Source for org.jfree.formula.function.userdefined.MappedFunction

   1: /**
   2:  * =========================================
   3:  * LibFormula : a free Java formula library
   4:  * =========================================
   5:  *
   6:  * Project Info:  http://reporting.pentaho.org/libformula/
   7:  *
   8:  * (C) Copyright 2006-2007, by Pentaho Corporation and Contributors.
   9:  *
  10:  * This library is free software; you can redistribute it and/or modify it under the terms
  11:  * of the GNU Lesser General Public License as published by the Free Software Foundation;
  12:  * either version 2.1 of the License, or (at your option) any later version.
  13:  *
  14:  * This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
  15:  * without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  16:  * See the GNU Lesser General Public License for more details.
  17:  *
  18:  * You should have received a copy of the GNU Lesser General Public License along with this
  19:  * library; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
  20:  * Boston, MA 02111-1307, USA.
  21:  *
  22:  * [Java is a trademark or registered trademark of Sun Microsystems, Inc.
  23:  * in the United States and other countries.]
  24:  *
  25:  *
  26:  * ------------
  27:  * $Id: MappedFunction.java,v 1.4 2007/04/01 13:51:53 taqua Exp $
  28:  * ------------
  29:  * (C) Copyright 2006-2007, by Pentaho Corporation.
  30:  */
  31: package org.jfree.formula.function.userdefined;
  32: 
  33: import org.jfree.formula.FormulaContext;
  34: import org.jfree.formula.function.Function;
  35: import org.jfree.formula.function.ParameterCallback;
  36: import org.jfree.formula.lvalues.TypeValuePair;
  37: 
  38: /**
  39:  * A function, that calls a method on a java class. The class is reinstantiated
  40:  * each time the function is called (unless the method is static).
  41:  *
  42:  * @author Thomas Morgner
  43:  */
  44: public class MappedFunction implements Function
  45: {
  46:   private String className;
  47:   private String functionName;
  48: 
  49:   public MappedFunction()
  50:   {
  51:   }
  52: 
  53:   public String getClassName()
  54:   {
  55:     return className;
  56:   }
  57: 
  58:   public String getCanonicalName()
  59:   {
  60:     return functionName;
  61:   }
  62: 
  63:   public TypeValuePair evaluate(FormulaContext context,
  64:                                 ParameterCallback parameters)
  65:   {
  66:     return null;
  67:   }
  68: 
  69:   public Object clone() throws CloneNotSupportedException
  70:   {
  71:     return super.clone();
  72:   }
  73: }