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1   /*
2    * Grapht, an open source dependency injector.
3    * Copyright 2014-2015 various contributors (see CONTRIBUTORS.txt)
4    * Copyright 2010-2014 Regents of the University of Minnesota
5    *
6    * This program is free software; you can redistribute it and/or modify
7    * it under the terms of the GNU Lesser General Public License as
8    * published by the Free Software Foundation; either version 2.1 of the
9    * License, or (at your option) any later version.
10   *
11   * This program is distributed in the hope that it will be useful, but WITHOUT
12   * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
13   * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
14   * details.
15   *
16   * You should have received a copy of the GNU General Public License along with
17   * this program; if not, write to the Free Software Foundation, Inc., 51
18   * Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
19   */
20  package org.grouplens.grapht;
21  
22  /**
23   * Interface for instantiating components.  It functions much like {@link javax.inject.Provider},
24   * except that it reports failure with a checked exception.
25   *
26   * @author <a href="http://www.grouplens.org">GroupLens Research</a>
27   * @since 0.9
28   */
29  public interface Instantiator{
30      Object instantiate() throws ConstructionException;
31  
32      /**
33       * Get the type that this instantiator will instantiate.
34       * @return The type returned by this instantiator.
35       */
36      Class getType();
37  }