/*
* SchemaCrawler
* Copyright (c) 2000-2009, Sualeh Fatehi.
*
* 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 schemacrawler.execute;
import java.io.PrintWriter;
import java.sql.ResultSet;
/**
* Handler for SQL executor.
*/
public interface DataHandler
{
/**
* Handles the begin of the execution.
*
* @throws QueryExecutorException
* On an exception
*/
void begin()
throws QueryExecutorException;
/**
* Handles the end of the execution.
*
* @throws QueryExecutorException
* On an exception
*/
void end()
throws QueryExecutorException;
/**
* Gets the output print writer.
*
* @return Print writer
*/
PrintWriter getPrintWriter();
/**
* Handles actual data.
*
* @param rows
* Data from the execution.
* @throws QueryExecutorException
* On an exception
*/
void handleData(final String title, final ResultSet rows)
throws QueryExecutorException;
}