Search Results for "patterns"
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Showing 26 open source projects for "patterns"
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Spring Integration
Provides an extension of the Spring programming model
Extends the Spring programming model to support the well-known Enterprise Integration Patterns. Spring Integration enables lightweight messaging within Spring-based applications and supports integration with external systems via declarative adapters. Those adapters provide a higher-level of abstraction over Spring’s support for remoting, messaging, and scheduling. Spring Integration’s primary goal is to provide a simple model for building enterprise integration solutions while maintaining the separation of concerns that is essential for producing maintainable, testable code. -
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Android Interview Questions
Your Cheat Sheet For Android Interview
...Modern practices are addressed as well—Kotlin language features, coroutines, Jetpack components, MVVM/MVI architecture, dependency injection, and testing strategies. Performance and reliability topics receive attention, such as memory management, threading, WorkManager, networking, and offline storage patterns. The content favors concise, practical answers that interviewers expect, helping candidates rehearse concepts and trade-offs rather than memorize trivia. It’s equally useful for brushing up before an interview and for leveling up day-to-day Android engineering knowledge. -
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Java and Spring Tutorials
Getting Started with Spring Boot 3
...The repository is organized into multiple modules, each targeting specific technologies or frameworks, making it easy for developers to explore topics independently. It emphasizes best practices, clean code structure, and production-ready patterns, allowing learners to not only understand theoretical concepts but also apply them in real applications. The project is continuously updated to reflect modern development trends and evolving technologies, ensuring relevance for both beginners and experienced developers. -
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OWASP Find Security Bugs
The SpotBugs plugin for security audits of Java web applications
...Plugins are available for Eclipse, IntelliJ / Android Studio and NetBeans. Command line integration is available with Ant and Maven. Can be used with systems such as Jenkins and SonarQube. Extensive references are given for each bug patterns with references to OWASP Top 10 and CWE. -
Secure File Transfer for Windows with Cerberus by RedwoodCerberus supports unlimited users and connections on a single IP, with built-in encryption, 2FA, and a browser-based web client — all deployable in under 15 minutes with a 25-day free trial.
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From Java To Kotlin
Your Cheat Sheet For Java To Kotlin
...Examples illustrate side-by-side Java and Kotlin snippets, revealing opportunities to reduce boilerplate and improve readability. The guide includes best practices for coroutine usage, collection operations, and scoping functions that make asynchronous and functional patterns feel natural. It also discusses interoperability and migration strategies so mixed-language projects remain stable during the transition. The result is a concise playbook that helps teams adopt Kotlin with confidence, writing safer and more maintainable code without losing touch with the underlying platform. -
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RE2/J
linear time regular expression matching in Java
...It achieves this efficiency by simulating all possible matches in a single pass using a nondeterministic finite automaton (NFA), ensuring predictable and safe performance even with complex patterns. This makes RE2/J ideal for applications that must handle user-supplied regular expressions securely without the risk of denial-of-service through regex backtracking. While it omits some advanced features like backreferences and certain Java regex options, it supports the vast majority of practical expressions used in production code. ... -
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QR Code generator library
High-quality QR Code generator library in Java, TypeScript/JavaScript
This project aims to be the best, clearest library for generating QR Codes. My primary goals are flexible options and absolute correctness. The secondary goals are compact implementation size and good documentation comments. This work is an independent implementation based on reading the official ISO specification documents. I believe that my library has a more intuitive API and shorter code length than competing libraries out there. The library is designed first in Java and then ported to... -
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Spring AI
An Application Framework for AI Engineering
Spring AI is a framework within the Spring ecosystem that simplifies the integration of artificial intelligence capabilities into Java applications by providing abstractions over various AI services and models. It is designed to align with familiar Spring development patterns, allowing developers to incorporate AI features such as chat, embeddings, and prompt handling using consistent APIs. The framework supports multiple providers, including OpenAI, Azure OpenAI, and other compatible services, enabling flexibility in deployment strategies. It focuses on production readiness by offering features such as configuration management, observability, and integration with Spring Boot applications. ... -
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LaTeX Examples
Examples for the usage of LaTeX
LaTeX-examples is a repository collecting a variety of example documents and snippets demonstrating LaTeX features, usage patterns, and common templates. It acts as a playground for learning LaTeX syntax, macros, formatting tricks, and document structuring practices. Files include sample articles, reports, book chapters, presentations (using Beamer), tables, mathematical typesetting examples (equations, aligned systems, integrals, matrices), custom macros, and styling. -
Train ML Models With SQL You Already KnowBuild and deploy ML models using familiar SQL. Automate data prep with built-in Gemini. Query 1 TB and store 10 GB free monthly.
