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Re: InstantDB: HELP URGENT


here it is, you just need to compile it
it's called value() and returns a double

 jp

>

package org.enhydra.instantdb.db;

import org.enhydra.instantdb.db.SqlFunction;
import java.sql.SQLException;


class value implements SqlFunction {
  String usage = "value requires a single string parameter";

 public int checkParameters (int[] parameterTypes) throws SQLException {
  int paramCount = parameterTypes.length;    // get number of parameters
  if (paramCount != 1) {        // check parameter count
   throw new SQLException (usage);
  }
  return TYPE_DOUBLE;         // our return type
 }

 public void setSpecialValue (int type, Object value) throws SQLException {
 } // setSpecialValue

 public Object getSpecialValue (int type) throws SQLException {
  return null;
 } // getSpecialValue


 public Object evaluate(Object[] parameters) throws SQLException {
  String tString = (String)parameters[0];
  double tDbl = 0;
  try {
   tDbl =Double.parseDouble(tString);
  } catch (NumberFormatException nfe) {

  }
  Double tDouble = new Double(tDbl);
  return tDouble;
 }
}

--
-[ ]-/\-( )---------------------------------------EasternGraphics-------

Jens Panse

http://www.EasternGraphics.com
phone:            03677 678267
private:     jens.panse@gmx.de


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