SlideShare a Scribd company logo
Coming Clean on Records
A glance at what’s coming your way
Albin Hasani
Twitter: @albihasani94
How many times have you
written..
One of these good-old
Java Classes
One of these good-old
Java Classes
Fields
One of these good-old
Java Classes
Fields
Constructor
One of these good-old
Java Classes
Fields
Constructor
Getters and setters
One of these good-old
Java Classes
Fields
Constructor
Getters and setters
equals
One of these good-old
Java Classes
Fields
Constructor
Getters and setters
equals
hashCode
One of these good-old
Java Classes
Fields
Constructor
Getters and setters
equals
hashCode
toString
Just to store a values pair
(name, age)
And how many times did you
wish it did end?
– Cicero
“When in doubt, run to the IDE.”
Demo
Some Inconveniences
• Not perfect for classes that are just wrappers for some data
• Lots of boilerplate: constructors, accessors, equals, 

hashCode, toString
• No fun to write => Delegate to the IDE
• Reading does not feel like reading developer’s intent
More code = More places for bugs
The Pair Awakens
• Part of the javafx.util package
• Pair<K, V> pair = new Pair<>(K key, V value)
• K getKey( ), V getValue( )
• It gets you a standard implementation of equals, 

hashCode, and toString
Code.. Code.. Code..
Demo
All is good.. right?
Well, not exactly
• The notion of type names is lost, only key-value pair

gets printed out
• JavaFX has been removed from JDK 11
• Its module/jar has to be included on each compilation

and runtime
• Overhead saved from the Person class => traded with

some overhead in configuration
Far from an ideal solution
Rise of the Record
• record Person (String name, int age) { }
• Transparent holders for shallowly immutable data
• Modeling data as data
• The data, the whole data, and nothing but the data
What are records?
Living with records
• Boilerplate reduction, obviously
• Good semantics => easier to read, less error prone
• Defaults for constructor, getters, equals, hashCode,

and toString
• Extension by methods, custom constructor
What do they offer?
More show me
Demo
Record-ify the Person Class
Demo
Getters
• record.fieldName( )
Demo
Custom Logic
• record.methodName( )
Demo
Custom Constructor
• public record(String name, int age) {…}
Demo
Strip the constructor down
• public record {…}
Demo
Stream Case Study
• Method computed for every comparison
yearsTo100( )
Demo
Record: Performance Gain
• Method computed for every comparison
yearsTo100( )
Demo
Making Life Simple
Java
Developers
Records
• Convenient data stores
• Ideal for DTOs and classes without much business logic
• Far less boilerplate
• Lightweight constructor syntax
• Readability over lines of code
– Obi-Wan Kenobi
“Use the record, Luke.”
Pay Java records a visit!
115  W CHIPPEWA ST - DOWNTOWN BUFFALO, NY (corner of Delaware)
If you have any questions
Please reach out directly after the talk in person
or leave me a message @albihasani94 on twitter
Albin Hasani
Twitter: @albihasani94

More Related Content

Similar to Coming Clean on Records at Tirana JUG

PostgreSQL
PostgreSQLPostgreSQL
PostgreSQL
Reuven Lerner
 
Why ruby and rails
Why ruby and railsWhy ruby and rails
Why ruby and rails
Reuven Lerner
 
The Why and How of Scala at Twitter
The Why and How of Scala at TwitterThe Why and How of Scala at Twitter
The Why and How of Scala at Twitter
Alex Payne
 
Build a modern data platform.pptx
Build a modern data platform.pptxBuild a modern data platform.pptx
Build a modern data platform.pptx
Ike Ellis
 
Episode 1 - PathToCode.com
Episode 1 - PathToCode.comEpisode 1 - PathToCode.com
Episode 1 - PathToCode.com
Jitendra Zaa
 
FiloDB: Reactive, Real-Time, In-Memory Time Series at Scale
FiloDB: Reactive, Real-Time, In-Memory Time Series at ScaleFiloDB: Reactive, Real-Time, In-Memory Time Series at Scale
FiloDB: Reactive, Real-Time, In-Memory Time Series at Scale
Evan Chan
 
SDEC2011 NoSQL concepts and models
SDEC2011 NoSQL concepts and modelsSDEC2011 NoSQL concepts and models
SDEC2011 NoSQL concepts and models
Korea Sdec
 
