java.sql.Struct.java Source code

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/*
 * Copyright (c) 1998, 2013, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.  Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Oracle in the LICENSE file that accompanied this code.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 */

package java.sql;

/**
 * <p>The standard mapping in the Java programming language for an SQL
 * structured type. A <code>Struct</code> object contains a
 * value for each attribute of the SQL structured type that
 * it represents.
 * By default, an instance of<code>Struct</code> is valid as long as the
 * application has a reference to it.
 * <p>
 * All methods on the <code>Struct</code> interface must be fully implemented if the
 * JDBC driver supports the data type.
 * @since 1.2
 */

public interface Struct {

    /**
     * Retrieves the SQL type name of the SQL structured type
     * that this <code>Struct</code> object represents.
     *
     * @return the fully-qualified type name of the SQL structured
     *          type for which this <code>Struct</code> object
     *          is the generic representation
     * @exception SQLException if a database access error occurs
     * @exception SQLFeatureNotSupportedException if the JDBC driver does not support
     * this method
     * @since 1.2
     */
    String getSQLTypeName() throws SQLException;

    /**
     * Produces the ordered values of the attributes of the SQL
     * structured type that this <code>Struct</code> object represents.
     * As individual attributes are processed, this method uses the type map
     * associated with the
     * connection for customizations of the type mappings.
     * If there is no
     * entry in the connection's type map that matches the structured
     * type that an attribute represents,
     * the driver uses the standard mapping.
     * <p>
     * Conceptually, this method calls the method
     * <code>getObject</code> on each attribute
     * of the structured type and returns a Java array containing
     * the result.
     *
     * @return an array containing the ordered attribute values
     * @exception SQLException if a database access error occurs
     * @exception SQLFeatureNotSupportedException if the JDBC driver does not support
     * this method
     * @since 1.2
     */
    Object[] getAttributes() throws SQLException;

    /**
     * Produces the ordered values of the attributes of the SQL
     * structured type that this <code>Struct</code> object represents.
     *  As individual attributes are processed, this method uses the given type map
     * for customizations of the type mappings.
     * If there is no
     * entry in the given type map that matches the structured
     * type that an attribute represents,
     * the driver uses the standard mapping. This method never
     * uses the type map associated with the connection.
     * <p>
     * Conceptually, this method calls the method
     * <code>getObject</code> on each attribute
     * of the structured type and returns a Java array containing
     * the result.
     *
     * @param map a mapping of SQL type names to Java classes
     * @return an array containing the ordered attribute values
     * @exception SQLException if a database access error occurs
     * @exception SQLFeatureNotSupportedException if the JDBC driver does not support
     * this method
     * @since 1.2
     */
    Object[] getAttributes(java.util.Map<String, Class<?>> map) throws SQLException;
}