[jbossseam-issues] [JBoss JIRA] Updated: (JBSEAM-2093) Optimize getting Id in Seam code for better performance

Optimize getting Id in Seam code for better performance ------------------------------------------------------- Key: JBSEAM-2093 URL: http://jira.jboss.com/jira/browse/JBSEAM-2093 Project: JBoss Seam Issue Type: Feature Request Components: Performance and Scalability Reporter: Mikhail Grushinskiy Priority: Minor Fix For: 2.1.0.GA Attachments: AnnotationsTest.java This sequence of calls (used in PersistenceProvider) is quite slow Entity.forClass(bean.getClass()).getIdentifier(bean); 1) Entity.forClass() is reading annotations using JDK 5 methods (JDK 5 annotation reading is not that fast). Can it be cached? 2) JDK 5 reflection is used to get bean id (which is slower than optmized reflection with cglib) 3) There could be other reasons as well. I think repetitive calling of this sequence under profiler will give better picture. from PersistenceProvider.java /** * Get the value of the entity identifier attribute. * * @param bean a managed entity instance */ public Object getId(Object bean, EntityManager entityManager) { return Entity.forClass( bean.getClass() ).getIdentifier(bean); } /** * Get the name of the entity * * @param bean * @param entityManager */ public String getName(Object bean, EntityManager entityManager) { return Entity.forClass(bean.getClass()).getName(); } /** * Get the value of the entity version attribute. * * @param bean a managed entity instance */ public Object getVersion(Object bean, EntityManager entityManager) { return Entity.forClass( bean.getClass() ).getVersion(bean); }