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+ | For current information, please see "About Weaving" in the ''EclipseLink Concepts Guide'': | ||
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*[[EclipseLink/UserGuide/JPA/Advanced JPA Development/Performance/Weaving/Weaving POJO Classes|Weaving POJO Classes]] | *[[EclipseLink/UserGuide/JPA/Advanced JPA Development/Performance/Weaving/Weaving POJO Classes|Weaving POJO Classes]] | ||
*[[EclipseLink/UserGuide/JPA/Advanced JPA Development/Performance/Weaving/Weaving and Java EE Application Servers|Weaving and Java EE Application Servers]] | *[[EclipseLink/UserGuide/JPA/Advanced JPA Development/Performance/Weaving/Weaving and Java EE Application Servers|Weaving and Java EE Application Servers]] | ||
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*[[EclipseLink/UserGuide/JPA/Advanced JPA Development/Performance/Weaving/Disabling Weaving with Persistence Unit Properties|Disabling Weaving with Persistence Unit Properties]] | *[[EclipseLink/UserGuide/JPA/Advanced JPA Development/Performance/Weaving/Disabling Weaving with Persistence Unit Properties|Disabling Weaving with Persistence Unit Properties]] | ||
Latest revision as of 07:44, 17 April 2013
For current information, please see "About Weaving" in the EclipseLink Concepts Guide: http://www.eclipse.org/eclipselink/documentation/latest/concepts/app_dev007.htm
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Weaving
Weaving is a technique of manipulating the byte-code of compiled Java classes. The EclipseLink JPA persistence provider uses weaving to enhance both JPA entities and Plain Old Java Object (POJO) classes for such things as lazy loading, change tracking, fetch groups, and internal optimizations.
Weaving can be performed either dynamically at runtime, when entities are loaded, or statically at compile time by post-processing the entity .class files. By default, EclipseLink uses dynamic weaving whenever possible. This includes inside an Java EE 5/6 application server and in Java SE when the EclipseLink agent is configured. Dynamic weaving is recommended as it is easy to configure and does not require any changes to a project's build process.
See the following for details: