diff --git a/sharding-core/src/main/java/io/shardingsphere/core/executor/ShardingExecuteEngine.java b/sharding-core/src/main/java/io/shardingsphere/core/executor/ShardingExecuteEngine.java
index 3e2f8ad1a53f5..b229acac25464 100644
--- a/sharding-core/src/main/java/io/shardingsphere/core/executor/ShardingExecuteEngine.java
+++ b/sharding-core/src/main/java/io/shardingsphere/core/executor/ShardingExecuteEngine.java
@@ -54,7 +54,7 @@ public ShardingExecuteEngine(final int executorSize) {
     }
     
     /**
-     * Execute all callbacks.
+     * Execute.
      *
      * @param inputs input values
      * @param callback sharding execute callback
@@ -68,7 +68,7 @@ public <I, O> List<O> execute(final Collection<I> inputs, final ShardingExecuteC
     }
     
     /**
-     * Execute all callbacks.
+     * Execute.
      *
      * @param inputs input values
      * @param firstCallback first sharding execute callback
@@ -120,7 +120,7 @@ private <O> List<O> getResults(final O firstResult, final Collection<ListenableF
     }
     
     /**
-     * execute all callbacks for group.
+     * Execute for group.
      *
      * @param inputGroups input groups
      * @param callback sharding execute callback
@@ -134,7 +134,7 @@ public <I, O> List<O> groupExecute(final Collection<ShardingExecuteGroup<I>> inp
     }
     
     /**
-     * execute all callbacks for group.
+     * Execute for group.
      *
      * @param inputGroups input groups
      * @param callback sharding execute callback
diff --git a/sharding-core/src/main/java/io/shardingsphere/core/executor/ShardingGroupExecuteCallback.java b/sharding-core/src/main/java/io/shardingsphere/core/executor/ShardingGroupExecuteCallback.java
index 861fac925cde8..5004ef1a4cee0 100644
--- a/sharding-core/src/main/java/io/shardingsphere/core/executor/ShardingGroupExecuteCallback.java
+++ b/sharding-core/src/main/java/io/shardingsphere/core/executor/ShardingGroupExecuteCallback.java
@@ -25,8 +25,8 @@
  * 
  * @author zhangliang
  * 
- * @param <I> type of input value
- * @param <O> type of output value
+ * @param <I> type of inputs value
+ * @param <O> type of outputs value
  */
 public interface ShardingGroupExecuteCallback<I, O> {
     
diff --git a/sharding-core/src/main/java/io/shardingsphere/core/executor/sql/execute/SQLExecuteTemplate.java b/sharding-core/src/main/java/io/shardingsphere/core/executor/sql/execute/SQLExecuteTemplate.java
index c1f10a14c8a8a..b941e9e08a4f6 100644
--- a/sharding-core/src/main/java/io/shardingsphere/core/executor/sql/execute/SQLExecuteTemplate.java
+++ b/sharding-core/src/main/java/io/shardingsphere/core/executor/sql/execute/SQLExecuteTemplate.java
@@ -47,13 +47,13 @@ public final class SQLExecuteTemplate {
      * Execute.
      *
      * @param executeUnits execute units
-     * @param executeCallback execute callback
+     * @param callback execute callback
      * @param <T> class type of return value
      * @return execute result
      * @throws SQLException SQL exception
      */
-    public <T> List<T> execute(final Collection<? extends StatementExecuteUnit> executeUnits, final SQLExecuteCallback<T> executeCallback) throws SQLException {
-        return execute(executeUnits, null, executeCallback);
+    public <T> List<T> execute(final Collection<? extends StatementExecuteUnit> executeUnits, final SQLExecuteCallback<T> callback) throws SQLException {
+        return execute(executeUnits, null, callback);
     }
     
     /**
@@ -61,18 +61,18 @@ public <T> List<T> execute(final Collection<? extends StatementExecuteUnit> exec
      *
      * @param executeUnits execute units
      * @param firstExecuteCallback first execute callback
-     * @param executeCallback execute callback
+     * @param callback execute callback
      * @param <T> class type of return value
      * @return execute result
      * @throws SQLException SQL exception
      */
     @SuppressWarnings("unchecked")
     public <T> List<T> execute(final Collection<? extends StatementExecuteUnit> executeUnits,
-                               final SQLExecuteCallback<T> firstExecuteCallback, final SQLExecuteCallback<T> executeCallback) throws SQLException {
+                               final SQLExecuteCallback<T> firstExecuteCallback, final SQLExecuteCallback<T> callback) throws SQLException {
         OverallExecutionEvent event = new OverallExecutionEvent(executeUnits.size() > 1);
         ShardingEventBusInstance.getInstance().post(event);
         try {
-            List<T> result = executeEngine.execute((Collection) executeUnits, firstExecuteCallback, executeCallback);
+            List<T> result = executeEngine.execute((Collection) executeUnits, firstExecuteCallback, callback);
             event.setExecuteSuccess();
             return result;
             // CHECKSTYLE:OFF