executing the rule and other actions.
the inference (rule) engine of RBEs corresponds to human thinking. The rule engine has two ways of reasoning: Forward-chaining) and induction (backward-chaining ). The explain method starts from an initial fact and constantly applies rules to draw conclusions (or execute specified actions ). The induction rule is to start from assumptions and constantly look for facts that conform to the assumptions. rete algorithm is currently the most efficient fo
a fully or partially matched object requires memory, it provides the characteristics of speed and scalability. When all the conditions of a rule are fulfilled, this is the endFull match. Only part of the condition is satisfied, which is a partial match. (I think the engine has its own memory in each node to store the objects that meet that node's condition, which causes if an object is an exact match, thatThis object will have its image in the corresponding memory of each node. )Reference Links
rules. The "chained" response to this rule is entirely driven by data in the workspace.The efficiency of the rule condition matching determines the performance of the engine, the engine needs to quickly test the data objects in the workspace, find the eligible rules from the loaded rule set, and generate the rule execution instance. Charles L. Forgy of the University of Carnegie Mellon, USA, in 1982, invented a rete algorithm that solves this problem well. At present, the world's top commercial
using the instanceof operator, which is then further used to compare the property.instanceof longaddress, Address.country = = "UK")View CodeDate charactersIn addition to supporting Java standard characters, the rule syntax also supports date characters. Drools default supported date format is "dd-mmm-yyyy", you can change the default date format by setting the value of the system variable "Drools.dateforma
Convert a string in the format of "yyyy-mm-dd" to Java. SQL. Date:
Simpledateformat bartdateformat = new simpledateformat ("yyyy-mm-dd "); String datestringtoparse = "2007-7-12 "; Try { Java. util. Date = bartdateformat. parse (datestringtoparse ); Java. SQL. Date sqldate = new java. SQL. date (date. gettime ());S
Java. util. Date and Java. SQL. Date, java. SQL. Time, java. SQL. Timestamp interchange, java. SQL. timestamp
1. SQL time type to util time type
Principle: java. SQL. date, java. SQL. t
Some suggestions for beginners of Java-Java knowledge points (Java basics) and java knowledge points
The purpose of this article is to summarize some of my experiences in using java over the years, mainly related to some basic java
Some suggestions for beginners of Java ---- Java knowledge points (Java basics), some suggestions ---- java
The purpose of this article is to summarize some of my experiences in using java over the years, mainly related to some basic ja
The overall design of a real project Java architecture DesignTags: javajava architecture design Spring mvcmybatis 2015-06-12 23:10 1891 people read comments (6) Favorites Report Category: Java (2)
Copyright NOTICE: This article is the original article of the blogger, without the permission of the blogger may not be reproduced.
Directory (?) [+] 1 Overall architecture module diagram 1.1 Abstract schema modul
1 Overall architecture module diagram
1.1 Abstract schema module diagram
1.2 Specific technical framework module diagram
As shown above, the framework mainly includes:
• MVC Development Framework
L Workflow Technology
L Users, permissions, role management
The details are detailed below. 2 MVC Scenario 2.1 View Layer Technology Scheme (view)
In the application of common development framework, it is used in the view layer: JSP, JSF,FREEMARKER,XSLT, velocity, etc. jsp: a common view layer tha
Java basics-java language overview, java-java Overview
I. Two types of computer programming
1. process-oriented model-linear execution is characteristic, and code is considered to act on data.
2. object-oriented model-organizes programs around its data (that is, objects) and the interfaces defined for this data. In fac
problems with JSF headaches is being overly reliant on HTTP POST. This makes it difficult to add a JSF Web page to a bookmark, which is accessed via HTTP GET. But with seam, it's easy to build a rest page. Seam provides a series of JSF component tags and annotations that add Web-friendly and page efficiency to JSF apps.At the same time, seam expands the EJB3-to-pojo component pattern, from the Web tier to the business layer, with state contexts. Further, seam incorporates a number of major othe
development, familiar with the common sub-table technology, skilled in the preparation of SQL and stored procedures;5, familiar with NoSQL database, such as Hbase,mongodb;6, familiar with the common middleware technology, such as Redis,kafka,elastic-search,mycat,dubbo,drools,druid;2, proficient in the mainstream server development software: SPRING/HIBERNATE/MYBATIS/TOMCAT;3, familiar with the TCP/IP protocol, proficient in webservice development;4, s
CS2230 Computer Science Ii:data StructuresHomework 7Implementing sets withBinary Search TreesPointsGoals for this assignment? Learn about the implementation of sets using binary search trees, both unbalanced andBalanced? Implement methods for a navigableset, including contains and remove? Get more practice Writing JUnit tests? Get more practice with version controlPurposeBinary Search trees can is used to build efficient sets, perform lookups and inserts in? (??? ?)Time, which is fairly efficien
Multithreaded Development package
19.SmartPagination Paging data paging processing 20. DOM4J XML Parsing class
20.xml analysis of four modes dom,sax,jdom,dom4j
21.SLF4J log processing software package, the bottom can support log4j,commonlog,jdklog and so on.
22.Apache MINA TCP/IP communication non-blocking Framework, can achieve high-performance NIO communication mechanism.
23.JBossNetty provides an open source framework with 22,jboss for high concurrent connections.
24.httpclient Open So
The first part goes into the Java1.java technology systemSun's officially defined Java technology System includes several components:
Java Program Set Language
Java virtual machines on a variety of hardware platforms
class file format
Java API Class Libr
: Network Disk DownloadContent Introduction······This book provides a comprehensive overview of the new features of the milestone version of Java 8, including lambdas, streaming, and functional programming. With functional programming features, you can make your code more concise, and you can automate the use of multicore hardware. The book is divided into four parts: basic knowledge, functional data processing, high-efficiency
Blog
Community
Homepage
New essay
Contact
Management
Subscription
Post-42-0 comments-72 differences between java. util. Date and java. SQL. Date and the application of java. util. Date are used in addition to SQL statements.
Java. SQL. Date is used for SQL statements. It contains only the Date but not the time pa
Xiaokang will accompany you to learn JAVA -------- simple JAVA program, java -------- java
Analyzes a simple and complete JAVA program
Example: TestJava2_1.java
01 // TestJava2_1.java,
The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion;
products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the
content of the page makes you feel confusing, please write us an email, we will handle the problem
within 5 days after receiving your email.
If you find any instances of plagiarism from the community, please send an email to:
info-contact@alibabacloud.com
and provide relevant evidence. A staff member will contact you within 5 working days.