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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 de.lmu.ifi.dbs.elki.utilities.exceptions.UnableToComplyException;

/**
 * Base class for object writers.
 * 
 * @author Erich Schubert
 *
 * @param <O> Object type (usually the class itself)
 */
public abstract class TextWriterWriterInterface<O> {
  /**
   * Write a given object to the output stream.
   * 
   * @param out Output stream
   * @param label Label to prefix
   * @param object object to output
   * @throws UnableToComplyException on errors
   * @throws IOException on IO errors
   */
  public abstract void write(TextWriterStream out, String label, O object) throws UnableToComplyException, IOException;
  
  /**
   * Non-type-checking version.
   * 
   * @param out Output stream
   * @param label Label to prefix
   * @param object object to output
   * @throws UnableToComplyException on errors
   * @throws IOException on IO errors
   */
  @SuppressWarnings("unchecked")
  public final void writeObject(TextWriterStream out, String label, Object object) throws UnableToComplyException, IOException {
    write(out, label, (O) object);
  }
}