Drools

There are different ways to debug a Drools project. Here, we will write a Utility class to let you know which rules are being triggered or fired. With this approach,…

In this chapter, we will create a Drools project for the following problem statement − Depending upon the city and the kind of product (Combination of City and Product), find…

As you saw the .drl (rule file) has its own syntax, let us cover some part of the Rule syntax in this chapter. Conditions in Rules A rule can contain…

If you see the default rule that is written in the Hello World project (Sample.drl), there are a lot of keywords used which we will be explaining now. Package − Every…

Rules The heart of the Rules Engine where you specify conditions (if ‘a’ then ‘b’). Facts Facts are the data on which the rules will act upon. From Java perspective,…

To create a basic Drools program, open Eclipse. Go to Fileb → New → Project. Select Drools Project. Give a suitable name for the project. For example, DroolsTest. The next…

Drools Runtime is required to instruct the editor to run the program with specific version of Drools jar. You can run your program/application with different Drools Runtime. Click on Windows…

Here are the prerequisites to install Drools Plugin − Java 1.5 (or higher) SE JDKEclipse 4.2 (or any version) and the Drools plugin As Drools is a BRMS (Business Rule…

Drools is a business logic integration platform written in Java. This is a quick tutorial on how to use Drools in a business environment. Audience This tutorial should be useful…