Class MVELRule

easy-rules-mvel/src/main/java/org/jeasy/rules/mvel/MVELRule.java:42–129

A org.jeasy.rules.api.Rule implementation that uses MVEL to evaluate and execute the rule. @author Mahmoud Ben Hassine (mahmoud.benhassine@icloud.com)

 * @author Mahmoud Ben Hassine (mahmoud.benhassine@icloud.com)
 */
public class MVELRule extends BasicRule {

    private Condition condition = Condition.FALSE;
    private final List<Action> actions = new ArrayList<>();
    private final ParserContext parserContext;

    /**
     * Create a new MVEL rule.
     */
    public MVELRule() {
        this(new ParserContext());
    }

    /**
     * Create a new MVEL rule.
     * 
     * @param parserContext used to parse condition/action expressions
     */
    public MVELRule(ParserContext parserContext) {
        super(Rule.DEFAULT_NAME, Rule.DEFAULT_DESCRIPTION, Rule.DEFAULT_PRIORITY);
        this.parserContext = parserContext;
    }

    /**
     * Set rule name.
     *
     * @param name of the rule
     * @return this rule
     */
    public MVELRule name(String name) {
        this.name = name;
        return this;
    }

    /**
     * Set rule description.
     *
     * @param description of the rule
     * @return this rule
     */
    public MVELRule description(String description) {
        this.description = description;
        return this;
    }

    /**
     * Set rule priority.
     *
     * @param priority of the rule
     * @return this rule
     */
    public MVELRule priority(int priority) {
        this.priority = priority;
        return this;
    }

    /**
     * Specify the rule's condition as MVEL expression.