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Old September 24th, 2007, 07:16 AM
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Location: Bangalore, Karnataka, India.
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Default Validation using Validation Framework

Hi Experts,

  I am facing a problem with Validation Framework. Could you solve my problem. I want to validate a field in which the entered value should not be a negative number.
For Example: if i enter -1 or -2 it should give a validation message. Please give me solution with an example. I tried with min but no use. Thanks in Advance.

Thanks,
Kalyan.

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Old January 2nd, 2008, 06:53 AM
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Default

hi kalyan,

for the same thing i have worked on this couple of weeks back. you need to implement u r own validation rule for this negative integer not to accept . for that u need to write code in validation-rues.xml file,validation.xml and java class for supporting condition. here is the code for u r reference.
        </validator>

   <validator name="myNegativeIf"
                      classname="com.oomc.servicing.icar.web.validator.M yFieldChecks"
                         method="myNegativeIf"
                   methodParams="java.lang.Object,
                                 org.apache.commons.validator.ValidatorAction,
                                 org.apache.commons.validator.Field,
                                 org.apache.struts.action.ActionErrors,
                                 javax.servlet.http.HttpServletRequest"
                        depends=""
                            msg="errors.myNegativeIf">

                   <javascript>

                   </javascript>

            </validator>



 <field property="contract.contractDefault.thresholdAmount "
                   depends="myNegativeIf,integer">

                <arg0 key="label.contract.threshholdAmount"/>

            </field>





   // Negative number validation added by vimal 12/18/2007
    public static boolean myNegativeIf(
       Object bean,
       ValidatorAction va,
       Field field,
       ActionErrors errors,
       HttpServletRequest request ) {


       String value = ValidatorUtil.getValueAsString(bean, field.getProperty());
        int value1=0;
      try{
        value1= Integer.parseInt(value);
      }
         catch (Exception e) {
         }

      // System.out.println("Value if int not negative is "+value1);
  // System.out.println("value = " + value + "XXXXX");

       //String sProperty2 = field.getVarValue("secondProperty");
       //String value2 = ValidatorUtil.getValueAsString(bean, sProperty2);
  // System.out.println("value2 = " + value2 + "YYYYY");


  if (!GenericValidator.isBlankOrNull(value)) {

          try{
               if (value1 < 0) {

                  errors.add(field.getKey(),Resources.getActionError (request, va, field));
                  return false;
               }

          } catch (Exception e) {
             errors.add(field.getKey(),Resources.getActionError (request, va, field));
             return false;
          }

       }
       return true;

    }


Thanks& Regards,
VimalSagar
vimal.y@gmail.com

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