package caltool.model;

/****
 *
 * Interface PrecondViolation defines the methods that all precondition
 * violation exceptions should implement.
 *
 */
public interface PrecondViolation {

    /**
     * Return the concrete error list for precondtion violation.  Each position
     * in the list corresponds to violation of a particular precondition
     * clause.
     */
    public String[] getErrors();

    /**
     * Clear out all of the error messages in this.
     */
    public void clear();

    /**
     * Return true if one or more error messages has been set.
     */
    public boolean anyErrors();

    /**
     * Return the number of error messages.
     */
    public int numberOfErrors();

}