brijoobopanna commented on a change in pull request #3436: [WIP]Geospatial Support: Modified to create and load the table with a nonschema dimension sort column
URL:
https://github.com/apache/carbondata/pull/3436#discussion_r347299995
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File path: core/src/main/java/org/apache/carbondata/core/util/QuadTreeUtil.scala
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@@ -0,0 +1,67 @@
+/*
+ * 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.core.util
+
+import java.util
+
+
+class QuadTreeUtil{
+
+ /**
+ * 二分查找法,传入的是列表 List<long[]> arrays, 待查询的是 des
+ *
+ * @param arrays 数据区域,数据是有序的
+ * @param des 待查询数据
+ * @return >=0 返回找到的元素在列表中的位置 < 0 未找到
+ */
+ def binarySearch(arrays: util.List[Array[Long]], des: Long): (Int,(Int, Int) ) = {
Review comment:
Can we reuse the collections search implementation, why write our own binary search?
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