public class RequiredStringValidator extends FieldValidatorSupport
trim
the String before performing the length check. If unspecified, the String will be trimmed.
<validators>
<!-- Plain-Validator Syntax -->
<validator type="requiredstring">
<param name="fieldName">username</param>
<param name="trim">true</param>
<message>username is required</message>
</validator>
<!-- Field-Validator Syntax -->
<field name="username">
<field-validator type="requiredstring">
<param name="trim">true</param>
<message>username is required</message>
</field-validator>
</field>
<!-- Field-Validator Syntax with expression -->
<field name="username">
<field-validator type="requiredstring">
<param name="trimExpression">${trimValue}</param> <!-- will be evaluated as: boolean getTrimValue() -->
<message>username is required</message>
</field-validator>
</field>
</validators>
currentValue, fieldName, typedefaultMessage, EMPTY_STRING, messageKey, stack, textProviderFactory| Constructor and Description |
|---|
RequiredStringValidator() |
| Modifier and Type | Method and Description |
|---|---|
boolean |
isTrim() |
void |
setTrim(boolean trim) |
void |
setTrimExpression(String trimExpression) |
void |
validate(Object object)
The validation implementation must guarantee that setValidatorContext will
be called with a non-null ValidatorContext before validate is called.
|
protected void |
validateValue(Object object,
Object fieldValue) |
getCurrentValue, getFieldName, getValidatorType, setFieldName, setValidatorTypeaddActionError, addFieldError, getDefaultMessage, getFieldValue, getMessage, getMessageKey, getMessageParameters, getValidatorContext, isShortCircuit, parse, setDefaultMessage, setMessageKey, setMessageParameters, setShortCircuit, setTextProviderFactory, setValidatorContext, setValueStackclone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, waitgetDefaultMessage, getMessage, getMessageKey, getMessageParameters, getValidatorContext, setDefaultMessage, setMessageKey, setMessageParameters, setValidatorContext, setValueStackpublic void setTrim(boolean trim)
public void setTrimExpression(String trimExpression)
public boolean isTrim()
public void validate(Object object) throws ValidationException
Validatorobject - the object to be validated.ValidationException - is thrown if there is validation error(s).Copyright © 2000–2021 Apache Software Foundation. All rights reserved.