From b48903c8aff0bafc0ce22ff704445d2d4bd34350 Mon Sep 17 00:00:00 2001
From: lanyuanxiaoyao <lanyuanxiaoyao@gmail.com>
Date: Tue, 7 Jan 2025 18:23:54 +0800
Subject: [PATCH] =?UTF-8?q?=E5=A2=9E=E5=8A=A0Listener=E7=9A=84=E8=BE=85?=
 =?UTF-8?q?=E5=8A=A9=E4=BB=A3=E7=A0=81?=
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---
 .../flowable/core/model/FlowableListener.java | 22 +++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/flowable-core/src/main/java/com/lanyuanxiaoyao/flowable/core/model/FlowableListener.java b/flowable-core/src/main/java/com/lanyuanxiaoyao/flowable/core/model/FlowableListener.java
index e22a8d5..a881cd0 100644
--- a/flowable-core/src/main/java/com/lanyuanxiaoyao/flowable/core/model/FlowableListener.java
+++ b/flowable-core/src/main/java/com/lanyuanxiaoyao/flowable/core/model/FlowableListener.java
@@ -16,4 +16,26 @@ public interface FlowableListener {
   void onAction(FlowableInstance instance, FlowableNode node, FlowableAction action);
 
   void onActionComplete(FlowableInstance instance, FlowableNode node, FlowableAction action);
+
+  abstract class AbstractFlowableListener implements FlowableListener {
+    @Override
+    public void onFlowStart(FlowableInstance instance, FlowableNode node) {
+    }
+
+    @Override
+    public void onFlowEnd(FlowableInstance instance, FlowableNode node, FlowableAction action) {
+    }
+
+    @Override
+    public void onActionStart(FlowableInstance instance, FlowableNode node, FlowableAction action) {
+    }
+
+    @Override
+    public void onAction(FlowableInstance instance, FlowableNode node, FlowableAction action) {
+    }
+
+    @Override
+    public void onActionComplete(FlowableInstance instance, FlowableNode node, FlowableAction action) {
+    }
+  }
 }