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 * without modification, are permitted provided that the following conditions are met:
 *
 * 1. Redistributions of source code must retain copyright statements and notices. Redistributions
 * must also contain a copy of this document.
 *
 * 2. Redistributions in binary form must reproduce the above copyright notice, this list of
 * conditions and the following disclaimer in the documentation and/or other materials provided with
 * the distribution.
 *
 * 3. The name "Exolab" must not be used to endorse or promote products derived from this Software
 * without prior written permission of Intalio, Inc. For written permission, please contact
 * info@exolab.org.
 *
 * 4. Products derived from this Software may not be called "Exolab" nor may "Exolab" appear in
 * their names without prior written permission of Intalio, Inc. Exolab is a registered trademark of
 * Intalio, Inc.
 *
 * 5. Due credit should be given to the Exolab Project (http://www.exolab.org/).
 *
 * THIS SOFTWARE IS PROVIDED BY INTALIO, INC. AND CONTRIBUTORS ``AS IS'' AND ANY EXPRESSED OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
 * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL INTALIO, INC. OR ITS
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 * WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 * Copyright 1999-2000 (C) Intalio Inc. All Rights Reserved.
 *
 * $Id$
 */

package org.exolab.castor.xml.schema.simpletypes;

import org.exolab.castor.xml.schema.Facet;
import org.exolab.castor.xml.schema.SimpleType;

/**
 * The base class for built-in atomic Schema types
 * 
 * @author <a href="mailto:berry@intalio.com">Arnaud Berry</a>
 * @version $Revision:
 **/
public abstract class AtomicType extends SimpleType {

  /**
   * Gets the pattern facet returns null if there is none
   **/
  String getPattern() {
    Facet patternFacet = getFacet(Facet.PATTERN);
    if (patternFacet == null)
      return null;
    return patternFacet.getValue();
  }

  /**
   * Tells if the minimum is inclusive or not Has no meaning if there is no minInclusive/Exclusive
   * facet
   **/
  public boolean isMinInclusive() {
    return (getFacet(Facet.MIN_INCLUSIVE) != null);
  }

  /**
   * Tells if the maximum is inclusive or not Has no meaning if there is no maxInclusive/Exclusive
   * facet
   **/
  public boolean isMaxInclusive() {
    return (getFacet(Facet.MAX_INCLUSIVE) != null);
  }

  /**
   * Gets the MIN_INCLUSIVE facet or the MIN_EXCLUSIVE facet (both are never defined at the same
   * time) returns null if there is no minimum
   **/
  Facet getMin() {
    Facet minInclusiveFacet = getFacet(Facet.MIN_INCLUSIVE);
    if (minInclusiveFacet != null)
      return minInclusiveFacet;

    Facet minExclusiveFacet = getFacet(Facet.MIN_EXCLUSIVE);
    if (minExclusiveFacet != null)
      return minExclusiveFacet;

    return null;
  }

  /**
   * Gets the MAX_INCLUSIVE facet or the MAX_EXCLUSIVE facet (both are never defined at the same
   * time) returns null if there is no maximum
   **/
  Facet getMax() {
    Facet maxInclusiveFacet = getFacet(Facet.MAX_INCLUSIVE);
    if (maxInclusiveFacet != null)
      return maxInclusiveFacet;

    Facet maxExclusiveFacet = getFacet(Facet.MAX_EXCLUSIVE);
    if (maxExclusiveFacet != null)
      return maxExclusiveFacet;

    return null;
  }
}


