54 words
isLoaded(entity, attributeName) - JPA PersistenceUtil's method
Methodjavax.persistence.PersistenceUtil
boolean isLoaded(
Object entity,
String attributeName
)
Determine the load state of a given persistent attribute.
- Parameters:
entity- entity containing the attributeattributeName- name of attribute whose load state is to be determined
- Returns:
- false if entity's state has not been loaded or if the attribute state has not been loaded, else true
- Since:
- JPA 2.0
This documentation page is derived (with some adjustments) from the open source JPA 2 RI (EclipseLink)
and is available under the terms of the Eclipse Public License, v. 1.0 and Eclipse Distribution License, v. 1.0.
and is available under the terms of the Eclipse Public License, v. 1.0 and Eclipse Distribution License, v. 1.0.
Object Relational Mapping (ORM) JPA 2 providers include Hibernate, EclipseLink, TopLink, OpenJPA and DataNucleus.
Object DB is not an ORM JPA implementation but an Object Database for Java with built in JPA 2 support.
Which JPA is Faster?
See a comparison of Hibernate, EclipseLink, OpenJPA, DataNucleus, MySQL, PostgreSQL, Derby, HSQLDB, DB4O by Versant, H2 Database, SQLite and ObjectDB
in the JPA Benchmark.
