add cron support (#232)

src/ZM/Annotation/Framework/Cron.php

@@ -0,0 +1,34 @@
+<?php
+
+declare(strict_types=1);
+
+namespace ZM\Annotation\Framework;
+
+use Cron\CronExpression;
+use Doctrine\Common\Annotations\Annotation\NamedArgumentConstructor;
+use Doctrine\Common\Annotations\Annotation\Target;
+use ZM\Annotation\AnnotationBase;
+
+/**
+ * @Annotation
+ * @NamedArgumentConstructor()
+ * @Target("METHOD")
+ */
+#[\Attribute(\Attribute::IS_REPEATABLE | \Attribute::TARGET_METHOD)]
+class Cron extends AnnotationBase
+{
+    public CronExpression $expression;
+
+    /**
+     * @param string $expression Cron 表达式
+     * @param int    $worker_id  Worker ID
+     * @param bool   $no_overlap 是否不允许重叠执行
+     */
+    public function __construct(
+        string $expression,
+        public int $worker_id = 0,
+        public bool $no_overlap = false
+    ) {
+        $this->expression = new CronExpression($expression);
+    }
+}