Tell Me The Example Of Username Validation In Apache-wicket?

1.	Tell Me The Example Of Username Validation In Apache-wicket?
Answer» import org.apache.wicket.validation.CompoundValidator; import org.apache.wicket.validation.validator.PatternValidator; import org.apache.wicket.validation.validator.StringValidator; public CLASS UsernameValidator EXTENDS CompoundValidator<String> { private static FINAL long serialVersionUID = 1L; public UsernameValidator() { add(StringValidator.lengthBetween(6, 15)); add(new PatternValidator("[a-z0-9_-]+")); } } import org.apache.wicket.validation.CompoundValidator; import org.apache.wicket.validation.validator.PatternValidator; import org.apache.wicket.validation.validator.StringValidator; public class UsernameValidator extends CompoundValidator<String> { private static final long serialVersionUID = 1L; public UsernameValidator() { add(StringValidator.lengthBetween(6, 15)); add(new PatternValidator("[a-z0-9_-]+")); } }

Answer»

import org.apache.wicket.validation.CompoundValidator;

import org.apache.wicket.validation.validator.PatternValidator;

import org.apache.wicket.validation.validator.StringValidator;

public CLASS UsernameValidator EXTENDS CompoundValidator<String> {

private static FINAL long serialVersionUID = 1L;

public UsernameValidator() {

add(StringValidator.lengthBetween(6, 15));

add(new PatternValidator("[a-z0-9_-]+"));

}

import org.apache.wicket.validation.CompoundValidator;

import org.apache.wicket.validation.validator.PatternValidator;

import org.apache.wicket.validation.validator.StringValidator;

public class UsernameValidator extends CompoundValidator<String> {

private static final long serialVersionUID = 1L;

public UsernameValidator() {

add(StringValidator.lengthBetween(6, 15));

add(new PatternValidator("[a-z0-9_-]+"));

}

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