.
47:             * 
48:             * @return a Java object whose type is defined by the mapping for the SQL
49:             *         structured type.
50:             * @throws SQLException
51:             *             if there is a database error
52:             */
53:            public Object getObject() throws SQLException;
54:
55:            /**
56:             * Returns the associated object and uses the relevant mapping to convert it
57:             * to a Java type.
58:             * 
59:             * @param map
60:             *            a java.util.Map which contains the mapping to use
61:             * @return a Java object whose type is defined by the mapping for the SQL
62:             *         structured type.
63:             * @throws SQLException
64:             *             if there is a database error
65:             */
66:            public Object getObject(Map<String, Class<?>> map)
67:                    throws SQLException;
68:
69:            /**
70:             * Sets the value of the structured typethat this Ref references to a
71:             * supplied Object.
72:             * 
73:             * @param value
74:             *            the Object representing the new SQL structured type that this
75:             *            Ref will reference.
76:             * @throws SQLException
77:             *             if there is a database error
78:             */
79:            public void setObject(Object value) throws SQLException;
80:        }
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