There are certain things to care while implementing the Jasper Reports for huge dataset to handle the memory efficiently, so that the appliacation does not go out of memory. They are: 1) Pagination of the data and use of JRDataSource, 2) Viruatizatio…

[it-ebooks]电子书列表   [2014]: Learning Objective-C by Developing iPhone Games || Leverage Xcode and Objective-C to develop iPhone games http://it-ebooks.info/book/3544/Learning Web App Development || Build Quickly with Proven JavaScript Techniques http:…

* What's new in version 2.8, 2015-06-17 - SystemTap has improved support for probing golang programs. Work has been  done to be able to handle DWARF information, reporting file names, line  numbers, and column numbers, and tolerance of odd characters…

In my last blog post I discussed about Generating jasper reports in different formats using json file as a data source.You can find my last post here. In this blog article I will discuss about exporting the jasperPrint object in different formats lik…

[RDA]使用RDA(Remote Diagnostic Agent)工具对数据库进行健康检查 分类: Linux RDA英文全称叫做"Oracle Remote Diagnostic Agent". 这个Oracle诊断工具是用perl编写的,包含非常丰富的诊断脚本,使用它可以非常便利的采集到Oracle数据库服务器系统配置和数据库的详细信息. 如果您在向Oracle支持人员寻求帮助时能够提供一份RDA报告,将会大大的缩短问题处理的周期,避免信息的反复采集. RDA不会更改数据库服务…

版权 文章转载自:https://github.com/zhongsp 建议您直接跳转到上面的网址查看最新版本. 介绍 传统的JavaScript程序使用函数和基于原型的继承来创建可重用的组件,但这对于熟悉使用面向对象方式的程序员来说有些棘手,因为他们用的是基于类的继承并且对象是从类构建出来的. 从ECMAScript 2015,也就是ECMAScript 6,JavaScript程序将可以使用这种基于类的面向对象方法. 在TypeScript里,我们允许开发者现在就使用这些特性,并且编译后的J…

Overview Here I want to summarize Amazon marketplace web service (MWS or AMWS) that can be used for e-commerce data integration. It is based on Amazon online documents. The developer guide describes the basic functions and features of Amazon MWS. Fea…

1.Overview of the Automatic Workload Repository The Automatic Workload Repository (AWR) collects, processes, and maintains performance statistics for problem detection and self-tuning purposes. This data is both in memory and stored in the database.…

TypeScript的类,简单地定义如下: class Person { x: number; // 默认为public类型 y: number; constructor(x1: number, y1: number) { // 默认为public类型 this.x = x1; this.y = y1; } } let test = new Person(12, 34) ts中,定义一个类使用class关键字,使用new进行类的实例化,constructor关键字用来定义该类的构造函数. 参数属…

前言 Gatling Gatling是一款功能强大的负载测试工具,它为易于使用,高可维护性和高性能而设计. 开箱即用,Gatling由于对HTTP协议的出色支持,使其成为负载测试任何HTTP服务器的首选工具.由于核心引擎实际上是协议不可知的,因此完全可以实现对其他协议的支持.例如,Gatling目前还提供JMS支持. 代码自定义并且场景资源有效是Gatling的两个基础.并且拥有富有表现力的DSL,自我解释的场景,易于维护,可以保存在版本控制系统中的优点. 只要底层协议(如HTTP)可以以非阻塞…