diff --git a/build.gradle b/build.gradle
index 4f6f64e..6e13f1b 100644
--- a/build.gradle
+++ b/build.gradle
@@ -52,7 +52,7 @@ dependencies {
     testImplementation 'junit:junit:4.13.2'
 }
 group = "org.bdware.sc"
-version = "1.5.6"
+version = "1.5.8"
 tasks.processResources.setDuplicatesStrategy(DuplicatesStrategy.INCLUDE)
 
 task copyLibs(type: Copy) {
diff --git a/src/main/entry/org/bdware/sc/bean/JoinInfo.java b/src/main/entry/org/bdware/sc/bean/JoinInfo.java
index 6cfe8d7..95900a4 100644
--- a/src/main/entry/org/bdware/sc/bean/JoinInfo.java
+++ b/src/main/entry/org/bdware/sc/bean/JoinInfo.java
@@ -7,12 +7,14 @@ import org.bdware.sc.util.JsonUtil;
 import java.io.Serializable;
 
 public class JoinInfo implements Serializable {
-    public String joinRule;
+    public DefaultJoinRule useDefault;
+    public String joinFuncName;
     public int joinCount;
+    public String joinCountFuncName;
 
     public static JoinInfo create(AnnotationNode annotationNode, ContractNode contractNode) {
         JoinInfo info = new JoinInfo();
-        info.joinRule = null;
+        info.useDefault = null;
         if (annotationNode.getArgs().size() == 1) {
             String str = annotationNode.getArgs().get(0);
             info = JsonUtil.fromJson(str, JoinInfo.class);
diff --git a/src/main/entry/org/bdware/sc/bean/RouteInfo.java b/src/main/entry/org/bdware/sc/bean/RouteInfo.java
index b923ebb..674f093 100644
--- a/src/main/entry/org/bdware/sc/bean/RouteInfo.java
+++ b/src/main/entry/org/bdware/sc/bean/RouteInfo.java
@@ -8,7 +8,8 @@ import java.io.Serializable;
 
 public class RouteInfo implements Serializable {
     public DefaultRouteRule useDefault;
-
+    // The signature of RouteFunction is
+    // function myFunc(requester, sourceArg)
     public String funcName;
 
     public static RouteInfo create(AnnotationNode annotationNode, ContractNode contractNode) {