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Java™
by example!
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How do I get all persistent JDO instances of a class?
The JDO class to use here is the Extent. An extent represents all of the instances of a class and its subclasses. Create an extent by calling the method getExtent on a PersistenceManager object, passing it the class and a boolean indicating as to whether instances of subclasses should be included.
The following example prints out the objects made persistent in the QA "How do I get started with JDO".
UsingExtent.java:
outputs:
Further Information
Author of answer: Joris Van den Bogaert
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