subscriber booster

First,database replication involves1. Publishing Server:The source server for the data, maintains the source data, determines what data will be distributed, detects which data has been modified, and submits that information to the Distributor.2. Distribution server:The Distributor is responsible for transferring data from the Publisher to the Subscriber. 3. Subscriber server:A

2016-06-06Rxjava is a frame of fire in the last two years, the core is asynchronous, but what impresses me most is the idea of responsive programming. Recently, I just want to change my project to be realized with Rxjava, so I studied the next. Parabola and Big Head Ghost two Daniel also explained in detail and image, in fact Rxjava in addition to this kind of responsive programming thinking is not very good understanding, operators are also more difficult to understand part. Responsive programm

RxJavaareAndroidBecome more and more popular among developers. The only problem is that it's not easy to get started, especially when most people use imperative programming languages. But once you figure it out, you'll find Rxjava really great. Here is just to help you understand Rxjava, the entire series A total of four articles, I hope you read these four articles can understand Rxjava behind the thought, and like Rxjava.BasisRxjava's core two things are observables (Observer, event source) an

Original link Rxjava is becoming increasingly popular with Android developers. The only problem is that it's not easy to get started, especially when most people use an imperative programming language. But once you figure it out, you'll find Rxjava really great.Here is just to help you understand Rxjava, the whole series has four articles, I hope you read these four articles can understand Rxjava behind the thought, and like Rxjava.Base The two core Rxjava are observables (observed, event source

one or morePublish, each publication represents a set of logically related data. In addition to specifying which of the data needs to be replicated, publish the clothingThe service also detects data that has changed during transactional replication and maintains information about all publications on this site. Distribution serverA Distributor is a server that hosts and stores historical data and/or transactions and metadata as a distribution database. DistributeThe role of the server diff

the operation is:It is not difficult to see the overall invocation process from the results:First, by invoking the Observable.create() method to generate an observer, and then here we call the map() method to the original observer of the Data Flow transformation operations, the generation of a new observer (why is the new observer after the text will speak), and finally call the subscribe() method, passed to our observer, Here the Observer subscribes to the new observer generated after the call

The subscription publishing mode defines a One-to-many dependency that allows multiple subscriber objects to listen to one subject object at the same time. This subject object notifies all subscriber objects when their state changes, enabling them to automatically update their state. One of the bad side effects of splitting a system into a series of interacting classes is the need to maintain consistency am

Directory Design Focus Flow chart Pseudo code2.1. Publishevent2.2. Subscribeevent2.3. Publisher2.4. Subscriber Micro-Service Strong consistency3.1 Publisher3.2 Subscriber Event Bus-cross-service final consistency4.1 Publisher Subscriber All open local transactions, ensuring strong consistency4.2 Problem Scenario One: What happens when ③

Ervice broker implements a complete set of publish-subscribe solutions, in which author sends the service broker message (also known as article) to the publisher (publisher ). The publisher is responsible for distributing messages to different subscribers (subscriber ). Each subscriber accepts specific messages through subscription. Describes this publish-subscribe solution:The following describes how to im

machine as publisherSubscriber: 192.168.1.106, server name: QuZhoushiwei106Publication database: Barfoo.testpublishSubscription database: Barfoo.testsubscribeDatabase account Number: Replicationuser/replicationpasswordDescription: The Publisher and Subscriber are in the same intranet machine, if your environment is cross-network segment (across the room) please refer to: SQL server replication (Publish subscription) Combat II: Cross-network segment (

use the yellow "I" controls on those icons. Select the target device when generating and installing the SDK. Then choose to install it on the mobile phone (series60 is installed successively through Nokia pcsuite) or install it on the simulator. Because there is no pcsuite connection, I chose to install it to the simulator. After the file is generated, copy the SIS extension file found in the project directory to your mobile phone for installation. After installation, you can't wait to run it q

1. Overview of publishing/subscription models The publish-and-subscribe model is usually abbreviated as the pub/Sub Model. In this model, the message producer becomes the publisher, and the message consumer is called the subscribe ). In the point-to-point model, messages are sent to a queue, while the publish/subscribe model publishes messages to a topic. The most important features of the publishing/subscription model are as follows: Messages are exchanged through a virtual channel c

Preliminary use of Android EventBus The technology used by the project. To put it bluntly, the event to be passed (an Object that can be customized) is sent to the public component EventBus for storage, After passing the event message to the subscriber (User) through EventBus, the subscriber can handle the event message by himself. Don't be confused by the title. In fact, you can send and receive events

producer and a consumer, the topic design goal is to allow multiple producer to send messages to it, as well as multiple topic to receive the same message from consumer.Topic's messageproducers and Messageconsumers are created in a similar process to the queue. You can use the session to create Topicpublishers and topicsubscribers. Queuesender and queuereceiver mirrors exist because they both provide topic-specific functionality and implement basic messageproducer and Messageconsumer interfaces

delegate void Publish ()//modifier keyword type delegate name public event Publish Onpublish; Defines the Pubish delegate type event public void issue () //define the method that triggers the event { if (onpublish!= null) //event is not empty { Console.WriteLine ("Issue publication"). "); Onpublish (); Event occurrence } } class subscriber {public v

I. Nature of events An event is a process in which messages are sent and processed between two subsystems in a software system or between two modules or between two objects. In the object-oriented world, we can regard it as the behavior between two objects. The message sent between two objects generates an event for the sender, and an event must be processed when connected to the receiver. This message can be generated by user operations or an object in the software system. Event Processing betw

jquery implements the subscription publisher pattern//using jquery to implement the Observer pattern(function($) { varo = $ ({});//Create a jquery empty object$.extend ({//extend two jquery static methodsDingyue:function() {//Subscription Methodo.on.apply (o,arguments); }, Fabu:function() {//Publish Methodo.trigger.apply (o,arguments); }, Tuiding:function() {//Unsubscribe Methodo.off.apply (o, arguments); } }); //Subscriber a$.din

ObjectiveI have read a few about Rxjava source analysis of the blog, I do not know whether my level is limited or the source is too profound, resulting in a long time to figure out its operating principle. I personally think there should be a better way to quickly analyze the understanding, so decided to write this article.This article is suitable has already seen some Rxjava source analysis material schoolmate, but did not see also does not matter. In this article can refer to this blog: Rxjava