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package de.lmu.ifi.dbs.elki.result.textwriter;
/*
This file is part of ELKI:
Environment for Developing KDD-Applications Supported by Index-Structures
Copyright (C) 2011
Ludwig-Maximilians-Universität München
Lehr- und Forschungseinheit für Datenbanksysteme
ELKI Development Team
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
import java.io.IOException;
import java.io.PrintStream;
/**
* Interface for output handling (single file, multiple files, ...)
*
* @author Erich Schubert
*/
public interface StreamFactory {
/**
* Retrieve a print stream for output using the given label.
* Note that multiple labels MAY result in the same PrintStream, so you
* should be printing to only one stream at a time to avoid mixing outputs.
*
* @param label Output label.
* @return stream object for the given label
* @throws IOException on IO error
*/
public PrintStream openStream(String label) throws IOException;
/**
* Close (and forget) all streams the factory has opened.
*/
public void closeAllStreams();
}
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