Design Without Types
Design Without TypesDesign Without Types
Design Without Types
Alexandru Bolboaca
 
To Lombok or not to Lombok | J-Fall 2019
To Lombok or not to Lombok | J-Fall 2019To Lombok or not to Lombok | J-Fall 2019
To Lombok or not to Lombok | J-Fall 2019
Kaya Weers
 
Hibernate ORM: Tips, Tricks, and Performance Techniques
Hibernate ORM: Tips, Tricks, and Performance TechniquesHibernate ORM: Tips, Tricks, and Performance Techniques
Hibernate ORM: Tips, Tricks, and Performance Techniques
Brett Meyer
 
JSR 335 / java 8 - update reference
JSR 335 / java 8 - update referenceJSR 335 / java 8 - update reference
JSR 335 / java 8 - update reference
sandeepji_choudhary
 
Introduction to Designing and Building Big Data Applications
Introduction to Designing and Building Big Data ApplicationsIntroduction to Designing and Building Big Data Applications
Introduction to Designing and Building Big Data Applications
Cloudera, Inc.
 
Scala Bay Meetup - The state of Scala code style and quality
Scala Bay Meetup - The state of Scala code style and qualityScala Bay Meetup - The state of Scala code style and quality
Scala Bay Meetup - The state of Scala code style and quality
Jaime Jorge
 
Introduction to MongoDB
Introduction to MongoDBIntroduction to MongoDB
Introduction to MongoDB
Sean Laurent
 
The Power of Azure DevOps
The Power of Azure DevOpsThe Power of Azure DevOps
The Power of Azure DevOps
Jeff Bramwell
 
No SQL : Which way to go? Presented at DDDMelbourne 2015
No SQL : Which way to go?  Presented at DDDMelbourne 2015No SQL : Which way to go?  Presented at DDDMelbourne 2015
No SQL : Which way to go? Presented at DDDMelbourne 2015
Himanshu Desai
 
NoSQL, which way to go?
NoSQL, which way to go?NoSQL, which way to go?
NoSQL, which way to go?
Ahmed Elharouny
 
Concurrency and Multithreading Demistified - Reversim Summit 2014
Concurrency and Multithreading Demistified - Reversim Summit 2014Concurrency and Multithreading Demistified - Reversim Summit 2014
Concurrency and Multithreading Demistified - Reversim Summit 2014
Haim Yadid
 
Web Development using Ruby on Rails
Web Development using Ruby on RailsWeb Development using Ruby on Rails
Web Development using Ruby on Rails
Avi Kedar
 
ActiveJDBC - ActiveRecord implementation in Java
ActiveJDBC - ActiveRecord implementation in JavaActiveJDBC - ActiveRecord implementation in Java
ActiveJDBC - ActiveRecord implementation in Java
ipolevoy
 

Similar to Coming Clean on Records at Tirana JUG (20)

PostgreSQL
PostgreSQLPostgreSQL
PostgreSQL
 
Why ruby and rails
Why ruby and railsWhy ruby and rails
Why ruby and rails
 
The Why and How of Scala at Twitter
The Why and How of Scala at TwitterThe Why and How of Scala at Twitter
The Why and How of Scala at Twitter
 
Build a modern data platform.pptx
Build a modern data platform.pptxBuild a modern data platform.pptx
Build a modern data platform.pptx
 
Episode 1 - PathToCode.com
Episode 1 - PathToCode.comEpisode 1 - PathToCode.com
Episode 1 - PathToCode.com
 
FiloDB: Reactive, Real-Time, In-Memory Time Series at Scale
FiloDB: Reactive, Real-Time, In-Memory Time Series at ScaleFiloDB: Reactive, Real-Time, In-Memory Time Series at Scale
FiloDB: Reactive, Real-Time, In-Memory Time Series at Scale
 
SDEC2011 NoSQL concepts and models
SDEC2011 NoSQL concepts and modelsSDEC2011 NoSQL concepts and models
SDEC2011 NoSQL concepts and models
 
Design Without Types
Design Without TypesDesign Without Types
Design Without Types
 
To Lombok or not to Lombok | J-Fall 2019
To Lombok or not to Lombok | J-Fall 2019To Lombok or not to Lombok | J-Fall 2019
To Lombok or not to Lombok | J-Fall 2019
 
