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Fjorm (software)
Fjorm is a free open source software library for fast but simple mapping of POJOs to the database. Fjorm got its name as acronym from Fast Java Object Relationship software. It targets to have less than 10% performance overhead over plain JDBC. Fjorm is designed and developed by former Google software engineer.
==Paradigm==
Some performance testing of most popular Java ORM, Hibernate, are showing large performance drawbacks for using Hibernate.〔http://polepos.sourceforge.net/results/PolePositionClientServer.pdf〕
Fjorm aims to be fast and lightweight approach. It does not support mapping of m:n relationships neither n:1 relationships due to possible performance issues. It doesn't create new query language, it uses SQL which whom most database developers are fluent and which is quite powerful and standardized. It assumes database fields will be represented as public fields in Java code and that developers shall use same name for the field as in the database. It uses Java reflection over those fields to enable to perform CRUD operations.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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