Package ca.uhn.fhir.jpa.interceptor

Class UserRequestRetryVersionConflictsInterceptor

java.lang.Object

ca.uhn.fhir.jpa.interceptor.UserRequestRetryVersionConflictsInterceptor

public class UserRequestRetryVersionConflictsInterceptor
extends Object

This interceptor looks for a header on incoming requests called X-Retry-On-Version-Conflict and if present, it will instruct the server to automatically retry JPA server operations that would have otherwise failed with a ResourceVersionConflictException (HTTP 409).

The format of the header is:
X-Retry-On-Version-Conflict: retry; max-retries=100

Field Summary

Fields

Modifier and Type	Field	Description
static final String	HEADER_NAME	Deprecated.
static final String	MAX_RETRIES	Deprecated.
static final String	RETRY	Deprecated.

Constructor Summary

Constructors

Constructor	Description
UserRequestRetryVersionConflictsInterceptor()

Method Summary

Modifier and Type	Method	Description
static void	addRetryHeader(ca.uhn.fhir.rest.api.server.SystemRequestDetails theRequestDetails, int theMaxRetries)	Convenience method to add a retry header to a system request
ResourceVersionConflictResolutionStrategy	check(ca.uhn.fhir.rest.api.server.RequestDetails theRequestDetails)

Methods inherited from class java.lang.Object

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

Field Details

HEADER_NAME

@Deprecated
public static final String HEADER_NAME

Deprecated.

Deprecated and moved to Constants.HEADER_RETRY_ON_VERSION_CONFLICT

See Also:

• Constant Field Values

MAX_RETRIES

@Deprecated
public static final String MAX_RETRIES

Deprecated.

Deprecated and moved to Constants.HEADER_MAX_RETRIES

See Also:

• Constant Field Values

RETRY

@Deprecated
public static final String RETRY

Deprecated.

Deprecated and moved to Constants.HEADER_RETRY

See Also:

• Constant Field Values

Constructor Details

UserRequestRetryVersionConflictsInterceptor

public UserRequestRetryVersionConflictsInterceptor()

Method Details

check

public ResourceVersionConflictResolutionStrategy check(ca.uhn.fhir.rest.api.server.RequestDetails theRequestDetails)

addRetryHeader

public static void addRetryHeader(ca.uhn.fhir.rest.api.server.SystemRequestDetails theRequestDetails,
 int theMaxRetries)

Convenience method to add a retry header to a system request