Hibernate ORM: Tips, Tricks, and Performance Techniques
Hibernate ORM: Tips, Tricks, and Performance TechniquesHibernate ORM: Tips, Tricks, and Performance Techniques
Hibernate ORM: Tips, Tricks, and Performance Techniques
 
JSR 335 / java 8 - update reference
JSR 335 / java 8 - update referenceJSR 335 / java 8 - update reference
JSR 335 / java 8 - update reference
 
Introduction to Designing and Building Big Data Applications
Introduction to Designing and Building Big Data ApplicationsIntroduction to Designing and Building Big Data Applications
Introduction to Designing and Building Big Data Applications
 
Scala Bay Meetup - The state of Scala code style and quality
Scala Bay Meetup - The state of Scala code style and qualityScala Bay Meetup - The state of Scala code style and quality
Scala Bay Meetup - The state of Scala code style and quality
 
Introduction to MongoDB
Introduction to MongoDBIntroduction to MongoDB
Introduction to MongoDB
 
The Power of Azure DevOps
The Power of Azure DevOpsThe Power of Azure DevOps
The Power of Azure DevOps
 
No SQL : Which way to go? Presented at DDDMelbourne 2015
No SQL : Which way to go?  Presented at DDDMelbourne 2015No SQL : Which way to go?  Presented at DDDMelbourne 2015
No SQL : Which way to go? Presented at DDDMelbourne 2015
 
NoSQL, which way to go?
NoSQL, which way to go?NoSQL, which way to go?
NoSQL, which way to go?
 
Concurrency and Multithreading Demistified - Reversim Summit 2014
Concurrency and Multithreading Demistified - Reversim Summit 2014Concurrency and Multithreading Demistified - Reversim Summit 2014
Concurrency and Multithreading Demistified - Reversim Summit 2014
 
Web Development using Ruby on Rails
Web Development using Ruby on RailsWeb Development using Ruby on Rails
Web Development using Ruby on Rails
 
ActiveJDBC - ActiveRecord implementation in Java
ActiveJDBC - ActiveRecord implementation in JavaActiveJDBC - ActiveRecord implementation in Java
ActiveJDBC - ActiveRecord implementation in Java
 

Recently uploaded

Vulnerability Management: A Comprehensive Overview
Vulnerability Management: A Comprehensive OverviewVulnerability Management: A Comprehensive Overview
Vulnerability Management: A Comprehensive Overview
Steven Carlson
 
Perth MuleSoft Meetup July 2024
Perth MuleSoft Meetup July 2024Perth MuleSoft Meetup July 2024
Perth MuleSoft Meetup July 2024
Michael Price
 
The History of Embeddings & Multimodal Embeddings
The History of Embeddings & Multimodal EmbeddingsThe History of Embeddings & Multimodal Embeddings
The History of Embeddings & Multimodal Embeddings
Zilliz
 
Uncharted Together- Navigating AI's New Frontiers in Libraries
Uncharted Together- Navigating AI's New Frontiers in LibrariesUncharted Together- Navigating AI's New Frontiers in Libraries
Uncharted Together- Navigating AI's New Frontiers in Libraries
Brian Pichman
 
EuroPython 2024 - Streamlining Testing in a Large Python Codebase
EuroPython 2024 - Streamlining Testing in a Large Python CodebaseEuroPython 2024 - Streamlining Testing in a Large Python Codebase
EuroPython 2024 - Streamlining Testing in a Large Python Codebase
Jimmy Lai
 
Computer HARDWARE presenattion by CWD students class 10
Computer HARDWARE presenattion by CWD students class 10Computer HARDWARE presenattion by CWD students class 10
Computer HARDWARE presenattion by CWD students class 10
ankush9927
 
What's New in Teams Calling, Meetings, Devices June 2024
What's New in Teams Calling, Meetings, Devices June 2024What's New in Teams Calling, Meetings, Devices June 2024
What's New in Teams Calling, Meetings, Devices June 2024
Stephanie Beckett
 
Improving Learning Content Efficiency with Reusable Learning Content
Improving Learning Content Efficiency with Reusable Learning ContentImproving Learning Content Efficiency with Reusable Learning Content
Improving Learning Content Efficiency with Reusable Learning Content
Enterprise Knowledge
 
Mastering Board Best Practices: Essential Skills for Effective Non-profit Lea...
Mastering Board Best Practices: Essential Skills for Effective Non-profit Lea...Mastering Board Best Practices: Essential Skills for Effective Non-profit Lea...
Mastering Board Best Practices: Essential Skills for Effective Non-profit Lea...
OnBoard
 
