Design Patterns
Design patterns implemented in Java (by iluwatar)
CQEngine
Ultra-fast SQL-like queries on Java collections (by npgall)
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| Design Patterns | CQEngine | |
|---|---|---|
| 45 | 6 | |
| 86,355 | 1,673 | |
| - | - | |
| 9.3 | 0.0 | |
| 2 days ago | 4 months ago | |
| Java | Java | |
| GNU General Public License v3.0 or later | Apache License 2.0 |
The number of mentions indicates the total number of mentions that we've tracked plus the number of user suggested alternatives.
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
Design Patterns
Posts with mentions or reviews of Design Patterns.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2023-06-03.
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I have been following the mooc java-1 from few days and i am on part-3 i want to ask some questions
After that, more practice, and then Design Patterns (as in the famous book of the "Gang of Four": "Design Patterns: Elements of Reusable Object Oriented Software"). Here I'd recommend "Head First: Design Patterns" and Java Design Patterns as well as Refactoring Guru (the sites are more reference than course).
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I made java roadmap website! Any feedbacks welcome!
For Design Patterns - any resource recommendation that misses Java Design Patterns and Refactoring Guru (also for Refactoring) as well as *Head First: Design Patterns, has failed.
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How do you structure code?
A massive list of design patterns and how they could be implemented (in Java) can be found here.
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Resources to learn how to create a 2D game engine with CPU rendering.
https://java-design-patterns.com/ has example code for things like object pools that can help with memory management.
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What are some book recommendations that don't require a specific language.
Sidenote: I would not really use the GoF Design Patterns book anymore. Too dry. I would use "Head First: Design Patterns" - much more modern, much easier to read, or Refactoring Guru or Java Design Patterns (uses Java, but again, only for illustrations).
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I want to get a book on design patterns. Would you recommend the GOF book or the Head First design patterns one?
Also: https://java-design-patterns.com and https://refactoring.guru/design-patterns
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How is an Observer pattern possible?
Use either Java Design Patterns or Refactoring Guru. Both resources are far higher quality than yours.
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Are there any quick videos/articles/resources that go over stuff not explicit taught in University?
Java Design Patterns
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Learn design pattern !
Java Design Patterns - IMO one of the most accessible sites with very easy explanations
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What are the Java design patterns suitable for the below functions in an E-commerce application?
A hint: go to Java Design Patterns and go through the patterns to figure what could fit.
CQEngine
Posts with mentions or reviews of CQEngine.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2022-05-18.
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What is the weirdest or most interesting piece of code you ever had to write?
Wrote the code to convert CQEngineCQEngine queries into Solr search queries.
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Looking for: library to turn SQL (or abstracted) to code & execute against custom backend (slice of structs)
It seems that you're looking for something like https://github.com/npgall/cqengine but unfortunately I'm not aware of any equivalent in Go. LINQ is similar. I'd probably try searching for "LINQ in go" or something like that.
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Evaluating Range Predicates over Java collections
I wonder if there's a huge difference in efficiency between RoaringBitmap and CQEngine. I used CQEngine a few years back and it turned out really great. Never tried RoaringBitmap, though.
- CQEngine for Java Tutorials/ Guides / Books?
- Ideal Datastructure for Multiple Keys mapping to Multiple Values?
- Early stage draft: Functional transformation of immutable objects
What are some alternatives?
When comparing Design Patterns and CQEngine you can also consider the following projects:
Togglz - Feature Flags for the Java platform
Lanterna - Java library for creating text-based GUIs
Modern Java - A Guide to Java 8 - Modern Java - A Guide to Java 8
FF4J - Feature Flags for Java made easy
OpenRefine - OpenRefine is a free, open source power tool for working with messy data and improving it
Codename One - Cross-platform framework for building truly native mobile apps with Java or Kotlin. Write Once Run Anywhere support for iOS, Android, Desktop & Web.
jabba - (cross-platform) Java Version Manager
failsafe - Fault tolerance and resilience patterns for the JVM
Smooks - Extensible data integration Java framework for building XML and non-XML fragment-based applications
sitemapgen4j - SitemapGen4j is a library to generate XML sitemaps in Java.
Design Patterns vs Togglz
CQEngine vs Lanterna
Design Patterns vs Modern Java - A Guide to Java 8
CQEngine vs Modern Java - A Guide to Java 8
Design Patterns vs FF4J
CQEngine vs OpenRefine
Design Patterns vs Codename One
CQEngine vs jabba
Design Patterns vs failsafe
CQEngine vs Smooks
Design Patterns vs sitemapgen4j
CQEngine vs Codename One