/*
* Copyright (c) 2002-2006 by OpenSymphony
* All rights reserved.
*/
package com.opensymphony.xwork2.validator.validators;
import com.opensymphony.xwork2.validator.ValidationException;
/**
* Base class for range based validators.
*
* @author Jason Carreira
* @author Cameron Braid
*/
public abstract class AbstractRangeValidator extends FieldValidatorSupport {
public void validate(Object object) throws ValidationException {
Object obj = getFieldValue(getFieldName(), object);
Comparable value = (Comparable) obj;
// if there is no value - don't do comparison
// if a value is required, a required validator should be added to the field
if (value == null) {
return;
}
// only check for a minimum value if the min parameter is set
if ((getMinComparatorValue() != null) && (value.compareTo(getMinComparatorValue()) < 0)) {
addFieldError(getFieldName(), object);
}
// only check for a maximum value if the max parameter is set
if ((getMaxComparatorValue() != null) && (value.compareTo(getMaxComparatorValue()) > 0)) {
addFieldError(getFieldName(), object);
}
}
protected abstract Comparable getMaxComparatorValue();
protected abstract Comparable getMinComparatorValue();
}
|