org.hawkular.apm.server.api.services

Interface SpanCache

All Superinterfaces:

Cache<Span>

public interface SpanCache
extends Cache<Span>

Author:

Pavol Loffay

Method Summary

Modifier and Type	Method and Description
Set<Span>	getChildren(String tenant, String id) Get all children of a given span.
Set<Span>	getTrace(String tenant, String id) Get all spans which belongs to the trace.
void	store(String tenantId, List<Span> spans, Function<Span,String> cacheKeyEntrySupplier) Stores spans into cache

Methods inherited from interface org.hawkular.apm.server.api.services.Cache

get, store

Method Detail

getChildren

Set<Span> getChildren(String tenant,
                      String id)

Get all children of a given span.

Parameters:

tenant - the tenant

id - Id of the span.

Returns:

Children spans of a given span.

getTrace

Set<Span> getTrace(String tenant,
                   String id)

Get all spans which belongs to the trace.

Parameters:

tenant - the tenant

id - id of the trace

Returns:

spans which belongs to a given trace, null if trace does not exists.

store

void store(String tenantId,
           List<Span> spans,
           Function<Span,String> cacheKeyEntrySupplier)
    throws CacheException

Stores spans into cache

Parameters:

tenantId - The tenant

spans - The spans

cacheKeyEntrySupplier - Function to generate unique id of the span

Throws:

CacheException

See Also:

SpanUniqueIdGenerator}. This is used as key entry in the cache.