rich

“富函数”是DataStream API提供的一个函数类的接口，所有Flink函数类都有其Rich版本。它与常规函数的不同在于，可以获取运行环境的上下文，并拥有一些生命周期方法，所以可以实现更复杂的功能。  RichMapFunction  RichFlatMapFunction  RichFilterFunction Rich Function有一个生命周期的概念。典型的生命周期方法有：  open()方法是rich function的初始化方法，当一个算子例如map或者filter被调用之前open()会被调用。  close()方法是生命周期中的最后一个调用的方法，做一些清理工作。  getRuntimeContext()方法提供了函数的RuntimeContext的一些信息，例如函数执行的并行度，任务的名字，以及state状态 import org.apache.flink.api.common.functions.RichMapFunction import org.apache.flink.configuration.Configuration object RichFunction { def main(args: Array[String]): Unit = { } } class MyMapFunction extends

Introduction Javascript rich text editor has ease our life when we need to edit articles, post or even documents online. Most of the editors allow user to edit the content straight away (What You See Is What You Get - WYSIWYG), it just like editting a document with microsoft office. Nowadays, I think all of the content management system, blog systems are using rich text editor. LATEST VERSION: You can read our latest post about rich text editors: 10 Feature Packed Javascript WYSIWYG and Rich Text Editors Sponsor: SentionalJobs Browse through dozens of job offers for web professionals including

iOS底层学习-day-11 前言-OC-Rutime篇 isa指针 位域 优化后 isa_max 前言-OC-Rutime篇 我是一名iOS开发者， iOS底层 菜鸟的进阶之路30天。 isa指针 要想学习Runtime，首先要了解它底层的一些常用数据结构，比如isa指针 在arm64架构之前，isa就是一个普通的指针，存储着Class、Meta-Class对象的内存地址 从arm64架构开始，对isa进行了优化，变成了一个共用体（union）结构，还使用位域来存储更多的信息 位域 MJPerson.h # import <Foundation/Foundation.h> @interface MJPerson : NSObject - ( void ) setTall : ( BOOL ) tall ; - ( void ) setRich : ( BOOL ) rich ; - ( void ) setHandsome : ( BOOL ) handsome ; - ( BOOL ) isTall ; - ( BOOL ) isRich ; - ( BOOL ) isHandsome ; @end MJPerson.m # import "MJPerson.h" # define MJTallMask (1<<0) 0b 0000 0001 # define

浅谈linux防火墙之Firewalld服务 1️⃣ Firewalld服务简介 2️⃣ Firewalld服务配置 ▶1 Firewalld预定义服务配置 ▶2 Firewalld 三种配置方法 ▶3 Firewall-cmd 命令选项 3️⃣ rich规则 ▶1 rich规则简介 ▶2 rich规则实施顺序： ▶3 rich规则选项 ▶4 rich日志规则 ▶5 伪造和端口转发 1️⃣ Firewalld服务简介 ▶1 基本介绍 firewalld是CentOS 7.0新推出的管理netfilter的工具 firewalld是配置和监控防火墙规则的系统守护进程，可以实现iptables,ip6tables,ebtables的功能 firewalld服务由firewalld包提供 ▶2 ZONE:区域 firewalld支持划分区域zone,每个zone可以设置独立的防火墙规则 归入zone顺序： 先根据数据包中源地址，将其纳为某个zone 纳为网络接口所属zone 纳入默认zone，默认为public zone,管理员可以改为其它zone 网卡默认属于public zone,lo网络接口属于trusted zone Firewalld zone分类 zone名称 默认配置 trusted 允许所有流量 home 拒绝除和传出流量相关的，以及ssh,mdsn,ipp-client

Centos7-----firewalld详解 概述： Filewalld（动态防火墙）作为redhat7系统中变更对于netfilter内核模块的管理工具； iptables service 管理防火墙规则的模式（静态）：用户将新的防火墙规则添加进 /etc/sysconfig/iptables 配置文件当中， 再执行命令 /etc/init.d/iptables reload 使变更的规则生效。在这整个过程的背后，iptables service 首先对旧的防火墙规则进行了清空， 然后重新完整地加载所有新的防火墙规则，如果加载了防火墙的模块，需要在重新加载后进行手动加载防火墙的模块； firewalld 管理防火墙规则的模式（动态）:任何规则的变更都不需要对整个防火墙规则列表进行重新加载，只需要将变更部分保存并更新到运行中的 iptables 即可。 还有命令行和图形界面配置工具，它仅仅是替代了 iptables service 部分，其底层还是使用 iptables 作为防火墙规则管理入口。 firewalld 使用 python 语言开发，在新版本中已经计划使用 c++ 重写 daemon 部分。 便于理解： 相较于传统的防火墙管理配置工具，firewalld支持动态更新技术并加入了区域（zone）的概念。 简单来说，区域就是firewalld预先准备了几套防火墙策略集合

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: There is some way to pass action in <rich:modalPanel> . I want to write simple popup with "Yes" and "No" button, and I want to reuse this popup in different pages, that's why I need that different action was invoked when "Yes" button pressed. There is a way to pass some value in <rich:modalPanel> with <a4j:actionparam> : <a4j:commandButton value="See details…" id="det" reRender="popup_dataIdField, …"> <rich:componentControl for="popup" operation="show" event="onclick" /> <a4j:actionparam name="message" assignTo="#{popupBean.message}" value="

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I designed a website and its uploaded to server and is working fine. in one of these pages i get some info from users like their addresses and ... and save them to a text file. Can i make an application and load a rich edit or memo from that file? that file has itself address like www.mysite.com/my_text_File.txt thank you for your help. 回答1: Yes, you can. function WebGetData(const UserAgent: string; const Server: string; const Resource: string): AnsiString; var hInet: HINTERNET; hURL: HINTERNET; Buffer: array[0..1023] of AnsiChar; i,

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I run an e-commerce website and rich snippets are helpful but I believe they would be more effective with an image of the product. Is there a way to add a product image to the rich snippet? I've created an image of the end result I'm looking for: I found this in a google forum which appeared to be on to something but the question wasn't answered: http://productforums.google.com/forum/#!topic/webmasters/CRrb_TgAjfw My questions are: can this be done? If there is a way to get it done, will it negatively affect our SEO? Chances are that it will

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: With the spring '12 coming over these days, the old "hack" to convert the rich editor will not work any more. What can be done to retain full CKEditor functionality after spring 12? 回答1: New CKEditor is object rather than URL based and a new approach is needed. In case anyone needs it, the following script will replace factory editor layout with a full version allowing additional formating options (fonts, colors, etc). Note, I set the height to 600px, adjust for your own needs. Also, as before, this can only work in your own VF pages, you