diff --git a/spring-data-jdbc/src/main/java/com/currenjin/jdbc/callback/ConnectionCallback.java b/spring-data-jdbc/src/main/java/com/currenjin/jdbc/callback/ConnectionCallback.java
new file mode 100644
index 0000000..1eaaae1
--- /dev/null
+++ b/spring-data-jdbc/src/main/java/com/currenjin/jdbc/callback/ConnectionCallback.java
@@ -0,0 +1,8 @@
+package com.currenjin.jdbc.callback;
+
+import java.sql.Connection;
+import java.sql.SQLException;
+
+public interface ConnectionCallback<T> {
+	T doInConnection(Connection connection) throws SQLException;
+}
diff --git a/spring-data-jdbc/src/main/java/com/currenjin/jdbc/callback/ResultSetCallback.java b/spring-data-jdbc/src/main/java/com/currenjin/jdbc/callback/ResultSetCallback.java
new file mode 100644
index 0000000..28192fd
--- /dev/null
+++ b/spring-data-jdbc/src/main/java/com/currenjin/jdbc/callback/ResultSetCallback.java
@@ -0,0 +1,8 @@
+package com.currenjin.jdbc.callback;
+
+import java.sql.ResultSet;
+import java.sql.SQLException;
+
+public interface ResultSetCallback<T> {
+	T doInResultSet(ResultSet rs) throws SQLException;
+}
diff --git a/spring-data-jdbc/src/main/java/com/currenjin/jdbc/callback/StatementCallback.java b/spring-data-jdbc/src/main/java/com/currenjin/jdbc/callback/StatementCallback.java
new file mode 100644
index 0000000..0b741d8
--- /dev/null
+++ b/spring-data-jdbc/src/main/java/com/currenjin/jdbc/callback/StatementCallback.java
@@ -0,0 +1,8 @@
+package com.currenjin.jdbc.callback;
+
+import java.sql.SQLException;
+import java.sql.Statement;
+
+public interface StatementCallback<T> {
+	T doInStatement(Statement statement) throws SQLException;
+}