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java-pdf-table-extractor-lib
Java Pdf Table extraction library
The command line application is an example of usage of the Java library. The library is based on pdfbox library and works by looking for the layout of each selected pdf page, and looking for table structure patterns. After calling the library (passing the pdf filename, and the page range), the result is a List<PdfTextElement>. PdfTextElement is an interface that has two implementations. * A basic text (outside the tables) * And PdfTextTabulaElement, for table structures. That implementation allows reading table dimensions and the text of each cell of the table. ... -
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mall-swarm
Microservices edition of the mall e-commerce system
...The repository is structured to show how cross-service concerns like service registry, configuration center, monitoring, distributed transactions, API gateway and messaging are done in microservice architecture. It is used as a teaching platform to help engineers migrate from monolith to microservices, grasp the patterns, pitfalls and infrastructure considerations (e.g., Nacos, Seata). The documentation includes diagrams of system architecture, business architecture, service organization, and shows how to set up on Kubernetes. -
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OpenAI-Java
OpenAI Api Client in Java
...It is designed to make it easier for Java applications to call endpoints like chat completions, embeddings, function calling, streaming, and other model services using idiomatic Java patterns. You configure the client (often via environment variables or system properties), then build parameter objects (e.g. ChatCompletionCreateParams) and invoke methods like client.chat().completions().create(...) to send requests in a type-safe way. The library also supports streaming APIs, where the response arrives in chunks, using helpers like ChatCompletionAccumulator to accumulate partial responses into a full object. ... -
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Spring Hand Penetration Column
Aims to learn Spring source code and understand principles of Spring
...The project is especially useful for Java developers who find the full Spring source code too large or difficult to approach directly. It also connects implementation details with design patterns and architectural reasoning. -
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XUI
A simple and elegant Android native UI framework
XUI is a lightweight Android native UI framework that provides a comprehensive set of components and design styles to simplify mobile interface development. It aims to reduce the complexity of building Android UIs by offering a unified and consistent design system with ready-to-use components. The library includes a wide range of UI elements such as buttons, text inputs, dialogs, pickers, navigation bars, and more, covering most common development needs. It is designed to be easy to... -
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Volley
HTTP library that makes networking for Android apps
...Error handling, retries with backoff, and request prioritization are first-class, making it easier to handle flaky mobile networks. While Android has other HTTP stacks, Volley’s value is in opinionated, high-level primitives that fit common app patterns without pulling in heavy dependencies. -
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Spring Cloud Examples
Spring Cloud learning cases, service discovery, service governance
The Spring Cloud Examples repository appears to be a collection of sample applications and demos that illustrate how to use Spring Cloud and related cloud-native patterns in real-world microservice or distributed-service contexts. It provides working codebases showing how to wire together service discovery, configuration, inter-service communication, and possibly resilience patterns — giving developers a hands-on playground rather than theoretical documentation. By studying the examples, one can understand how Spring Cloud works in practice: how to structure services, how to configure them, and how they interact under realistic conditions. ... -
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threadandjuc
High performance three-high-import import system
...The project covers topics such as threads, locks, synchronization, thread pools, concurrent collections, and high-performance data handling. It is especially useful for Java developers preparing for interviews or improving their understanding of production-level concurrency patterns. Some material also explores large-scale import and high-throughput reporting scenarios, connecting theory to real performance problems. Its main value is giving learners a structured way to study Java concurrency beyond isolated code snippets. -
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ProgressManager
Listen the progress of downloading and uploading in Okhttp
...The project supports integration with Glide and other Android networking workflows, enabling developers to track image loading and resource downloads without extensive boilerplate code. Its architecture emphasizes minimal intrusion into existing networking stacks while maintaining compatibility with common Android development patterns. ProgressManager is widely used in applications requiring responsive file transfer interfaces and efficient network progress monitoring. -
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okhttp-utils
okhttp's helper class
okhttp-utils is a utility wrapper around the popular OkHttp networking library in Android that simplifies HTTP request creation, execution, and response handling for developers building mobile applications. Instead of writing verbose setup and callback code for each request, OkHttpUtils provides fluent builder patterns to configure GET, POST, file upload, download, and form requests in a more readable and concise way. It includes built-in callbacks for parsing JSON into objects, handling errors, updating UI threads, and reporting progress for file operations, reducing boilerplate and improving developer productivity. OkHttpUtils also supports request tagging and cancellation, enabling clean lifecycle management especially in activities or fragments where you want to avoid leaks. ... -
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AndroidEventBus
Library for android, simplifies communication between services
...It allows developers to define and post custom events that can be observed by multiple parts of an app, such as UI controllers, services, or background workers, without requiring direct references between senders and receivers. Unlike simple observer patterns, AndroidEventBus typically integrates with Android lifecycles so that subscribers are automatically registered, paused, or cleaned up based on activity/fragment state — reducing memory leaks and errant behavior during configuration changes. The library aims to simplify common inter-component messaging tasks (like posting a login success event or notifying multiple listeners of state changes) while preserving type safety and performance. -
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cairo4j
Java bindings to cairo
...JNI code is automatically generated, thanks to Hawtjni library; - Supported on Windows, Linux and Mac; - Draw directly to an AWT Canvas through JAWT; Missing features: - User fonts and raster source patterns are not implemented yet. -
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JSON Search, Other Utilities
Lightweight utility classes that complement the standard libraries.
...Most of the classes in this package are standalone files without dependencies on other classes inside or outside of this package. Some classes are more procedural than others in the sense that they are simply collections of static methods. Some classes are meant to enforce certain design patterns. This is an ongoing project. Java documentation is available on project website: http://jsonjavasearchmore.sourceforge.net -
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Survey Developer Library 4 Java
Java framework with reusable patterns and classes
A generic Java framework with reusable patterns and classes for enhanced development -
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JAgile (or "Java Agile") is a simple but practical framework in Java. It implements some JEE Patterns as Transfer Object, Session Facade, Business Object, DAO Factory and DAO. Its unique persistence implementation is the Hibernate Framework.
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