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https://issues.apache.org/jira/browse/ISIS-1157?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14574486#comment-14574486
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Oscar Bou commented on ISIS-1157:
---------------------------------
Initially proposed implementation guide:
- Extend org.apache.isis.applib.annotation.SemanticsOf enum with the new
"SAFE_AND_REQUEST_CACHED" enum value.
- Create "ActionInvocationFacetRequestCached" extending
"ActionInvocationFacetAbstract".
- Implement it by delegating to the "QueryResultsService", avoiding having
different implementations.
- It can be based on "ActionInvocationFacetWrapTransaction".
- Create "ActionInvocationFacetRequestCachedDecorator" returning the facet type
"ActionInvocationFacet.class".
- It can be based on "StandardTransactionFacetDecorator".
- Create "ActionInvocationFacetRequestCachedDecoratorInstaller"
- It can be based on "TransactionFacetDecoratorInstaller"
> Cache safe Actions results by annotating them
> ---------------------------------------------
>
> Key: ISIS-1157
> URL: https://issues.apache.org/jira/browse/ISIS-1157
> Project: Isis
> Issue Type: Improvement
> Components: Core
> Reporter: Oscar Bou
> Assignee: Oscar Bou
>
> As discussed on the Isis mailing list [1].
> Currently, there's service called QueryResultsCache [2] that allows to cache
> the results of an Action/method invocation.
> We want to introduce this capability for Safe Actions by simply annotating
> them.
> Current proposal is to extend the "SemanticsOf" annotation param with a new
> type: SemanticsOf.SAFE_AND_REQUEST_CACHED
> A usage example would be:
>
> {code}
> @Override
> @Action(semantics = SemanticsOf.SAFE_AND_REQUEST_CACHED)
> public SortedSet<IESG> relevantSnpGenotypes(final IE inputElement,
> final Kit kit) {
> if (kit != null) {
> return
> kit.findAllAssociatedSNPGenotypesForInputElement(inputElement,
> AlgorithmImplementation.this.IESGClass);
> } else {
> return Sets.newTreeSet();
> }
> }
> {code}
> [1]
> http://mail-archives.apache.org/mod_mbox/isis-users/201505.mbox/%[email protected]%3E
> [2] https://isis.apache.org/reference/services/query-results-cache.html
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