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Standard interfaces implemented throughout the library.

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/*
 *    GeoTools - The Open Source Java GIS Toolkit
 *    http://geotools.org
 *
 *    (C) 2011, Open Source Geospatial Foundation (OSGeo)
 *    (C) 2003-2005, Open Geospatial Consortium Inc.
 *
 *    All Rights Reserved. http://www.opengis.org/legal/
 */
package org.opengis.referencing;

import org.opengis.annotation.Extension;
import org.opengis.metadata.citation.Citation;

/**
 * Base interface for all factories. Factories can be grouped in two categories:
 *
 * 
 *
 * 

 *   {@linkplain AuthorityFactory Authority factories} creates objects from a compact string
 *       defined by an authority.
 *   
{@linkplain ObjectFactory Object factories} allows applications to make objects that cannot
 *       be created by an authority factory. This factory is very flexible, whereas the authority
 *       factory is easier to use.
 * 
 *
 * @author Martin Desruisseaux (IRD)
 * @since GeoAPI 1.0
 */
@Extension
public interface Factory {
    /**
     * Returns the vendor responsible for creating this factory implementation. Many implementations
     * may be available for the same factory interface. Implementations are usually managed by a
     * {@linkplain javax.imageio.spi.ServiceRegistry service registry}.
     *
     * @return The vendor for this factory implementation.
     */
    @Extension
    Citation getVendor();
}