package org.gcube.accounting.datamodel.validators;

import java.io.Serializable;

import org.gcube.accounting.datamodel.annotations.NotNull;
import org.gcube.accounting.exception.InvalidValueException;


public class NotNullValidator implements FieldValidator<NotNull>{

	public Class<NotNull> annotation() {
		return NotNull.class;
	}

	public boolean isValid(Serializable toValidate) {
		return toValidate!=null;
	}
	
	public Serializable validate(Serializable toValidate) throws InvalidValueException {
		if(isValid(toValidate)){
			return toValidate;
		}
		throw new InvalidValueException(getErrorSuffix());
	}
	
	public String getErrorSuffix() {
		return "is null";
	}

}