Master Drools – from Intermediate to Expert

سرفصل های دوره

Speadsheet decision tables, Complex Event processing, rule templates, slidingwWindows, all with executable code examples

1. Introduction - what you need to know to write better rules

1. Drools internals intro

2. Basic components of Drools rule engine

3. Introduction to Rete, ReteOO and Phreak

4. Rete graph of a single rule

5. Rete graph of two rules that share nodes

6. Rete graph of 3 rules that share nodes

7. Rete graph with rules that use joining and not clause

8. Most important differences between Phreak and Rete algorithms

9. Rules of thumb for writing faster performing DRL

10. Section recap

2. Step-by-step code examples and how to run them locally

1.1 Example code in GitHub.html

1. Structure of code examples

3. Spreadsheet Decision Tables

1. Spreadsheet decision tables intro

2. Basic layout of a spreadsheet decision table

3. Defining multiple action columns in a spreadsheet

4. Using formulas in a spreadsheet decision table

5. Set custom DRL rule name and add a comment

6. How to place multiple rule tables in one spreadsheet.

7. Multiple rule tables in one spreadsheet. Several parameters in a single cell.

8. Join multiple fact objects in a spreadsheet decision table

9. Using forall construct as a condition in spreadsheet decision tables

10. Condition without a pattern in spreadsheet decision table

11. Set rule priority in a spreadsheet decision table

12. Sequential attribute in RuleSet

13. Using activation-groups in spreadsheet decision tables

14. Drools sequential mode

15. U Using custom labels in spreadsheed decision tables

16. Recap Spreadsheet Decision Tables

4. Rule Templates and Creating Rules Dynamically

1. Rule templates intro

2. Using Drools Rule Templates (DRT) for creating rules

3. Fetching template placholder values for from a tabular data source

4. Use Freemarker templates instead of deprecated Drools Rule Templates (DRT)

5. Declare intermediate types in DRL

6. How to declare enumerations in and read back objects of type declared in DRL

7. Create and insert objects into session that has type declared in DRL

8. Rule templates recap

5. Introduction to Complex Event Processing (CEP) with Drools

1. Complex Event Processing intro

2. Running rules repeatedly in passive mode. Using global variables.

3. Risks of using external services to pull data that the rules depend on

4. Using forall to find a suitable call that has waited the longest

5. Active and passive rule execution modes

6. Compose list of events with collect keyword and apply filtering on the results

7. Calling halt(). Mixing active and passive rule execution modes.

8. Adding different timers to a rule

9. Stream event processing mode using a time based sliding window

10. Declaring fact as event and using a length based sliding window

11. Using entry-point streams

12. Recap complex event processing

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تولید کننده: Udemy-Training