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transparency of business processes, business rules can be managed
Reduce the reliance on IT staff
Avoid the risk of future upgrades
for IT developers
Simplify system architecture and optimize applications
Improve system maintainability and maintenance costs
Easy integration of systems
Reduce the cost and risk of writing "hard Code" business rules
What is a rule engine
implementation, to realize the separation of technology and business, developer processing technology, business analysts define business rules, each do their own good things.Scenario: There is already a relatively mature open source product support, it is drools, we define business rules in database or brms (Management System), through the management of DB or brms to achieve dynamic change of business logic.When should you use the
The rule engine is applicable to complex and variable rules, such as product full reduction, bonus points, and attendance rules.
1. Introduce Maven dependency
2. drools can be executed in two ways. The first is based on the kmodule. xml and DRL configuration files, and the second is the dynamic read Rule.
Kmodule-b
Introduction: Using the Rules engine can reduce the maintenance and scalability costs of applications by reducing the complexity of components that implement complex business logic. This updated article shows how to use the open source Drools rule engine to make Java™ applications more adaptable to change. The
Jboss Rule Engine KIE Drools 6.3.0 Final tutorial (3)
The first two tutorials show you how to run the. drools file locally and use the stateless method to access the rules on remote repository. KIE Drools also provides a stateful-stateful access method.Running rules on a KIE
Plugin:http://download.jboss.org/drools/release/1, open the corresponding version of the file, select the Red two compressed package download, other if necessary, you can choose:2, will download the compressed package decompression, this side put in the E:\tools\drools directory, open eclipse,help->install New software->add, select e:/tools/drools/ droolsjbpm-to
1. What is drools.
Drools is a Java-language based rule engine framework. Solves the problem that the complex business logic in the business system is hard coded into the program code. The advent of drools can separate business logic from program code, and can also change
DroolsJBoss rules is an open-source business rule engine that is easy to access enterprise policies, easy to adjust, and easy to manage. It complies with industry standards and is fast and efficient. Business analysts or reviewers can use it to easily view business rules, so as to check whether the encoded rules have executed the required business rules.
The predecessor of JBoss rules is a codehaus open-so
Infoq published an introduction to the rule engine real-world rule engines, the original http://www.infoq.com/articles/Rule-Engines
There are also two articles on onjava:
Give your business logic a framework with drools http://www.onjava.com/lpt/a/6093
Using
Ilog jrules
Today, we have compared these three representative Rule Engine rule languages. Among them, ilog is a commercial product and has no chance to practice it.
Author: Jiangnan Baiyi1. The same if-then sentence and Rete Engine
All three will solve the chaotic if --- else --- elseif ---- else mystery,Split it into
Course Lecturer: David
Course Category: Other
Suitable for people: Beginner
Number of lessons: 9 hours
Update level: Complete
Using the technology: Java, Drools
Projects involved: Drools Rule workflow engine
Contact information:Need more information to contact Q2748165793I. Background of th
Course Lecturer: David
Course Category: other
Suitable for people: Beginner
Number of lessons:9 hours
Update level: complete
Use the technology: Java, Drools
Projects involved: Drools Rule Workflow Engine
Contact information:Need more information to contact Q2748165793I. Background of the c
Drools Rule LearningIn Drools, a standard rule file is a text file that ends with ". DrL" because it is aA standard text file, so you can open, view, and edit it with some Notepad tools. The rules are placed onRules file, a rule file can hold multiple rules, in addition, in
Original address: http://docs.jboss.org/drools/release/6.2.0.Final/drools-docs/html_single/index.html
All the steps in front of the original text can be omitted, directly from the installation of the Eclipse plug-in, the installation address is: http://docs.jboss.org/drools/release/6.2.0.Final/drools-docs/html_single/i
This is a creation in
Article, where the information may have evolved or changed. Ilog JRules
is the most famous commercial brms, just took the jolt;
Drools is the most active open source rules engine, all the way up;Jess is the clips Java implementation, as JRuby to Ruby, is the representative of the AI department.
Today, we compare the rules of these three quite representative rules engines. Ilog is a com
Original address: http://jefferson.iteye.com/blog/68604In the section above on the use of JSR94 API, we use the implementation of the specific engine is a commercial product, if you want to understand the use of drools, here is an introductory reference article: http://blog.csdn.net/tigerflower/ Archive/2006/09/06/1185922.aspx. Since there are few articles on blaze, here is a brief introduction to its imple
queue. Therefore, a "dynamic" rule execution chain is formed, which forms the inference mechanism of the rule. The "chained" response to this rule is entirely driven by data in the workspace.
The efficiency of rule condition matching determines the performance of the
Drools Official website: http://www.jboss.org/droolsDrools and JBPM consist out of several projects: (Drools package provides several parts of the functionality)Drools Guvnor (Business Rules manager) ( rule set manager)Drools Expert ( Ru
Decision tree and rule engine, decision tree Rule Engine
Use of Decision TreesDecision Trees are often used in data mining and are one of the most basic algorithms. Almost everyone who has learned Data Mining knows decision trees. However, the original use of the restored decision tree is more practical and intuitive w
Decision tree and rule engine, decision tree Rule Engine
Use of Decision TreesDecision Trees are often used in data mining and are one of the most basic algorithms. Almost everyone who has learned Data Mining knows decision trees. However, the original use of the restored decision tree is more practical and intuitive w
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