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}.")},
longRangeFields =
{ @LongRangeFieldValidator(type = ValidatorType.SIMPLE, fieldName = "intfield", min = "6", max = "10", message = "bar must be between ${min} and ${max}, current value is ${bar}.")},
shortRangeFields =
{ @ShortRangeFieldValidator(type = ValidatorType.SIMPLE, fieldName = "shortfield", min = "1", max = "128", 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="actionFileUpload"/>
<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>