kingers Posted June 5 Report Share Posted June 5 Java Data Oriented Programming Masterclass Published 5/2025 MP4 | Video: h264, 1920x1080 | Audio: AAC, 44.1 KHz Language: English | Size: 2.87 GB | Duration: 9h 48mMaster the Modern Java: Records, Pattern Matching, and Sealed Types for Clean Domain Models and Smarter Error Handling What you'll learn Understand the core principles of Data Oriented Programming (DOP) and how it differs from traditional Object Oriented Programming (OOP) Use Java Records to model immutable data structures cleanly and concisely Design clear and controlled hierarchies using sealed classes and interfaces Handle domain-specific errors using algebraic data types (ADTs) and sealed hierarchies Replace verbose inheritance-based models with expressive, data-driven design Use guarded and nested patterns to handle complex business rules with ease Refactor legacy OOP codebases into modern, maintainable DOP-style architectures Understand how modern Java features lead to better readability Build real-world applications using pure data models, functional logic, and modern Java syntax Model business rules, responses, and error cases using type-safe alternatives to exceptions Learn how to use records and sealed types in serialization for clean APIs Gain practical experience through a hands-on project Requirements Knowledge on Java It is a Hands-On course. You should be willing to write code! Comfortable with Indian Accent Patience To Learn! Description Lets deep dive into Data Oriented Programming (DOP) in Java. A modern, practical, and forward-looking programming paradigm that is reshaping how Java applications are designed and developed.In this masterclass, you will learn how to write clearer, safer, and more maintainable Java code by shifting your mindset from objects and inheritance to data and behavior separation. Through hands-on lessons and real-world use cases, you will discover how to leverage Java's latest language features Records, Sealed Types, and Pattern Matching to build data-centric applications that are easy to reason about and evolve.What You Will LearnCrash Courses on Key Modern Java FeaturesRecords: Learn how Java Records simplify data modeling, enforce immutability, and reduce boilerplate & when to choose records over classes.Sealed Types: Master sealed classes and interfaces to build expressive, restricted hierarchies and eliminate misuse of inheritance.Pattern Matching: Simplify conditionals using pattern matching with switch expressions, including nested and guarded patterns.Foundations of Data Oriented ProgrammingUnderstand the principles of DOP and how it contrasts with traditional OOP.Dive into Algebraic Data Types (ADTs) in Java using Records and Sealed Types to model domain logic precisely and safely.Practical Use Cases and Real-World IntegrationImplement DOP in real-world scenarios, from API modeling to complex business rules.Serialize and deserialize sealed hierarchies using Jackson including how to work with polymorphic types in JSON.Explore data modeling, validation logic, and how DOP can simplify state machines, complex business workflows.Better Error HandlingUse sealed hierarchies to represent all possible error cases.Apply pattern matching to handle errors in a concise and exhaustive way. No missed edge cases. Hands-On Final ProjectWhy Take This Course?This course is designed for Java developers who want to:Stay ahead with modern Java features Write more declarative, composable, and readable codeReplace legacy boilerplate with expressive data modelsUnderstand the real value of Records, Sealed Types, and Pattern Matching beyond syntaxLearn data oriented thinking, ADTs, and functional ideas without leaving JavaWhether you are building APIs, business systems or modern backend services, this course will transform how you model, process, and reason about data in Java. Overview Section 1: Introduction Lecture 1 Before You Enroll Section 2: Records Lecture 2 *** Resource *** Lecture 3 Project Setup Lecture 4 How Records Work Lecture 5 Code With Me & Package Structure Lecture 6 Record Equality Lecture 7 Canonical Constructor Lecture 8 CompactConstructor Lecture 9 Compact Constructor - Validation Lecture 10 Non-Canonical Constructor Lecture 11 Are Records Immutable? Lecture 12 Accessor Method Override Lecture 13 Nullable Fields Lecture 14 No Extra Instance Fields Lecture 15 Static Members Lecture 16 Records Implementing Interface Lecture 17 Reflection Lecture 18 Organizing Records Lecture 19 Summary Section 3: Sealed Types Lecture 20 Need For Sealed Types Lecture 21 Sealed Type Demo - Part 1 Lecture 22 Sealed Type Demo - Part 2 