From ae27141feab9c833f82ff88e370cd052231fbbf1 Mon Sep 17 00:00:00 2001
From: LamGC <lam827@lamgc.net>
Date: Sun, 19 Apr 2020 01:00:52 +0800
Subject: [PATCH] =?UTF-8?q?[Add]=20MessageSender=20=E5=A2=9E=E5=8A=A0?=
 =?UTF-8?q?=E6=B6=88=E6=81=AF=E5=8F=91=E9=80=81=E5=99=A8=E6=8E=A5=E5=8F=A3?=
 =?UTF-8?q?;=20[Change]=20MessageEvent=20=E5=AE=9E=E7=8E=B0=20MessageSende?=
 =?UTF-8?q?r=20=E6=8E=A5=E5=8F=A3;?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../java/net/lamgc/cgj/bot/MessageSender.java     | 15 +++++++++++++++
 .../net/lamgc/cgj/bot/event/MessageEvent.java     |  4 +++-
 2 files changed, 18 insertions(+), 1 deletion(-)
 create mode 100644 src/main/java/net/lamgc/cgj/bot/MessageSender.java

diff --git a/src/main/java/net/lamgc/cgj/bot/MessageSender.java b/src/main/java/net/lamgc/cgj/bot/MessageSender.java
new file mode 100644
index 0000000..c6e9003
--- /dev/null
+++ b/src/main/java/net/lamgc/cgj/bot/MessageSender.java
@@ -0,0 +1,15 @@
+package net.lamgc.cgj.bot;
+
+public interface MessageSender {
+
+    /**
+     * 发送消息并返回消息id
+     * @param message 消息内容
+     * @return 返回非负数则发送成功,
+     *          返回0则发送器不支持消息Id,
+     *          返回非0正整数则为消息Id,
+     *          返回负数则为错误.
+     */
+    int sendMessage(final String message);
+
+}
diff --git a/src/main/java/net/lamgc/cgj/bot/event/MessageEvent.java b/src/main/java/net/lamgc/cgj/bot/event/MessageEvent.java
index 0e896c0..99c46bd 100644
--- a/src/main/java/net/lamgc/cgj/bot/event/MessageEvent.java
+++ b/src/main/java/net/lamgc/cgj/bot/event/MessageEvent.java
@@ -1,8 +1,9 @@
 package net.lamgc.cgj.bot.event;
 
+import net.lamgc.cgj.bot.MessageSender;
 import net.lamgc.utils.event.EventObject;
 
-public abstract class MessageEvent implements EventObject {
+public abstract class MessageEvent implements EventObject, MessageSender {
 
     private final long fromGroup;
     private final long fromQQ;
@@ -19,6 +20,7 @@ public abstract class MessageEvent implements EventObject {
      * @param message 消息内容
      * @return 成功返回MessageId, 如没有MessageId则返回0, 失败返回负数错误码
      */
+    @Override
     public abstract int sendMessage(final String message);
 
     /**