| Name | Description | Type | Package | Framework |
| ConditionalVisitorFieldValidator | The ConditionalVisitorFieldValidator will forward validation to the VisitorFieldValidator only if the expression will evaluate to true. | Class | com.opensymphony.xwork2.validator.validators | Apache Struts |
| ConversionErrorFieldValidator | Field Validator that checks if a conversion error occurred for this field. | Class | com.opensymphony.xwork2.validator.validators | Apache Struts |
| DateRangeFieldValidator | Field Validator that checks if the date supplied is within a specific range. | Class | com.opensymphony.xwork2.validator.validators | Apache Struts |
| DoubleRangeFieldValidator | Field Validator that checks if the double specified is within a certain range. | Class | com.opensymphony.xwork2.validator.validators | Apache Struts |
| EmailValidator | EmailValidator checks that a given String field, if not empty, is a valid email address. | Class | com.opensymphony.xwork2.validator.validators | Apache Struts |
| ExpressionValidator | A Non-Field Level validator that validates based on regular expression supplied. | Class | com.opensymphony.xwork2.validator.validators | Apache Struts |
| FieldExpressionValidator | Validates a field using an OGNL expression. | Class | com.opensymphony.xwork2.validator.validators | Apache Struts |
| FieldValidatorSupport | Base class for field validators. | Class | com.opensymphony.xwork2.validator.validators | Apache Struts |
| IntRangeFieldValidator | Field Validator that checks if the integer specified is within a certain range. | Class | com.opensymphony.xwork2.validator.validators | Apache Struts |
| LongRangeFieldValidator | Field Validator that checks if the long specified is within a certain range. | Class | com.opensymphony.xwork2.validator.validators | Apache Struts |
| RangeValidatorSupport | Base class for range based validators. | Class | com.opensymphony.xwork2.validator.validators | Apache Struts |
| RegexFieldValidator | Validates a string field using a regular expression. | Class | com.opensymphony.xwork2.validator.validators | Apache Struts |
| RepopulateConversionErrorFieldValidatorSupport | An abstract base class that adds in the capability to populate the stack with a fake parameter map when a conversion error has occurred and the 'repopulateField' | Class | com.opensymphony.xwork2.validator.validators | Apache Struts |
| RequiredFieldValidator | RequiredFieldValidator checks if the specified field is not null. | Class | com.opensymphony.xwork2.validator.validators | Apache Struts |
| RequiredStringValidator | RequiredStringValidator checks that a String field is non-null and has a length > 0. | Class | com.opensymphony.xwork2.validator.validators | Apache Struts |
| ShortRangeFieldValidator | Field Validator that checks if the short specified is within a certain range. | Class | com.opensymphony.xwork2.validator.validators | Apache Struts |
| StringLengthFieldValidator | StringLengthFieldValidator checks that a String field is of a certain length. | Class | com.opensymphony.xwork2.validator.validators | Apache Struts |
| URLValidator | URLValidator checks that a given field is a String and a valid URL | Class | com.opensymphony.xwork2.validator.validators | Apache Struts |
| ValidatorSupport | Abstract implementation of the Validator interface suitable for subclassing. | Class | com.opensymphony.xwork2.validator.validators | Apache Struts |
| VisitorFieldValidator | The VisitorFieldValidator allows you to forward validation to object properties of your action using the object's own validation files. | Class | com.opensymphony.xwork2.validator.validators | Apache Struts |
| VisitorFieldValidator .AppendingValidatorContext | Class | com.opensymphony.xwork2.validator.validators.VisitorFieldValidator | Apache Struts | |