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JavaEE应用的分层模型

JavaEE应用的分层模型 大致分为如下几层: Domain Object(领域对象)层:此层由一系列的POJO(Plain Old Java Object,普通的、传统的Java对象)组成,这些对象时该系统的Domain Object,往往包...

2019/05/22 19:03
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随机访问与顺序访问

随机访问:数组在内存中是按顺序存放的,可以通过下标直接定位到某一个元素存放的位置。 顺序访问:链表在内存中不是按顺序存放的,而是通过指针连在一起,为了访问某一元素,必须从链头开始...

2019/03/31 14:41
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Is Hadoop secure for the enterprise?

转自 Is Hadoop secure for the enterprise? This is the question that data analysts must answer if they want to bring Hadoop to lar......

2018/11/28 20:47
87
Time Semantics

在Core Concepts中介绍了三种语义Event time、Processing-time、Ingestion time。 这里需要注意的是:punctuate方法必须使用新数据才能触发。 时间语义设置 如何实现不同的时间语义主要取决于...

2017/08/23 16:06
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Kafka Streams Core Concepts

Core Concepts Kafka Streams is a client library for processing and analyzing data stored in Kafka. It builds upon important stream processing concepts such as properly distingui...

2017/08/20 18:22
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Kafka server.properties

0.8 version # Licensed to the Apache Software Foundation (ASF) under one or more # contributor license agreements. See the NOTICE file distributed with # this work for additiona...

Consumer Group Example-High Level Consumer(翻译)

Using the High Level Consumer Why use the High Level Consumer Sometimes the logic to read messages from Kafka doesn't care about handling the message offsets, it just wants the ...

2017/08/16 20:08
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