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/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package java.sql;

import java.util.Map;

/**
 * This interface represents an SQL Ref - a data object containing a cursor
 * or pointer to a result table.
 * 

* The data structure identified by an instance of Ref is held in the * database, so the data is not necessarily read and converted * into a Java object until {@code getObject} is called. However, if * the database supports the {@code Ref} type, it is not typically * necessary to get the underlying object before using it in a method call - * the {@code Ref} object can be used in place of the data structure. *

* A {@code Ref} object is stored into the database using the * {@link PreparedStatement#setRef(int, Ref)} method. */ public interface Ref { /** * Gets the fully-qualified SQL name of the SQL structured type that this * {@code Ref} references. * * @return the fully qualified name of the SQL structured type. * @throws SQLException * if there is a database error. */ public String getBaseTypeName() throws SQLException; /** * Gets the SQL structured type instance referenced by this {@code Ref}. * * @return a Java object whose type is defined by the mapping for the SQL * structured type. * @throws SQLException * if there is a database error. */ public Object getObject() throws SQLException; /** * Returns the associated object and uses the relevant mapping to convert it * to a Java type. * * @param map * the mapping for type conversion. * @return a Java object whose type is defined by the mapping for the SQL * structured type. * @throws SQLException * if there is a database error. */ public Object getObject(Map> map) throws SQLException; /** * Sets the value of the structured type that this {@code Ref} references to * a supplied object. * * @param value * the {@code Object} representing the new SQL structured type * that this {@code Ref} references. * @throws SQLException * if there is a database error. */ public void setObject(Object value) throws SQLException; }





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