//$Id: LengthValidator.java 15133 2008-08-20 10:05:57Z hardy.ferentschik $
package org.hibernate.validator;
import java.io.Serializable;
import org.hibernate.mapping.Column;
import org.hibernate.mapping.Property;
/**
* Do check a length restriction on a string, and apply expected contraints on hibernate metadata.
*
* @author Gavin King
*/
public class LengthValidator implements Validator<Length>, PropertyConstraint, Serializable {
private int max;
private int min;
public void initialize(Length parameters) {
max = parameters.max();
min = parameters.min();
}
public boolean isValid(Object value) {
if ( value == null ) return true;
if ( !( value instanceof String ) ) return false;
String string = (String) value;
int length = string.length();
return length >= min && length <= max;
}
public void apply(Property property) {
Column col = (Column) property.getColumnIterator().next();
if ( max < Integer.MAX_VALUE ) col.setLength( max );
}
}