LangChain4j is an idiomatic, open-source Java library for building LLM-powered applications on the JVM. It offers a unified API over popular LLM providers and vector stores, and makes implementing tool calling (including MCP support), agents and RAG easy. It integrates seamlessly with enterprise Java frameworks like Quarkus and Spring Boot.
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A graph database that supports more than 100+ billion data, high performance and scalability (Include OLTP Engine & REST-API & Backends)
- database
- graph-database
- graph
- gremlin
Speedment is a Stream ORM Java Toolkit and Runtime
SirixDB is an an embeddable, bitemporal, append-only database system and event store, storing immutable lightweight snapshots. It keeps the full history of each resource. Every commit stores a space-efficient snapshot through structural sharing. It is log-structured and never overwrites data. SirixDB uses a novel page-level versioning approach.
- xquery
- java
- temporal-data
- storage
Apache OFBiz is an open source product for the automation of enterprise processes. It includes framework components and business applications for ERP, CRM, E-Business/E-Commerce, Supply Chain Management and Manufacturing Resource Planning. OFBiz provides a foundation and starting point for reliable, secure and scalable enterprise solutions.
- geospatial
- ofbiz
- web-framework
- java
zerocode-tdd is a community-developed, free, open-source, outcome-driven automated testing framework for Data Pipelines, ETL, REST API, Kafka(Data Streams), Databases and Load scenarios. all defined in simple JSON or YAML — with zero coding.
- soap
- assertions
- java
- api
ATTENTION: This repository is a clone of https://gitlab.structr.com/structr/structr. All development/issue tracking has moved there. | Structr is an integrated open-source low-code development and runtime environment that uses a graph database (Neo4j).
- low-code
- low-code-development-platform
- productivity
- frontend-framework
Fast and Easy mapping from database and csv to POJO. A java micro ORM, lightweight alternative to iBatis and Hibernate. Fast Csv Parser and Csv Mapper
WebTau (web test automation) is a testing API, command line tool and a framework to write unit, integration and end-to-end tests. Test across REST-API, WebSocket, GraphQL, Browser, Database, CLI and Business Logic with a consistent set of matchers and concepts. REPL mode speeds-up tests development. Rich reporting cuts down investigation time.
Use the MongoDB query language to query your relational database, typically from frontend.
- spring-data-jpa
- spring-boot
- jpa
- hibernate
Java reimplementation of PostgREST
Code-first ORM for Spring Boot. Zero XML, Auto DDL & Fluent Join API. Define your schema in Java and enjoy dynamic SQL power.
- code-generator
- database
- dynamic-sql
- java