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Core module for jpm

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package jpaoletti.jpm.validator;

import jpaoletti.jpm.core.PMContext;
import jpaoletti.jpm.core.message.MessageFactory;

/**Validate that the specified field is not null
 * 
 * Simple entity configuration file
 *  * {@code
 * 
 *     some_id
 *     ....
 *     
 * 
 * }
 * 
 * @author jpaoletti
 * */
public class NotNull extends ValidatorSupport {

    /**The validation method*/
    @Override
    public ValidationResult validate(PMContext ctx) {
        final ValidationResult res = new ValidationResult();
        final Object fieldvalue = ctx.getFieldValue();
        res.setSuccessful(fieldvalue != null);
        if (!res.isSuccessful()) {
            res.getMessages().add(MessageFactory.error(
                    ctx.getEntity(), ctx.getField(),
                    get("msg", "pm.validator.not.null"),
                    ctx.getField().getId()));
        }
        return res;
    }
}