Validations Annotation

If you want to use several annotations of the same type, these annotations must be nested within the @Validations() annotation.

Usage

Used at METHOD level.

Parameters

Parameter	Required	Notes
requiredFields	no	Add list of RequiredFieldValidators
customValidators	no	Add list of CustomValidators
conversionErrorFields	no	Add list of ConversionErrorFieldValidators
dateRangeFields	no	Add list of DateRangeFieldValidators
emails	no	Add list of EmailValidators
fieldExpressions	no	Add list of FieldExpressionValidators
intRangeFields	no	Add list of IntRangeFieldValidators
requiredStrings	no	Add list of RequiredStringValidators
stringLengthFields	no	Add list of StringLengthFieldValidators
urls	no	Add list of UrlValidators
visitorFields	no	Add list of VisitorFieldValidators
regexFields	no	Add list of RegexFieldValidator
expressions	no	Add list of ExpressionValidator

Examples

@Validations(
          requiredFields =
                  {@RequiredFieldValidator(type = ValidatorType.SIMPLE, fieldName = "customfield", message = "You must enter a value for field.")},
          requiredStrings =
                  {@RequiredStringValidator(type = ValidatorType.SIMPLE, fieldName = "stringisrequired", message = "You must enter a value for string.")},
          emails =
                  { @EmailValidator(type = ValidatorType.SIMPLE, fieldName = "emailaddress", message = "You must enter a value for email.")},
          urls =
                  { @UrlValidator(type = ValidatorType.SIMPLE, fieldName = "hreflocation", message = "You must enter a value for email.")},
          stringLengthFields =
                  {@StringLengthFieldValidator(type = ValidatorType.SIMPLE, trim = true, minLength="10" , maxLength = "12", fieldName = "needstringlength", message = "You must enter a stringlength.")},
          intRangeFields =
                  { @IntRangeFieldValidator(type = ValidatorType.SIMPLE, fieldName = "intfield", min = "6", max = "10", message = "bar must be between ${min} and ${max}, current value is ${bar}.")},
          dateRangeFields =
                  {@DateRangeFieldValidator(type = ValidatorType.SIMPLE, fieldName = "datefield", min = "-1", max = "99", message = "bar must be between ${min} and ${max}, current value is ${bar}.")},
          expressions = {
              @ExpressionValidator(expression = "foo > 1", message = "Foo must be greater than Bar 1. Foo = ${foo}, Bar = ${bar}."),
              @ExpressionValidator(expression = "foo > 2", message = "Foo must be greater than Bar 2. Foo = ${foo}, Bar = ${bar}."),
              @ExpressionValidator(expression = "foo > 3", message = "Foo must be greater than Bar 3. Foo = ${foo}, Bar = ${bar}."),
              @ExpressionValidator(expression = "foo > 4", message = "Foo must be greater than Bar 4. Foo = ${foo}, Bar = ${bar}."),
              @ExpressionValidator(expression = "foo > 5", message = "Foo must be greater than Bar 5. Foo = ${foo}, Bar = ${bar}.")
  }
  )
  public String execute() throws Exception {
      return SUCCESS;
  }

Different validations per method

Different validations per method is NOT supported for client-side validation!

To use different validations per method, the validateAnnotatedMethodOnly property must be set on the validation interceptor.

<interceptor-ref name="validation">
  <param name="validateAnnotatedMethodOnly">true</param>                
  <param name="excludeMethods">input,back,cancel,browse</param>
</interceptor-ref>

Here's a complete example of updating the default stack:

  <package name="default" extends="struts-default">
    <interceptors>
      <interceptor-stack name="content">
        <interceptor-ref name="exception"/>
                <interceptor-ref name="alias"/>
                <interceptor-ref name="servletConfig"/>
                <interceptor-ref name="prepare"/>
                <interceptor-ref name="i18n"/>
                <interceptor-ref name="chain"/>
                <interceptor-ref name="debugging"/>
                <interceptor-ref name="profiling"/>
                <interceptor-ref name="scopedModelDriven"/>
                <interceptor-ref name="modelDriven"/>
                <interceptor-ref name="fileUpload"/>
                <interceptor-ref name="checkbox"/>
                <interceptor-ref name="staticParams"/>
                <interceptor-ref name="params">
                  <param name="excludeParams">dojo\..*</param>
                </interceptor-ref>
                <interceptor-ref name="conversionError"/>
                <interceptor-ref name="validation">
  	            <param name="validateAnnotatedMethodOnly">true</param>                
                    <param name="excludeMethods">input,back,cancel,browse</param>
                </interceptor-ref>
                <interceptor-ref name="workflow">
                    <param name="excludeMethods">input,back,cancel,browse</param>
                </interceptor-ref>
      </interceptor-stack>
    </interceptors>
    <default-interceptor-ref name="default"/>
  </package>
</struts>