Lecture 23 Sealed Interface With Records Lecture 24 [Clarification] - Records With Side Effects!! Lecture 25 Summary Section 4: Pattern Matching Lecture 26 Is instanceof Bad? Lecture 27 Pattern Matching - instanceof Lecture 28 Switch Expression Lecture 29 Type Pattern Lecture 30 Pattern Label Dominance Lecture 31 Guarded Pattern Lecture 32 Unnamed Variable Lecture 33 Record Pattern Lecture 34 Nested Record Pattern Lecture 35 Switch Exhaustiveness Lecture 36 Summary Section 5: Principles Of Data Oriented Programming Lecture 37 Introduction To Data Oriented Programming Lecture 38 Algebraic Data Types Lecture 39 Sealed Record - Pattern Matching - Demo 1 Lecture 40 Sealed Record - Pattern Matching - Demo 2 Lecture 41 Enum vs Sealed Lecture 42 Data Oriented Programming Principles Lecture 43 Importance Of Types Lecture 44 [Clarification] - Can Records Have Methods? Lecture 45 Summary Section 6: Domain Modeling Lecture 46 Domain Modeling Lecture 47 Modeling State Change Lecture 48 Loan Application Workflow - Requirements Lecture 49 Loan Models Lecture 50 Modeling Loan Status & Processor Lecture 51 Loan State Transition - Implementation - Part 1 Lecture 52 Loan State Transition - Implementation - Part 2 Lecture 53 Loan Workflow - Demo Lecture 54 [Clarification] - Why Does Loan Status Contain Loan? Lecture 55 Summary Section 7: Modeling Uncertainty With Types Lecture 56 Option Type Lecture 57 Either Type Lecture 58 [Clarification] - What About More Than 2 Options? Section 8: Error Handling Lecture 59 Problems With Checked Exceptions Lecture 60 Error Handling With Sealed Types Lecture 61 Generic Result Type - Part 1 Lecture 62 Generic Result Type - Part 2 Lecture 63 [Clarification] - Is Throwing Exception Bad? Section 9: Polymorphic Deserialization Lecture 64 Polymorphic Deserialization - Introduction Lecture 65 Auto Deduction Lecture 66 Property Based Deduction Lecture 67 Mixin Lecture 68 Summary Section 10: [Application Development] - Order Workflow Processing - Phase 1 Lecture 69 *** Resource *** Lecture 70 Order Processing System Lecture 71 External Services Lecture 72 Order Workflow Discussion Lecture 73 Implementation Discussion Lecture 74 Project Setup Lecture 75 Code With Me Lecture 76 Creating Models - Part 1 Lecture 77 Creating Models - Part 2 Lecture 78 Creating Models - Part 3 Lecture 79 Modeling Errors Lecture 80 Application Exceptions Lecture 81 [Clarification] - Why Do We Have Interface For Single Implementation? Lecture 82 Product Client - Implementation Lecture 83 Customer Client & Payment Client Lecture 84 Billing Client & Shipping Client Lecture 85 Request Validator Service Lecture 86 Price Calculator Lecture 87 Payment & Billing Service Lecture 88 Shipping Service Lecture 89 Order States Lecture 90 Order Orchestrator - State Transition - Part 1 Lecture 91 Order Orchestrator - State Transition - Part 2 Lecture 92 [Clarification] - Do We Need Fulfilled State? Lecture 93 Order Service & Mapper Lecture 94 Order REST Controller Lecture 95 @ControllerAdvice - Problem Detail Lecture 96 Application Exception Handling Lecture 97 Logging Interceptor Lecture 98 Application Configuration Lecture 99 Jackson Mixin Lecture 100 Final Demo Preparation Lecture 101 Final Demo Lecture 102 [Clarification] - Order Cancellation Workflow Orchestrator Section 11: [Application Development] - Order Workflow Processing - Phase 2 Lecture 103 *** Resource *** Lecture 104 Phase 2 - Adding Support For Coupon Lecture 105 [Clarification] - Why Do We Call Coupon Service From Request Validator? Lecture 106 External Service Lecture 107 Modeling Coupon Lecture 108 Coupon None vs Optional Coupon Lecture 109 Updating Other Models Lecture 110 Coupon Client Lecture 111 Request Validator Changes For Coupon Lecture 112 Applying Coupon Lecture 113 Application Configuration Changes Lecture 114 Phase 2 - Final Demo Section 12: [Application Development] - Order Workflow Processing - Phase 3 Lecture 115 *** Resource *** Lecture 116 Phase 3 - Requirements Discussion Lecture 117 External Services Lecture 118 Modeling Shipping Status Lecture 119 Declined Shipping - Domain Error Lecture 120 Handling Refund, Invoice, Declined Shipping - Part 1 Lecture 121 Handling Refund, Invoice, Declined Shipping - Part 2 Lecture 122 Updating Orchestrator For Declined Shipping Lecture 123 Application Exception Handling Lecture 124 Phase 3 - Final Demo Section 13: Persistence Lecture 125 Sealed Types With Persistence Lecture 126 1 Table For All Subclasses Lecture 127 1 Table Per Subclass Lecture 128 What About Document DB? Section 14: Whats Next? Lecture 129 Whats Next? 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