/*
* Copyright 1999,2004 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 org.apache.log4j.jdbcplus;
import org.apache.log4j.spi.LoggingEvent;
/**
* This interface has to be implemented to provide DYNAMIC-columns with content
* and its used in class JDBCLogger.
*
* @author
* <a href="mailto:t.fenner@klopotek.de">Thomas Fenner</a>,
* <a href="http://www.mannhaupt.com/danko/contact/">Danko Mannhaupt</a>
* @since 1.0
* @version see jdbcappender.jar/META-INF/MANIFEST.MF for version information
*/
public interface JDBCColumnHandler {
/**
* Defines the Object that is to be logged for this column.
* Make sure the result is accepted as input type for your JDBC driver.
* For Firebird, this includes for example:
* BigDecimal, Blob, Boolean, byte[], Date, Double, Float, Integer, Long, Short, String,
* Time, Timestamp.
* @param event
* LoggingEvent with message and other details
* @param table
* table name
* @param column
* column name
* @return The Object to log. Type must match allowed types of JDBC driver (see above).
* @exception Exception
* may throw any Exception
*/
Object getObject(LoggingEvent event, String table, String column) throws Exception;
}