/*
 * @(#)Struct.java	1.22 04/05/05
 *
 * Copyright 2006 Sun Microsystems, Inc. All rights reserved.
 * SUN PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
 */

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 attrbutes are proccessed, 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;
}