[GitHub] [shardingsphere] tuichenchuxin commented on a diff in pull request #15457: Use dialect row loader to load resultSet when use JDBCMemoryQueryResult

[GitBox <gi...@apache.org>]

tuichenchuxin commented on code in PR #15457:
URL: https://github.com/apache/shardingsphere/pull/15457#discussion_r876866981


##########
shardingsphere-infra/shardingsphere-infra-executor/src/main/java/org/apache/shardingsphere/infra/executor/sql/execute/result/query/impl/driver/jdbc/type/memory/loader/DialectJDBCRowsLoaderFactory.java:
##########
@@ -0,0 +1,46 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You 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.
+ */
+
+package org.apache.shardingsphere.infra.executor.sql.execute.result.query.impl.driver.jdbc.type.memory.loader;
+
+import lombok.AccessLevel;
+import lombok.NoArgsConstructor;
+import org.apache.shardingsphere.infra.database.type.DatabaseType;
+import org.apache.shardingsphere.spi.ShardingSphereServiceLoader;
+import org.apache.shardingsphere.spi.type.required.RequiredSPIRegistry;
+import org.apache.shardingsphere.spi.type.typed.TypedSPIRegistry;
+
+/**
+ * Dialect JDBC rows loader factory.
+ */
+@NoArgsConstructor(access = AccessLevel.PRIVATE)
+public final class DialectJDBCRowsLoaderFactory {
+    
+    static {
+        ShardingSphereServiceLoader.register(JDBCRowsLoader.class);
+    }
+    
+    /**
+     * Find instance of dialect JDBC rows loader factory.
+     *
+     * @param databaseType database type
+     * @return found instance
+     */
+    public static JDBCRowsLoader getInstance(final DatabaseType databaseType) {
+        return TypedSPIRegistry.findRegisteredService(JDBCRowsLoader.class, databaseType.getType()).orElse(RequiredSPIRegistry.getRegisteredService(JDBCRowsLoader.class));

Review Comment:
   Done. Thank you.



##########
shardingsphere-infra/shardingsphere-infra-executor/src/main/java/org/apache/shardingsphere/infra/executor/sql/execute/result/query/impl/driver/jdbc/type/memory/loader/AbstractJDBCRowsLoader.java:
##########
@@ -115,7 +99,14 @@ private static Object loadRowValue(final ResultSet resultSet, final int columnIn
         }
     }
     
-    private static boolean isYearDataType(final String columnDataTypeName) {
-        return YEAR_DATA_TYPE.equalsIgnoreCase(columnDataTypeName);
-    }
+    /**
+     * Get date from result set.
+     * 
+     * @param resultSet result set
+     * @param columnIndex column index
+     * @return date
+     * @throws SQLException sql exception
+     */
+    protected abstract Object getDate(ResultSet resultSet, int columnIndex) throws SQLException;
+    

Review Comment:
   Done. Thank you.



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