Github user xuchuanyin commented on a diff in the pull request:
https://github.com/apache/carbondata/pull/2792#discussion_r226555519
--- Diff:
store/sdk/src/main/java/org/apache/carbondata/sdk/file/RowUtil.java ---
@@ -0,0 +1,146 @@
+/*
+ * 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.carbondata.sdk.file;
+
+import java.io.Serializable;
+import java.math.BigDecimal;
+
+/**
+ * This row class is used to transfer the row data from one step to other
step
+ */
+public class RowUtil implements Serializable {
+
+ public static String getString(Object[] data, int ordinal) {
+ return (String) data[ordinal];
+ }
+
+ /**
+ * get short type data by ordinal
+ *
+ * @param data carbon row data
+ * @param ordinal the data index of Row
+ * @return short data type data
+ */
+ public static short getShort(Object[] data, int ordinal) {
+ return (short) data[ordinal];
+ }
+
+ /**
+ * get int data type data by ordinal
+ *
+ * @param data carbon row data
+ * @param ordinal the data index of Row
+ * @return int data type data
+ */
+ public static int getInt(Object[] data, int ordinal) {
+ return (Integer) data[ordinal];
+ }
+
+ /**
+ * get long data type data by ordinal
+ *
+ * @param data carbon row data
+ * @param ordinal the data index of Row
+ * @return long data type data
+ */
+ public static long getLong(Object[] data, int ordinal) {
+ return (long) data[ordinal];
+ }
+
+ /**
+ * get array data type data by ordinal
+ *
+ * @param data carbon row data
+ * @param ordinal the data index of Row
+ * @return array data type data
+ */
+ public static Object[] getArray(Object[] data, int ordinal) {
+ return (Object[]) data[ordinal];
+ }
+
+ /**
+ * get double data type data by ordinal
+ *
+ * @param data carbon row data
+ * @param ordinal the data index of Row
+ * @return double data type data
+ */
+ public static double getDouble(Object[] data, int ordinal) {
+ return (double) data[ordinal];
+ }
+
+ /**
+ * get boolean data type data by ordinal
+ *
+ * @param data carbon row data
+ * @param ordinal the data index of Row
+ * @return boolean data type data
+ */
+ public static boolean getBoolean(Object[] data, int ordinal) {
+ return (boolean) data[ordinal];
+ }
+
+ /**
+ * get byte data type data by ordinal
+ *
+ * @param data carbon row data
+ * @param ordinal the data index of Row
+ * @return byte data type data
+ */
+ public static Byte getByte(Object[] data, int ordinal) {
+ return (Byte) data[ordinal];
+ }
+
+ /**
+ * get float data type data by ordinal
+ *
+ * @param data carbon row data
+ * @param ordinal the data index of Row
+ * @return float data type data
+ */
+ public static float getFloat(Object[] data, int ordinal) {
+ return (float) data[ordinal];
+ }
+
+ /**
+ * get varchar data type data by ordinal
+ * This is for CSDK
+ * JNI don't support varchar, so carbon convert decimal to string
--- End diff --
`convert decimal to string`?
---
