Package ca.uhn.fhir.jpa.sp

Class SearchParamIdentityCacheSvcImpl.PersistSearchParameterIdentityTask

java.lang.Object

ca.uhn.fhir.jpa.sp.SearchParamIdentityCacheSvcImpl.PersistSearchParameterIdentityTask

All Implemented Interfaces:

Callable<Void>

Enclosing class:

SearchParamIdentityCacheSvcImpl

public static class SearchParamIdentityCacheSvcImpl.PersistSearchParameterIdentityTask
extends Object
implements Callable<Void>

This class is responsible for ensuring that a unique IndexedSearchParamIdentity exists for a given hash identity (parameter name and resource type). This task is executed asynchronously to avoid blocking the main thread during persistence.

This task checks the in-memory cache for the given hash identity and, if missing, attempts to create or retrieve the corresponding IndexedSearchParamIdentity from the database. The result is then added to the cache.

Up to 20 retries are permitted in case of a DataIntegrityViolationException, which can occur due to concurrent insert attempts for the same identity. If all retries fail, the IndexedSearchParamIdentity will not be saved during this execution, but the task may be retried later when submitted again.

See Also:

• IndexedSearchParamIdentity
• MemoryCacheService

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	SearchParamIdentityCacheSvcImpl.PersistSearchParameterIdentityTask.Builder

Method Summary

Modifier and Type	Method	Description
Void	call()
Long	getHashIdentity()
String	getMyParamName()
String	getMyResourceType()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Details

getHashIdentity

public Long getHashIdentity()

getMyResourceType

public String getMyResourceType()

getMyParamName

public String getMyParamName()

call

public Void call()
          throws Exception

Specified by:

call in interface Callable<Void>

Throws:

Exception