Java Open Source Projects Directory

...dedicated into Java open source projects

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Persistence Frameworks

hibernate

Hibernate is a powerful, ultra-high performance object/relational persistence and query service for Java. Hibernate lets you develop persistent objects following common Java idiom - including association, inheritance, polymorphism, composition and the Java collections framework. Extremely fine-grained, richly typed object models are possible. The Hibernate Query Language, designed as a "minimal" object-oriented extension to SQL, provides an elegant bridge between the object and relational worlds. Hibernate is now the most popular ORM solution for Java.

 

ibatis-sql-maps

The SQL Maps framework will help to significantly reduce the amount of Java code that is normally needed to access a relational database. This framework maps JavaBeans to SQL statements using a very simple XML descriptor. Simplicity is the biggest advantage of SQL Maps over other frameworks and object relational mapping tools. To use SQL Maps you need only be familiar with JavaBeans, XML and SQL. There is very little else to learn. There is no complex scheme required to join tables or execute complex queries. Using SQL Maps you have the full power of real SQL at your fingertips. The SQL Maps framework can map nearly any database to any object model and is very tolerant of legacy designs, or even bad designs. This is all achieved without special database tables, peer objects or code generation.

 

velosurf

Velosurf is a database mapping layer library for the Apache Velocity template engine. It provides automatic database mapping of tables and relationships without any code generation. It is a lightweight placeholder to heavy persistence systems.

 

ebean-orm

Ebean is Object Relational Mapping Persistence Layer. Ebean is designed to be easy to learn and use. It follows the mapping specification of JPA with annotations such as @Entity, @OneToOne, @OneToMany etc. Ebean also has a relational api when you want to bypass ORM in favour of using your own SQL for fetching, updating and calling stored procedures.

 

lightweightmodellayer

LML is a small (82Kb) but reliable persistence engine based in annotations and reflection. It has no dependencies and can be used for standalone and web applications. It's a clean and easy to use library for developers to forget worrying about database communication.

 

qlor

QLOR (Q-LOGIC Object Relational Mapping Framework) is a performant Object/Relational Mapping and persistence/query framework for Java. It's easy to use and deploy with other technologies. It is heightly structured and designed. Features:

 * O2O, O2M and M2M database mappings.
 * Multiple primary keys without modifying the class diagram.
 * Cascading primary keys on associations.
 * Easy inheritance and multi inheritance mapping.
 * Programmatic mappings.
 * Multi-files project mapping.
 * Declarative database encryption function.
 * Multi-database support.
 * Clean and easy to read persistence layer log and more...

 

mr-persister

Mr. Persister is an object persistence API, that makes it possible to read and write objects of any size to and from relational databases. The implemented/planned features includes easier JDBC operations via JDBC templates (Spring style), automatic connection / transaction handling, object relational mapping, dynamic reports, connection pooling, caching, replication, debugging and more.

 

daozero

Daozero reduces DAO codes based on Spring & iBatis. The old way is to write codes and invoke iBatis API explicitly, but daozero implements DAO interfaces in runtime, invokes iBatis API for developers atuomaticaly. Replace old DAOs with it directly.

 
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