Redefining Cybersecurity with AI Capabilities
Redefining Cybersecurity with AI CapabilitiesRedefining Cybersecurity with AI Capabilities
Redefining Cybersecurity with AI Capabilities
Priyanka Aash
 
Connector Corner: Leveraging Snowflake Integration for Smarter Decision Making
Connector Corner: Leveraging Snowflake Integration for Smarter Decision MakingConnector Corner: Leveraging Snowflake Integration for Smarter Decision Making
Connector Corner: Leveraging Snowflake Integration for Smarter Decision Making
DianaGray10
 
UX Webinar Series: Essentials for Adopting Passkeys as the Foundation of your...
UX Webinar Series: Essentials for Adopting Passkeys as the Foundation of your...UX Webinar Series: Essentials for Adopting Passkeys as the Foundation of your...
UX Webinar Series: Essentials for Adopting Passkeys as the Foundation of your...
FIDO Alliance
 
Acumatica vs. Sage Intacct _Construction_July (1).pptx
Acumatica vs. Sage Intacct _Construction_July (1).pptxAcumatica vs. Sage Intacct _Construction_July (1).pptx
Acumatica vs. Sage Intacct _Construction_July (1).pptx
BrainSell Technologies
 
Opencast Summit 2024 — Opencast @ University of Münster
Opencast Summit 2024 — Opencast @ University of MünsterOpencast Summit 2024 — Opencast @ University of Münster
Opencast Summit 2024 — Opencast @ University of Münster
Matthias Neugebauer
 
It's your unstructured data: How to get your GenAI app to production (and spe...
It's your unstructured data: How to get your GenAI app to production (and spe...It's your unstructured data: How to get your GenAI app to production (and spe...
It's your unstructured data: How to get your GenAI app to production (and spe...
Zilliz
 
UX Webinar Series: Drive Revenue and Decrease Costs with Passkeys for Consume...
UX Webinar Series: Drive Revenue and Decrease Costs with Passkeys for Consume...UX Webinar Series: Drive Revenue and Decrease Costs with Passkeys for Consume...
UX Webinar Series: Drive Revenue and Decrease Costs with Passkeys for Consume...
FIDO Alliance
 
Google I/O Extended Harare Merged Slides
Google I/O Extended Harare Merged SlidesGoogle I/O Extended Harare Merged Slides
Google I/O Extended Harare Merged Slides
Google Developer Group - Harare
 
COVID-19 and the Level of Cloud Computing Adoption: A Study of Sri Lankan Inf...
COVID-19 and the Level of Cloud Computing Adoption: A Study of Sri Lankan Inf...COVID-19 and the Level of Cloud Computing Adoption: A Study of Sri Lankan Inf...
COVID-19 and the Level of Cloud Computing Adoption: A Study of Sri Lankan Inf...
AimanAthambawa1
 
Integrating Kafka with MuleSoft 4 and usecase
Integrating Kafka with MuleSoft 4 and usecaseIntegrating Kafka with MuleSoft 4 and usecase
Integrating Kafka with MuleSoft 4 and usecase
shyamraj55
 
The Path to General-Purpose Robots - Coatue
The Path to General-Purpose Robots - CoatueThe Path to General-Purpose Robots - Coatue
The Path to General-Purpose Robots - Coatue
Razin Mustafiz
 

Recently uploaded (20)

Vulnerability Management: A Comprehensive Overview
Vulnerability Management: A Comprehensive OverviewVulnerability Management: A Comprehensive Overview
Vulnerability Management: A Comprehensive Overview
 
Perth MuleSoft Meetup July 2024
Perth MuleSoft Meetup July 2024Perth MuleSoft Meetup July 2024
Perth MuleSoft Meetup July 2024
 
The History of Embeddings & Multimodal Embeddings
The History of Embeddings & Multimodal EmbeddingsThe History of Embeddings & Multimodal Embeddings
The History of Embeddings & Multimodal Embeddings
 
Uncharted Together- Navigating AI's New Frontiers in Libraries
Uncharted Together- Navigating AI's New Frontiers in LibrariesUncharted Together- Navigating AI's New Frontiers in Libraries
Uncharted Together- Navigating AI's New Frontiers in Libraries
 
