001    /**
002     * =========================================
003     * LibFormula : a free Java formula library
004     * =========================================
005     *
006     * Project Info:  http://reporting.pentaho.org/libformula/
007     *
008     * (C) Copyright 2006-2007, by Pentaho Corporation and Contributors.
009     *
010     * This library is free software; you can redistribute it and/or modify it under the terms
011     * of the GNU Lesser General Public License as published by the Free Software Foundation;
012     * either version 2.1 of the License, or (at your option) any later version.
013     *
014     * This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
015     * without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
016     * See the GNU Lesser General Public License for more details.
017     *
018     * You should have received a copy of the GNU Lesser General Public License along with this
019     * library; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
020     * Boston, MA 02111-1307, USA.
021     *
022     * [Java is a trademark or registered trademark of Sun Microsystems, Inc.
023     * in the United States and other countries.]
024     *
025     *
026     * ------------
027     * $Id: NaFunctionDescription.java 3521 2007-10-16 10:55:14Z tmorgner $
028     * ------------
029     * (C) Copyright 2006-2007, by Pentaho Corporation.
030     */
031    package org.jfree.formula.function.information;
032    
033    import org.jfree.formula.function.AbstractFunctionDescription;
034    import org.jfree.formula.function.FunctionCategory;
035    import org.jfree.formula.typing.Type;
036    import org.jfree.formula.typing.coretypes.ErrorType;
037    
038    
039    public class NaFunctionDescription extends AbstractFunctionDescription
040    {
041    
042      public NaFunctionDescription()
043      {
044        super("org.jfree.formula.function.information.Na-Function");
045      }
046    
047      public FunctionCategory getCategory()
048      {
049        return InformationFunctionCategory.CATEGORY;
050      }
051    
052      public int getParameterCount()
053      {
054        return 0;
055      }
056    
057      public Type getParameterType(final int position)
058      {
059        return null;
060      }
061    
062      public Type getValueType()
063      {
064        return ErrorType.TYPE;
065      }
066    
067      public boolean isParameterMandatory(final int position)
068      {
069        return false;
070      }
071    
072    }