diff --git a/sharding-jdbc-core/src/main/java/com/dangdang/ddframe/rdb/sharding/routing/router/UnparsingSQLRouter.java b/sharding-jdbc-core/src/main/java/com/dangdang/ddframe/rdb/sharding/routing/router/DatabaseHintSQLRouter.java
similarity index 85%
rename from sharding-jdbc-core/src/main/java/com/dangdang/ddframe/rdb/sharding/routing/router/UnparsingSQLRouter.java
rename to sharding-jdbc-core/src/main/java/com/dangdang/ddframe/rdb/sharding/routing/router/DatabaseHintSQLRouter.java
index c6b0340e5c2ecda58e55e4cf517e6b1d9811cc79..c910e01909f2e5590559f9f89560fd8d09f5c6bf 100644
--- a/sharding-jdbc-core/src/main/java/com/dangdang/ddframe/rdb/sharding/routing/router/UnparsingSQLRouter.java
+++ b/sharding-jdbc-core/src/main/java/com/dangdang/ddframe/rdb/sharding/routing/router/DatabaseHintSQLRouter.java
@@ -27,22 +27,22 @@ import com.dangdang.ddframe.rdb.sharding.routing.SQLExecutionUnit;
 import com.dangdang.ddframe.rdb.sharding.routing.SQLRouteResult;
 import com.dangdang.ddframe.rdb.sharding.routing.type.RoutingResult;
 import com.dangdang.ddframe.rdb.sharding.routing.type.TableUnit;
-import com.dangdang.ddframe.rdb.sharding.routing.type.direct.DirectRoutingEngine;
+import com.dangdang.ddframe.rdb.sharding.routing.type.hint.DatabaseHintRoutingEngine;
 import lombok.extern.slf4j.Slf4j;
 
 import java.util.List;
 
 /**
- * 无需解析的SQL路由器.
+ * 通过提示且仅路由至数据库的SQL路由器.
  * 
  * @author zhangiang
  */
 @Slf4j
-public final class UnparsingSQLRouter implements SQLRouter {
+public final class DatabaseHintSQLRouter implements SQLRouter {
     
     private final ShardingRule shardingRule;
     
-    public UnparsingSQLRouter(final ShardingContext shardingContext) {
+    public DatabaseHintSQLRouter(final ShardingContext shardingContext) {
         shardingRule = shardingContext.getShardingRule();
     }
     
@@ -56,7 +56,7 @@ public final class UnparsingSQLRouter implements SQLRouter {
     public SQLRouteResult route(final String logicSQL, final List<Object> parameters, final SQLStatement sqlStatement) {
         Context context = MetricsContext.start("Route SQL");
         SQLRouteResult result = new SQLRouteResult(sqlStatement);
-        RoutingResult routingResult = new DirectRoutingEngine(shardingRule.getDataSourceRule(), shardingRule.getDatabaseShardingStrategy(), sqlStatement.getType()).route();
+        RoutingResult routingResult = new DatabaseHintRoutingEngine(shardingRule.getDataSourceRule(), shardingRule.getDatabaseShardingStrategy(), sqlStatement.getType()).route();
         for (TableUnit each : routingResult.getTableUnits().getTableUnits()) {
             result.getExecutionUnits().add(new SQLExecutionUnit(each.getDataSourceName(), logicSQL));
         }
diff --git a/sharding-jdbc-core/src/main/java/com/dangdang/ddframe/rdb/sharding/routing/router/SQLRouterFactory.java b/sharding-jdbc-core/src/main/java/com/dangdang/ddframe/rdb/sharding/routing/router/SQLRouterFactory.java
index 2bfda2e3ae4ab0d041772f4dc1b5543afb716797..3839232f03e4172aabefad51c7bb5a83243f469f 100644
--- a/sharding-jdbc-core/src/main/java/com/dangdang/ddframe/rdb/sharding/routing/router/SQLRouterFactory.java
+++ b/sharding-jdbc-core/src/main/java/com/dangdang/ddframe/rdb/sharding/routing/router/SQLRouterFactory.java
@@ -37,6 +37,6 @@ public final class SQLRouterFactory {
      * @return SQL路由器
      */
     public static SQLRouter createSQLRouter(final ShardingContext shardingContext) {
-        return HintManagerHolder.isDatabaseShardingOnly() ? new UnparsingSQLRouter(shardingContext) : new ParsingSQLRouter(shardingContext);
+        return HintManagerHolder.isDatabaseShardingOnly() ? new DatabaseHintSQLRouter(shardingContext) : new ParsingSQLRouter(shardingContext);
     }
 }
diff --git a/sharding-jdbc-core/src/main/java/com/dangdang/ddframe/rdb/sharding/routing/type/RoutingEngine.java b/sharding-jdbc-core/src/main/java/com/dangdang/ddframe/rdb/sharding/routing/type/RoutingEngine.java
index 73b23497711afebb3ad6f6b2c553c84624907154..9f5b3a9b8be285669d2ffd96ddd39109f4e68313 100644
--- a/sharding-jdbc-core/src/main/java/com/dangdang/ddframe/rdb/sharding/routing/type/RoutingEngine.java
+++ b/sharding-jdbc-core/src/main/java/com/dangdang/ddframe/rdb/sharding/routing/type/RoutingEngine.java
@@ -1,7 +1,7 @@
 package com.dangdang.ddframe.rdb.sharding.routing.type;
 
