Buffer frequently accessed data through the Java cache system (Java Caching Systems)

Web developers using java™ technology can quickly improve their application technology through useful buffering techniques. Java Caching System (JCS) is a distributed buffering system for powerful Java applications and a highly configurable tool with a simple API. This is an article that introduces the JCS overview and shows you how to use it to quickly develop your Web application.

Many Web applications are processed by http://www.aliyun.com/zixun/aggregation/8284.html "> desktop applications, and conceptually they should have the same rate of operation as desktop applications." Most of the advantages of Web applications are largely reflected in the growth of speed. Caching data that is frequently accessed and rarely changed is a powerful way to reduce latency for users. Simply manipulating buffered data with a simple Non-intrusive API can help you achieve this goal. Open source JCS is a subproject of the Apache Jakarta Project Turbine and is a similar tool. This article explains how to configure and use JCS to buffer data for your Web application. Www.56doc.com

JCS Overview

JCS is a caching system written in the Java language that you can use to create Java desktops and Web applications. It provides handy tips for storing data in buffers, extracting data, moving data, and so on.

With JCS, you can buffer the data of the different blocks that you specify. JCS defines the type of four core parts: Memory blocks (memory), disk blocks (disks), horizontal blocks (lateral), and remote control blocks (remoted). You can use the combination of these core layers for how and where to store your buffered data, which is highly adaptable. You can specify which block is preferred, or when to fail the to another region.

JCS Helper

In addition to the above four core caching measures, JSC provides a pluggable helper that can be used for each block area. The helper includes disk index buffering (Indexed diskette cache), TCP lateral cache, and remote cache Server. For example: When disk memory reaches the starting point, the disk cache allows you to swap the cache yourself. This makes the control of each buffer block more flexible and provides a simple class of old control virtual memory in most operating systems. The CACHE.CCF configuration file allows you to adjust each helper to meet your application needs.

JCS has two dependent conditions: parallel (concurrent) and description log (commons-logging). (JCS version 1.2.7.0, there are two other dependent conditions: Commons-collections and Commons-lang.) ）

JCS and Java objects

Compared to other caching systems (see materials), one of the advantages of JCS is that it works well for the object. Most Web applications create object-oriented methods of practical Java technology. Caching objects can help you optimize the execution of your application, which requires constant extraction from one of the databases.

Conclusion

JCS is a powerful, Easy-to-use caching system for Java development. It provides data caching for desktops as well as Web applications. The growth of computer desktops like Web applications is a Web application that requires increased speed and flexibility. Caching data can help in this effort. This overview shows how to configure and use JCS. I also cover the syntax of the basic requirements caching method, a common Web application used in cached objects, and retrieving cached metadata. Now that you understand the initial knowledge of JCS, you can quickly start your next fast-moving web site step through data caching. You may also need some additional research JCS fields, JCS provides advanced functionality such as HTTP servlet access, JCS utlities, basic HTTP authentication, and other auxiliary blocks.