| /* |
| * Copyright 2002,2004 The Apache Software Foundation. |
| * |
| * Licensed 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 javax.servlet.jsp.jstl.sql; |
| |
| /** |
| * <p>This interface allows tag handlers implementing it to receive |
| * values for parameter markers ("?") in their SQL statements.</p> |
| * |
| * <p>This interface is implemented by both <sql:query> and |
| * <sql:update>. Its <code>addSQLParameter()</code> method |
| * is called by nested parameter actions (such as <sql:param>) |
| * to substitue <code>PreparedStatement<code> parameter values for |
| * "?" parameter markers in the SQL statement of the enclosing |
| * <code>SQLExecutionTag</code> action.</p> |
| * |
| * <p>The given parameter values are converted to their corresponding |
| * SQL type (following the rules in the JDBC specification) before |
| * they are sent to the database.</p> |
| * |
| * <p>Keeing track of the index of the parameter values being added |
| * is the responsibility of the tag handler implementing this |
| * interface</p> |
| * |
| * <p>The <code>SQLExcecutionTag</code> interface is exposed in order |
| * to support custom parameter actions which may retrieve their |
| * parameters from any source and process them before substituting |
| * them for a parameter marker in the sQL statement of the |
| * enclosing <code>SQLExecutionTag</code> action</p> |
| * |
| * @author Justyna Horwat |
| */ |
| public interface SQLExecutionTag { |
| |
| /** |
| * Adds a PreparedStatement parameter value |
| * |
| * @param the PreparedStatement parameter value |
| */ |
| public void addSQLParameter(Object value); |
| } |