diff --git a/src/org/redkale/service/DataSourceService.java b/src/org/redkale/service/DataSourceService.java
index d80c95851..43300f792 100644
--- a/src/org/redkale/service/DataSourceService.java
+++ b/src/org/redkale/service/DataSourceService.java
@@ -9,7 +9,6 @@ import java.io.*;
 import java.util.*;
 import javax.annotation.*;
 import org.redkale.net.sncp.*;
-import org.redkale.source.DataSource.FuncEnum;
 import org.redkale.source.*;
 import org.redkale.util.*;
 
diff --git a/src/org/redkale/source/DataSource.java b/src/org/redkale/source/DataSource.java
index 69edc5e3e..ce111bbca 100644
--- a/src/org/redkale/source/DataSource.java
+++ b/src/org/redkale/source/DataSource.java
@@ -16,16 +16,6 @@ import org.redkale.util.*;
 @SuppressWarnings("unchecked")
 public interface DataSource {
 
-    public static enum FuncEnum {
-
-        AVG, COUNT, DISTINCTCOUNT, MAX, MIN, SUM;
-
-        public String getColumn(String col) {
-            if (this == DISTINCTCOUNT) return "COUNT(DISTINCT " + col + ")";
-            return this.name() + "(" + col + ")";
-        }
-    }
-
     /**
      * 创建读连接
      *
diff --git a/src/org/redkale/source/EntityCache.java b/src/org/redkale/source/EntityCache.java
index 7f1403176..2bbe759f6 100644
--- a/src/org/redkale/source/EntityCache.java
+++ b/src/org/redkale/source/EntityCache.java
@@ -12,8 +12,7 @@ import java.util.function.*;
 import java.util.logging.*;
 import java.util.stream.Stream;
 import javax.persistence.Transient;
-import org.redkale.source.DataSource.FuncEnum;
-import static org.redkale.source.DataSource.FuncEnum.*;
+import static org.redkale.source.FuncEnum.*;
 import java.util.stream.*;
 import org.redkale.util.*;
 
diff --git a/src/org/redkale/source/FuncEnum.java b/src/org/redkale/source/FuncEnum.java
new file mode 100644
index 000000000..7f722bf69
--- /dev/null
+++ b/src/org/redkale/source/FuncEnum.java
@@ -0,0 +1,19 @@
+/*
+ * To change this license header, choose License Headers in Project Properties.
+ * To change this template file, choose Tools | Templates
+ * and open the template in the editor.
+ */
+package org.redkale.source;
+
+/**
+ *
+ * @author zhangjx
+ */
+public enum FuncEnum {
+    AVG, COUNT, DISTINCTCOUNT, MAX, MIN, SUM;
+
+    public String getColumn(String col) {
+        if (this == DISTINCTCOUNT) return "COUNT(DISTINCT " + col + ")";
+        return this.name() + "(" + col + ")";
+    }
+}