Package ca.uhn.fhir.jpa.interceptor

Class CascadingDeleteInterceptor

java.lang.Object

ca.uhn.fhir.jpa.interceptor.CascadingDeleteInterceptor

public class CascadingDeleteInterceptor
extends Object

Interceptor that allows for cascading deletes (deletes that resolve constraint issues).

For example, if DiagnosticReport/A has a reference to Observation/B it is not normally possible to delete Observation/B without first deleting DiagnosticReport/A. With this interceptor in place, it is.

When using this interceptor, client requests must include the parameter _cascade=delete on the DELETE URL in order to activate cascading delete, or include the request header X-Cascade-Delete: delete

Field Summary

Fields

Modifier and Type	Field	Description
static final int	CASCADING_DELETE_INTERCEPTOR_ORDER
static final int	OVERRIDE_PATH_BASED_REF_INTEGRITY_INTERCEPTOR_ORDER

Constructor Summary

Constructors

Constructor	Description
CascadingDeleteInterceptor(ca.uhn.fhir.context.FhirContext theFhirContext, DaoRegistry theDaoRegistry, ca.uhn.fhir.interceptor.api.IInterceptorBroadcaster theInterceptorBroadcaster, ThreadSafeResourceDeleterSvc theThreadSafeResourceDeleterSvc)	Constructor

Method Summary

Modifier and Type	Method	Description
static List<String>	getCascadedDeletesList(ca.uhn.fhir.rest.api.server.RequestDetails theRequest, boolean theCreate)
DeleteConflictOutcome	handleDeleteConflicts(DeleteConflictList theConflictList, ca.uhn.fhir.rest.api.server.RequestDetails theRequest, ca.uhn.fhir.rest.api.server.storage.TransactionDetails theTransactionDetails)
void	outgoingFailureOperationOutcome(ca.uhn.fhir.rest.api.server.RequestDetails theRequestDetails, org.hl7.fhir.instance.model.api.IBaseOperationOutcome theResponse)
void	outgoingResponse(ca.uhn.fhir.rest.api.server.RequestDetails theRequestDetails, ca.uhn.fhir.rest.api.server.ResponseDetails theResponseDetails, org.hl7.fhir.instance.model.api.IBaseResource theResponse)
protected ca.uhn.fhir.rest.api.DeleteCascadeModeEnum	shouldCascade(ca.uhn.fhir.rest.api.server.RequestDetails theRequest)	Subclasses may override

Methods inherited from class java.lang.Object

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

Field Details

OVERRIDE_PATH_BASED_REF_INTEGRITY_INTERCEPTOR_ORDER

public static final int OVERRIDE_PATH_BASED_REF_INTEGRITY_INTERCEPTOR_ORDER

See Also:

• Constant Field Values

CASCADING_DELETE_INTERCEPTOR_ORDER

public static final int CASCADING_DELETE_INTERCEPTOR_ORDER

See Also:

• Constant Field Values

Constructor Details

CascadingDeleteInterceptor

public CascadingDeleteInterceptor(@Nonnull
 ca.uhn.fhir.context.FhirContext theFhirContext,
 @Nonnull
 DaoRegistry theDaoRegistry,
 @Nonnull
 ca.uhn.fhir.interceptor.api.IInterceptorBroadcaster theInterceptorBroadcaster,
 @Nonnull
 ThreadSafeResourceDeleterSvc theThreadSafeResourceDeleterSvc)

Constructor

Parameters:

theDaoRegistry - The DAO registry (must not be null)

Method Details

handleDeleteConflicts

public DeleteConflictOutcome handleDeleteConflicts(DeleteConflictList theConflictList,
 ca.uhn.fhir.rest.api.server.RequestDetails theRequest,
 ca.uhn.fhir.rest.api.server.storage.TransactionDetails theTransactionDetails)

getCascadedDeletesList

public static List<String> getCascadedDeletesList(ca.uhn.fhir.rest.api.server.RequestDetails theRequest,
 boolean theCreate)

outgoingFailureOperationOutcome

public void outgoingFailureOperationOutcome(ca.uhn.fhir.rest.api.server.RequestDetails theRequestDetails,
 org.hl7.fhir.instance.model.api.IBaseOperationOutcome theResponse)

outgoingResponse

public void outgoingResponse(ca.uhn.fhir.rest.api.server.RequestDetails theRequestDetails,
 ca.uhn.fhir.rest.api.server.ResponseDetails theResponseDetails,
 org.hl7.fhir.instance.model.api.IBaseResource theResponse)

shouldCascade

@Nonnull
protected ca.uhn.fhir.rest.api.DeleteCascadeModeEnum shouldCascade(@Nullable
 ca.uhn.fhir.rest.api.server.RequestDetails theRequest)

Subclasses may override

Parameters:

theRequest - The REST request (may be null)

Returns:

Returns true if cascading delete should be allowed