EuroPython 2024 - Streamlining Testing in a Large Python Codebase
EuroPython 2024 - Streamlining Testing in a Large Python CodebaseEuroPython 2024 - Streamlining Testing in a Large Python Codebase
EuroPython 2024 - Streamlining Testing in a Large Python Codebase
 
Computer HARDWARE presenattion by CWD students class 10
Computer HARDWARE presenattion by CWD students class 10Computer HARDWARE presenattion by CWD students class 10
Computer HARDWARE presenattion by CWD students class 10
 
What's New in Teams Calling, Meetings, Devices June 2024
What's New in Teams Calling, Meetings, Devices June 2024What's New in Teams Calling, Meetings, Devices June 2024
What's New in Teams Calling, Meetings, Devices June 2024
 
Improving Learning Content Efficiency with Reusable Learning Content
Improving Learning Content Efficiency with Reusable Learning ContentImproving Learning Content Efficiency with Reusable Learning Content
Improving Learning Content Efficiency with Reusable Learning Content
 
Mastering Board Best Practices: Essential Skills for Effective Non-profit Lea...
Mastering Board Best Practices: Essential Skills for Effective Non-profit Lea...Mastering Board Best Practices: Essential Skills for Effective Non-profit Lea...
Mastering Board Best Practices: Essential Skills for Effective Non-profit Lea...
 
Redefining Cybersecurity with AI Capabilities
Redefining Cybersecurity with AI CapabilitiesRedefining Cybersecurity with AI Capabilities
Redefining Cybersecurity with AI Capabilities
 
Connector Corner: Leveraging Snowflake Integration for Smarter Decision Making
Connector Corner: Leveraging Snowflake Integration for Smarter Decision MakingConnector Corner: Leveraging Snowflake Integration for Smarter Decision Making
Connector Corner: Leveraging Snowflake Integration for Smarter Decision Making
 
UX Webinar Series: Essentials for Adopting Passkeys as the Foundation of your...
UX Webinar Series: Essentials for Adopting Passkeys as the Foundation of your...UX Webinar Series: Essentials for Adopting Passkeys as the Foundation of your...
UX Webinar Series: Essentials for Adopting Passkeys as the Foundation of your...
 
Acumatica vs. Sage Intacct _Construction_July (1).pptx
Acumatica vs. Sage Intacct _Construction_July (1).pptxAcumatica vs. Sage Intacct _Construction_July (1).pptx
Acumatica vs. Sage Intacct _Construction_July (1).pptx
 
Opencast Summit 2024 — Opencast @ University of Münster
Opencast Summit 2024 — Opencast @ University of MünsterOpencast Summit 2024 — Opencast @ University of Münster
Opencast Summit 2024 — Opencast @ University of Münster
 
It's your unstructured data: How to get your GenAI app to production (and spe...
It's your unstructured data: How to get your GenAI app to production (and spe...It's your unstructured data: How to get your GenAI app to production (and spe...
It's your unstructured data: How to get your GenAI app to production (and spe...
 
UX Webinar Series: Drive Revenue and Decrease Costs with Passkeys for Consume...
UX Webinar Series: Drive Revenue and Decrease Costs with Passkeys for Consume...UX Webinar Series: Drive Revenue and Decrease Costs with Passkeys for Consume...
UX Webinar Series: Drive Revenue and Decrease Costs with Passkeys for Consume...
 
Google I/O Extended Harare Merged Slides
Google I/O Extended Harare Merged SlidesGoogle I/O Extended Harare Merged Slides
Google I/O Extended Harare Merged Slides
 
COVID-19 and the Level of Cloud Computing Adoption: A Study of Sri Lankan Inf...
COVID-19 and the Level of Cloud Computing Adoption: A Study of Sri Lankan Inf...COVID-19 and the Level of Cloud Computing Adoption: A Study of Sri Lankan Inf...
COVID-19 and the Level of Cloud Computing Adoption: A Study of Sri Lankan Inf...
 
Integrating Kafka with MuleSoft 4 and usecase
Integrating Kafka with MuleSoft 4 and usecaseIntegrating Kafka with MuleSoft 4 and usecase
Integrating Kafka with MuleSoft 4 and usecase
 
The Path to General-Purpose Robots - Coatue
The Path to General-Purpose Robots - CoatueThe Path to General-Purpose Robots - Coatue
The Path to General-Purpose Robots - Coatue
 

Coming Clean on Records at Tirana JUG