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OrientDB

  Analyzed 4 months ago

OrientDB is a deeply scalable Document-Graph DBMS with the flexibility of the Document databases and the power to manage links of the Graph databases. It can work in schema-less mode, schema-full or a mix of both. Supports advanced features such as ACID Transactions, Fast Indexes, Native and SQL ... [More] queries. It imports and exports documents in JSON. Graphs of hundreads of linked documents can be retrieved all in memory in few milliseconds without executing costly JOIN such as the Relational DBMSs do. OrientDB uses a new indexing algorithm called MVRB-Tree, derived from the Red-Black Tree and from the B+Tree with benefits of both: fast insertion and ultra fast lookup. [Less]

747K lines of code

0 current contributors

4 months since last commit

23 users on Open Hub

Activity Not Available
5.0
 
0 Reviews
I Use This
Mostly written in Java
Licenses: apache_2
Tags database dbms distributed embedded fast graph graphdb graphtheory java lightweight nosql sql

Roma Meta Framework

  Analyzed 4 months ago

Roma is an Open Source initiative to make Java application development easy. The approach is totally DDD: let's think to the domain of your application and Roma will make the rest: persistence (database), presentation (HTML + Ajax), logging, user management, sessions, workflow, scheduler, etc. ... [More] Roma is a Meta Framework namely a tool that aims to remove dependencies between your application code and frameworks and tools you use. This allows you to change the technology at zero cost without any changes to your application code. Roma is also a MDA implementation since takes its concepts and philosophy but it's totally based on POJOs without to learn other micro languages and complex standards. [Less]

297K lines of code

0 current contributors

over 8 years since last commit

12 users on Open Hub

Activity Not Available
4.0
   
0 Reviews
I Use This
Mostly written in Java
Licenses: apache_2
Tags ajax aspect case ddd domain echo2 framework java jdo jee lightweight mda 10 more...

ICT Romulus

  Analyzed about 18 hours ago

4.2K lines of code

0 current contributors

about 14 years since last commit

4 users on Open Hub

Inactive
5.0
 
0 Reviews
I Use This
Mostly written in Java
Licenses: No declared licenses
Tags cross-platform development framework java library meta metamodel metaprogramming mushup programming soa technology 1 more...

Orient ODBMS

  Analyzed about 1 hour ago

Orient is a true ODBMS (Object Data Base Management System) written in C++. It can store and retrieve objects to database without any conversion. With Orient you don't write a line of code to persist objects. The application will be much faster and the development process strongly reduced: from 50% ... [More] to 80% less code. Orient supports: - Java using Sun JDO technology - C++ using ODMG 3.0 worldwide standard - SQL-92 subset with extension for objects to query the database - XML using XMLObjects Orient is not supported anymore. Check out "orient db" project instead: https://www.ohloh.net/p/orient-db [Less]

51K lines of code

0 current contributors

almost 19 years since last commit

1 users on Open Hub

Inactive
5.0
 
0 Reviews
I Use This
Mostly written in Java
Licenses: apache_2
Tags database database_server dbms jdo object object_oriented objectoriented odbms odl odmg oodbms persistence