high performance java persistence

Note: This article is about the latest version of previous articles on the same topic. The previous article introduces some of the main points of creating a high-performance parser, but it absorbs some of the criticism from readers. The original article was comprehensively revised and supplemented with relatively complete code. We hope you like this update. If you do not specify a data or language standard

J2ee| Strategy | performance For Java EE, we know that when developing applications, decisions in the architectural design phase will have a profound impact on the performance and scalability of the application. Now, when developing an application project, we are increasingly aware of the problem of performance and sca

In some cases, you might want to implement your own data or language parser in Java, perhaps in a format or language that lacks standard Java or open source parsers to use. Or, while there are existing parser implementations, they are either too slow or too much for memory, or they don't fit the features you need. Or there is a flaw in an open source parser, or an open source parser project aborted, for a r

About StringBuilder, the general students simply remember, string splicing to use StringBuilder, do not use +, do not use StringBuffer, and then the performance is the best, really?There are also some students who have heard three plausible experiences:1. Java compilation after optimization + and StringBuilder the same effect;2. StringBuilder is not thread-safe, it is best to use stringbuffer for the sake o

Summary of StringBuilder's high-performance usage in Java For StringBuilder, you can simply remember that String concatenation must use StringBuilder, not ++, or StringBuffer, and the performance is the best. Is it true? Some of you have heard of three similar experiences: 1. After

A new generation of Java template engines with high performance and scalability.Http://git.oschina.net/sub/jetbrick-template/tree/masterOriginal: http://lafecat.iteye.com/blog/2042972 Jetbrick-template is a new generation of Java template engines with high

)) { intLength =array.getlength (Bean); Object Clone=array.newinstance (Bean.getclass (). Getcomponenttype (), length); for(inti = 0; i ) {Array.set (clone, I, _clone (Array.get (bean, I))); } returnclone; } Else { returnBean; } } } } Private StaticBeancopier _createcopier (classCLZ) { if(Beancopiers.containskey (CLZ))returnBeancopiers.get

Pk2244-java second kill system scheme optimizes high performance and concurrency combatThe beginning of the new year, learning to be early, drip records, learning is progress!Essay background: In a lot of times, many of the early friends will ask me: I am from other languages transferred to the development of the program, there are some basic information to learn

Jetlang provides a high-performance Java line libraries, which complements the Java.util.concurrent package in JDK 1.5 and can be used for applications based on concurrent messaging mechanisms. The library does not provide remote messaging capabilities and is designed to implement an in-memory messaging mechanism:The main features are: All messages to a part

Currently, there are many popular JavaEE containers: Tomcat, Resin, JBoss, and Glassfish. We usually use the first three containers. Who is more stable in terms of java container performance, what about higher concurrency? The current version of resin is 4.0.33, which is known to be more concurrent than apache. It not only supports jsp language, but also php. We have used tomcat many times before. We know

Java. Io .* It is the most primitive and simplest Io operation.It is usually easy to use and suitable for scenarios with a small number of concurrent jobs.Io is blocked.For multiple sockets, you may need to create one per socket.Thread for processing. Think about 1000 or more cases.What will the server look like? The server is busy with thread switching. Java. NiO .*This is a

1th Course Introduction (Java Concurrent Programming Advanced course)What is Disruptor? It is a high-performance asynchronous processing framework, known as the "single-threaded processing of 600W orders per second" artifact, the goal of this course: a thorough mastery of such an excellent open source framework, interview seconds to kill the interviewer. This cha

Apache MINA (Multipurpose Infrastructure for network applications) is a relatively new project for the Apache organization that provides a very convenient framework for developing high-performance and high-availability Web applications. The current release of the MINA version supports Java NIO technology-based TCP/UDP

(); System.out.println ("timeout=" + (End-start));// the } /*** Reflectasm reflection to Set/get field values*/@Test Public voidtestfieldaccess () {userservice target=NewUserService (); Fieldaccess fieldaccess=Fieldaccess.get (Target.getclass ()); Fieldaccess.set (Target,"State", 1); intstate = (Integer) fieldaccess.get (target, ' state '); System.out.println (state); } /*** Reflectasm reflection to invoke construction method*/@Test Public voidtestconstructoraccess () {const

It is the key and difficulty to build high-performance service to improve the system's concurrent throughput. Usually review code when you see synchronized I will think about it, this place can be optimized. Using synchronized enables concurrent threads to become sequential executions, which have a significant impact on system concurrency throughput, my blog http://maoyidao.iteye.com/blog/1149015 introduces

are deploying an EE Based on the Java platform, the chance is that the EJB container has become part of your application server. "Why not use an available one ?" It may be the first question you need to ask when making your architecture decisions. I regard this as a "political" advantage over other frameworks because it is available. When to consider using EJB alternatives as a persistent framework The functional requirements of the

Voovan is a high-performance asynchronous network framework and HTTP Server framework that supports HTTP client crawling, dynamic compilation support, database access encapsulation, and DateTime, String, Log, Reflection, object tools, flow operations, file operations, asynchronous bidirectional channels, and more. Designed to provide reliable, convenient, and unit-tested code. It is a standalone toolkit wit

Grpc 1.3.4 Released, Grpc is a high-performance, open-source, universal RPC framework for mobile and HTTP/2 design, the first Protocol-based RPC framework released by Google. GRPC is based on the HTTP/2 standard design, which brings features such as bidirectional flow, flow control, head compression, and multiple multiplexing requests on a single TCP connection. These features enable them to perform better