Examples of org.jfree.formula.lvalues.FormulaFunction

org.jfree.formula.lvalues.FormulaFunction
A function. Formulas consist of functions, references or static values, which are connected by operators.
Functions always have a cannonical name, which must be unique and which identifies the function. Functions can have a list of parameters. The number of parameters can vary, and not all parameters need to be filled.
Functions can have required and optional parameters. Mixing required and optional parameters is not allowed. Optional parameters cannot be ommited, unless they are the last parameter in the list.
This class provides the necessary wrapper functionality to fill in the parameters. @author Thomas Morgner

                try
                {
                    final String expression = exp.getFormulaExpression();
                    if ( expression == null)
                        continue;
                    final FormulaFunction function = (FormulaFunction) parser.parse(expression);
                    final LValue[] parameters = function.getChildValues();
                    if (parameters.length > 0)
                    {
                        String name = parameters[0].toString();
                        for (int j = 0; j < reportFunctions.length; j++)
                        {
                            if (reportFunctions[j] instanceof FormulaExpression)
                            {
                                final FormulaExpression reportExp = (FormulaExpression) reportFunctions[j];


                                if (reportExp.getName().equals(name))
                                {
                                    final LValue val = (LValue) parser.parse(reportExp.getFormulaExpression());
                                    if (val instanceof FormulaFunction)
                                    {
                                        final FormulaFunction reportFunction = (FormulaFunction) val;
                                    
                                        final ContextLookup context = (ContextLookup) reportFunction.getChildValues()[0];
                                        name = context.getName();
                                    }
                                    else if (val instanceof Term)
                                    {
                                        final Term term = (Term) val;

View Full Code Here

      jj_la1[10] = jj_gen;
      ;
    }
     if (params == null)
     {
       {if (true) return new FormulaFunction(name, new LValue[0]);}
     }


     LValue[] paramVals = (LValue[]) params.toArray(new LValue[params.size()]);
     {if (true) return new FormulaFunction(name, paramVals);}
    throw new Error("Missing return statement in function");
  }

View Full Code Here

    }
     if (params == null)
     {
       {if (true)
       {
         return new FormulaFunction(name, new LValue[0]);
       }
       }
     }


     final LValue[] paramVals = (LValue[]) params.toArray(new LValue[params.size()]);
     {if (true)
     {
       return new FormulaFunction(name, paramVals);
     }
     }
    throw new Error("Missing return statement in function");
  }

View Full Code Here

TOP

Related Classes of org.jfree.formula.lvalues.FormulaFunction

com.sun.star.report.pentaho.PentahoReportJob

org.jfree.formula.FormulaContext

org.jfree.formula.function.FunctionRegistry

org.jfree.formula.parser.GeneratedFormulaParser

org.jfree.formula.typing.Type

org.jfree.formula.typing.TypeRegistry

org.jfree.formula.EvaluationException

All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.