Here you can find the source of getRecordSize(List> columnBaseData)
private static int getRecordSize(List<List<BigDecimal>> columnBaseData)
//package com.java2s; /**// w ww. j av a 2 s.c o m * Copyright (c) 2014 Baidu, Inc. All Rights Reserved. * * 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. */ import java.math.BigDecimal; import java.util.List; public class Main { private static int getRecordSize(List<List<BigDecimal>> columnBaseData) { if (columnBaseData == null || columnBaseData.size() == 0) { return 0; } if (columnBaseData.get(0) == null) { return 0; } return columnBaseData.get(0).size(); } }