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Fabric3 Contribution Scanner Implementation.

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/*
 * Fabric3
 * Copyright ? 2008 Metaform Systems Limited
 *
 * This proprietary software may be used only connection with the Fabric3 license
 * (the ?License?), a copy of which is included in the software or may be
 * obtained at: http://www.metaformsystems.com/licenses/license.html.

 * Software distributed under the License is distributed on an ?as is? basis,
 * without warranties or conditions of any kind.  See the License for the
 * specific language governing permissions and limitations of use of the software.
 * This software is distributed in conjunction with other software licensed under
 * different terms.  See the separate licenses for those programs included in the
 * distribution for the permitted and restricted uses of such software.
 *
 */
package org.fabric3.scanner.spi;

/**
 * Provides metadata for a FileSystemResource that has been sent to a DirectoryScannerDestination
 *
 * @version $Rev: 6392 $ $Date: 2009-01-02 14:22:06 -0800 (Fri, 02 Jan 2009) $
 */
public interface ResourceMetaData {

    /**
     * Returns the last-updated artifact checksum.
     *
     * @return the last-updated artifact checksum
     */
    byte[] getChecksum();

    /**
     * Returns the last-updated artifact timestamp.
     *
     * @return the last-updated artifact timestamp
     */
    long getTimestamp();
}