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專案描述

OrientDB is a NoSQL DBMS which can store 150,000 documents per second on common hardware. Even with a document-based database, the relationships are managed as in graph databases, with direct connections among records. You can traverse entire or parts of trees and graphs of records in a few milliseconds. It supports schema-less, schema-full, and schema-mixed modes, has a strong security profiling system based on users and roles, and supports SQL between the query languages. Thanks to the SQL layer, it's straightforward to use for people skilled in the relational world.

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2010-10-03 21:52
0.9.22

Full text index against schema fields was added. SQL UPDATE can be done against collections and maps. Support was added for the GREMLIN graph language. Regular expression support in the WHERE clause was implemented. Support for memory clusters inside a regular persistent database was added.

2010-07-30 07:25
0.9.21

A new GraphDB implementation. Import and export of the database in JSON format. A new Connection Pool, Support for lazy loaded collections and maps. A new Fetch Plan to optimize transfer between the client and server. SQL access to the record attributes. A new Logging config. New console commands (import database, export database, create class, and compare database). New annotations to control object mapping: ORawBinding, ODocumentId, and ODocumentInstance. Reached 240 unit tests. Fixes for many bugs (see the issue tracker).

2010-07-13 07:15
0.9.20

New run-time Fetch Plans to choose the fetching strategy at run-time. New database properties. POJO callbacks on serialization/deserialization. New annotation to use RAW binding. Fixes for object graph management and minor bugs.

2010-06-26 06:48
0.9.19

Support for native inheritance between Documents and POJOs. Implementation of non-unique indexes. Support for ORDER BY clause in SQL SELECT statements. Improved description on errors. Auto-registration of Remote Engine, if available. Fixes for other bugs (user loading and logical cluster casts).

2010-06-22 02:34
0.9.18

The "create link" SQL command was added to create a physical connection between records. This can be useful when importing a relational DBMS. The "inverse" form can be used to map 1-N relationships. The "import documents" console command was added to import a JSON document. The SQL command "create property" was added to add schema full properties. Status was added in OUser and checked upon login. By default, it is ACTIVE. Support of ORID in queries was implemented. Other bugs were fixed.

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