001 /* SQLData.java -- Custom mapping for a user defined datatype
002 Copyright (C) 1999, 2000, 2006 Free Software Foundation, Inc.
003
004 This file is part of GNU Classpath.
005
006 GNU Classpath is free software; you can redistribute it and/or modify
007 it under the terms of the GNU General Public License as published by
008 the Free Software Foundation; either version 2, or (at your option)
009 any later version.
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013 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
014 General Public License for more details.
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019 02110-1301 USA.
020
021 Linking this library statically or dynamically with other modules is
022 making a combined work based on this library. Thus, the terms and
023 conditions of the GNU General Public License cover the whole
024 combination.
025
026 As a special exception, the copyright holders of this library give you
027 permission to link this library with independent modules to produce an
028 executable, regardless of the license terms of these independent
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031 independent module, the terms and conditions of the license of that
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034 this exception to your version of the library, but you are not
035 obligated to do so. If you do not wish to do so, delete this
036 exception statement from your version. */
037
038
039 package java.sql;
040
041 /**
042 * This interface is used for mapping SQL data to user defined datatypes.
043 *
044 * @author Aaron M. Renn (arenn@urbanophile.com)
045 */
046 public interface SQLData
047 {
048 /**
049 * This method returns the user defined datatype name for this object.
050 *
051 * @return The user defined data type name for this object.
052 * @exception SQLException If an error occurs.
053 */
054 String getSQLTypeName() throws SQLException;
055
056 /**
057 * This method populates the data in the object from the specified stream.
058 *
059 * @param stream The stream to read the data from.
060 * @param typeName The data type name of the data on the stream.
061 * @exception SQLException If an error occurs.
062 */
063 void readSQL(SQLInput stream, String typeName) throws SQLException;
064
065 /**
066 * This method writes the data in this object to the specified stream.
067 *
068 * @param stream The stream to write the data to.
069 * @exception SQLException If an error occurs.
070 */
071 void writeSQL(SQLOutput stream) throws SQLException;
072 }