 /**
- * 路由接口.
+ * 路由引擎接口.
  *
  * @author zhangliang
  */
diff --git a/sharding-jdbc-core/src/main/java/com/dangdang/ddframe/rdb/sharding/routing/type/complex/ComplexRoutingEngine.java b/sharding-jdbc-core/src/main/java/com/dangdang/ddframe/rdb/sharding/routing/type/complex/ComplexRoutingEngine.java
index 7259bd3ab9902e7969beb6dca18c01ddbada485f..71b90f6789bbfab6e166d1833e365a18d1bfc0c7 100644
--- a/sharding-jdbc-core/src/main/java/com/dangdang/ddframe/rdb/sharding/routing/type/complex/ComplexRoutingEngine.java
+++ b/sharding-jdbc-core/src/main/java/com/dangdang/ddframe/rdb/sharding/routing/type/complex/ComplexRoutingEngine.java
@@ -37,7 +37,7 @@ import java.util.List;
 import java.util.TreeSet;
 
 /**
- * 混合多库表路由类.
+ * 混合多库表路由引擎.
  * 
  * @author gaohongtao
  * @author zhangliang
diff --git a/sharding-jdbc-core/src/main/java/com/dangdang/ddframe/rdb/sharding/routing/type/direct/DirectRoutingEngine.java b/sharding-jdbc-core/src/main/java/com/dangdang/ddframe/rdb/sharding/routing/type/hint/DatabaseHintRoutingEngine.java
similarity index 93%
rename from sharding-jdbc-core/src/main/java/com/dangdang/ddframe/rdb/sharding/routing/type/direct/DirectRoutingEngine.java
rename to sharding-jdbc-core/src/main/java/com/dangdang/ddframe/rdb/sharding/routing/type/hint/DatabaseHintRoutingEngine.java
index 4fa3c292789b0e7f45955a98b7c787747859fa12..97a92e62d5bb2582d854beafe5d54512adbda602 100644
--- a/sharding-jdbc-core/src/main/java/com/dangdang/ddframe/rdb/sharding/routing/type/direct/DirectRoutingEngine.java
+++ b/sharding-jdbc-core/src/main/java/com/dangdang/ddframe/rdb/sharding/routing/type/hint/DatabaseHintRoutingEngine.java
@@ -15,7 +15,7 @@
  * </p>
  */
 
-package com.dangdang.ddframe.rdb.sharding.routing.type.direct;
+package com.dangdang.ddframe.rdb.sharding.routing.type.hint;
 
 import com.dangdang.ddframe.rdb.sharding.api.ShardingValue;
 import com.dangdang.ddframe.rdb.sharding.api.rule.DataSourceRule;
@@ -35,13 +35,14 @@ import java.util.Collection;
 import java.util.Collections;
 
 /**
- * 直接路由.
+ * 基于数据库提示的路由引擎.
  * 
  * @author gaohongtao
+ * @author zhangliang
  */
 @RequiredArgsConstructor
 @Slf4j
-public final class DirectRoutingEngine implements RoutingEngine {
+public final class DatabaseHintRoutingEngine implements RoutingEngine {
     
     private final DataSourceRule dataSourceRule;