[hibernate-issues] [Hibernate-JIRA] Resolved: (HV-384) Performence problem when using programatic constrain declaration

Performence problem when using programatic constrain declaration ---------------------------------------------------------------- Key: HV-384 URL: http://opensource.atlassian.com/projects/hibernate/browse/HV-384 Project: Hibernate Validator Issue Type: Bug Components: engine Affects Versions: 4.1.0.Final Environment: Java 1.6, OSGi Equinox Reporter: Jan Cuzy Assignee: Gunnar Morling Fix For: 4.2.0.Beta1 I'm using the programmatic API to declare the constrains on class. {noformat} ConstraintMapping constraintMapping = ... HibernateValidatorConfiguration config = ... config.addMapping(constraintMapping); ValidatorFactory factory = config.buildValidatorFactory();{noformat} Right now I have 73 with 745 configured constrains on them (This is rather beginning of the project, in the future numbers will be higher). It takes approx. 6 seconds to create the validator factory. I was investigating a bit and found a method initProgrammaticConfiguration in ValidatorFactoryImpl class, which calls vary often the method getConstraintConfig() on the ConstraintMapping class. This method creates always new {noformat}<A extends Annotation> Map<Class<?>, List<ConstraintDefWrapper<?>>>{noformat} based on values in its member variable {noformat} private final Map<Class<?>, List<ConstraintDef<?>>> constraintConfig{noformat} Is there any problem to cache the created map as a meber in the ConstraintMapping class? I've done {noformat} public class ConstraintMapping { private final Map<Class<?>, List<ConstraintDef<?>>> constraintConfig; private Map<Class<?>, List<ConstraintDefWrapper<?>>> newDefinitions; ... {noformat} then {noformat} public final <A extends Annotation> Map<Class<?>, List<ConstraintDefWrapper<?>>> getConstraintConfig() { *if (newDefinitions == null) {* *newDefinitions = new HashMap<Class<?>, List<ConstraintDefWrapper<?>>>();* for (Map.Entry<Class<?>, List<ConstraintDef<?>>> entry : constraintConfig.entrySet()) { List<ConstraintDefWrapper<?>> newList = new ArrayList<ConstraintDefWrapper<?>>(); for (ConstraintDef<?> definition : entry.getValue()) { Class<?> beanClass = definition.beanType; @SuppressWarnings("unchecked") ConstraintDefWrapper<A> defAccessor = new ConstraintDefWrapper<A>(beanClass, (Class<A>) definition.constraintType, definition.property, definition.elementType, definition.parameters, this); newList.add(defAccessor); } newDefinitions.put(entry.getKey(), newList); } *}* return newDefinitions; }{noformat} and then maybe also {noformat} protected final void addConstraintConfig(ConstraintDef<?> definition) { Class<?> beanClass = definition.beanType; configuredClasses.add(beanClass); if (constraintConfig.containsKey(beanClass)) { constraintConfig.get(beanClass).add(definition); } else { List<ConstraintDef<?>> definitionList = new ArrayList<ConstraintDef<?>>(); definitionList.add(definition); constraintConfig.put(beanClass, definitionList); *newDefinitions = null;* } } {noformat} and the time which is needed to create the factory is 200ms.