diff --git a/sharding-jdbc-core/src/main/java/com/dangdang/ddframe/rdb/sharding/executor/wrapper/AbstractExecutorWrapper.java b/sharding-jdbc-core/src/main/java/com/dangdang/ddframe/rdb/sharding/executor/wrapper/AbstractExecutorWrapper.java
deleted file mode 100644
index d31fc829323b1fc0b1880c4fea3900bdee970460..0000000000000000000000000000000000000000
--- a/sharding-jdbc-core/src/main/java/com/dangdang/ddframe/rdb/sharding/executor/wrapper/AbstractExecutorWrapper.java
+++ /dev/null
@@ -1,34 +0,0 @@
-/*
- * Copyright 1999-2015 dangdang.com.
- * <p>
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- * </p>
- */
-
-package com.dangdang.ddframe.rdb.sharding.executor.wrapper;
-
-import com.dangdang.ddframe.rdb.sharding.routing.SQLExecutionUnit;
-import lombok.Getter;
-import lombok.RequiredArgsConstructor;
-
-/**
- * 执行上下文基类.
- * 
- * @author zhangliang
- */
-@RequiredArgsConstructor
-@Getter
-public abstract class AbstractExecutorWrapper {
-    
-    private final SQLExecutionUnit sqlExecutionUnit;
-}
diff --git a/sharding-jdbc-core/src/main/java/com/dangdang/ddframe/rdb/sharding/executor/wrapper/PreparedStatementExecutorWrapper.java b/sharding-jdbc-core/src/main/java/com/dangdang/ddframe/rdb/sharding/executor/wrapper/PreparedStatementExecutorWrapper.java
index 576d75075cebb509d96f0d03a29160ddfc93c5e0..6328a06829166f75380c714039226ab103c51d5a 100644
--- a/sharding-jdbc-core/src/main/java/com/dangdang/ddframe/rdb/sharding/executor/wrapper/PreparedStatementExecutorWrapper.java
+++ b/sharding-jdbc-core/src/main/java/com/dangdang/ddframe/rdb/sharding/executor/wrapper/PreparedStatementExecutorWrapper.java
@@ -36,7 +36,10 @@ import java.util.List;
  * 
  * @author zhangliang
  */
-public class PreparedStatementExecutorWrapper extends AbstractExecutorWrapper {
+public final class PreparedStatementExecutorWrapper {
+    
+    @Getter
+    private final SQLExecutionUnit sqlExecutionUnit;
     
     @Getter
     private final PreparedStatement preparedStatement;
@@ -49,7 +52,7 @@ public class PreparedStatementExecutorWrapper extends AbstractExecutorWrapper {
     private int batchIndex;
     
     public PreparedStatementExecutorWrapper(final SQLType sqlType, final PreparedStatement preparedStatement, final SQLExecutionUnit sqlExecutionUnit) {
-        super(sqlExecutionUnit);
+        this.sqlExecutionUnit = sqlExecutionUnit;
         this.preparedStatement = preparedStatement;
         switch (sqlType) {
             case SELECT:
diff --git a/sharding-jdbc-core/src/main/java/com/dangdang/ddframe/rdb/sharding/executor/wrapper/StatementExecutorWrapper.java b/sharding-jdbc-core/src/main/java/com/dangdang/ddframe/rdb/sharding/executor/wrapper/StatementExecutorWrapper.java
deleted file mode 100644
index 20d0b78d2cc957444b6df9c3fb232d77da4eb53d..0000000000000000000000000000000000000000
--- a/sharding-jdbc-core/src/main/java/com/dangdang/ddframe/rdb/sharding/executor/wrapper/StatementExecutorWrapper.java
+++ /dev/null
@@ -1,39 +0,0 @@
-/*
- * Copyright 1999-2015 dangdang.com.
- * <p>
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- * </p>
- */
-
-package com.dangdang.ddframe.rdb.sharding.executor.wrapper;
-
-import com.dangdang.ddframe.rdb.sharding.routing.SQLExecutionUnit;
-import lombok.Getter;
-
-import java.sql.Statement;
-
-/**
- * 静态语句对象的执行上下文.
- * 
- * @author zhangliang
- */
-public final class StatementExecutorWrapper extends AbstractExecutorWrapper {
-    
-    @Getter
-    private final Statement statement;
-    
-    public StatementExecutorWrapper(final Statement statement, final SQLExecutionUnit sqlExecutionUnit) {
-        super(sqlExecutionUnit);
-        this.statement = statement;
-    }
-}