Mark Struberg created BVAL-154:
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Summary: reduce memory footprint of BeanMeta
Key: BVAL-154
URL: https://issues.apache.org/jira/browse/BVAL-154
Project: BVal
Issue Type: Bug
Components: jsr303
Affects Versions: 1.1.2
Reporter: Mark Struberg
Assignee: Mark Struberg
Fix For: 1.1.3, 2.0.0
While doing some performance analysis on a project I figured that we store way
too many BeanMeta instances.
This seems to come from other frameworks checking whether a class has
BeanValidation features on them.
It also happens within our own CDI BValExtension.
The result is that we also cache the BeanMeta for every class which gets
queried, regardless whether it has some validation on them or not.
We should introduce a 'negative cache' which contains classes which are known
to have no validation on them
{code:java}
getConstraintForClass(Calss c) {
if (negativeCache.contains(c))
return new EmptyBeanDescription(c);
...
if (noValidationFeatureFound)
negativeCache.add(c);
}
{code}
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