Synchronous C API Functions
HCERR_OOM
HCERR_INVALID_NVR
HCERR_ILLEGAL_ARGUMENT
Storing Data and Metadata
The following functions are defined to store data and metadata and to enforce indexing of metadata where necessary:
■“hc_store_both_ez” on page 87
■“hc_store_metadata_ez” on page 88
■“hc_check_indexed_ez” on page 89
Note – The is_indexed value in the returned system record (hc_system_record_t) indicates whether this record was successfully inserted in the query engine at the time of store, and is hence available for query. Objects that were not inserted into the query engine at time of store are called store index exceptions. Until they are resolved, store index exceptions may or may not show up in the result sets of queries that match the store. A store index exception is resolved once the metadata for that object has been successfully inserted into the query engine, after which the object will definitely show up in the result sets of queries that match the store. The “hc_check_indexed_ez” on page 89 method may be used to attempt to resolve a store index exception under program control. Store index exceptions will also be resolved automatically (eventually) by ongoing system healing.
hc_store_both_ez
Stores a metadata record and associated data.
Synopsis
hcerr_t hc_store_both_ez (hc_session_t *session,
*data_source_reader,
void *cookie,
hc_nvr_t *nvr,
hc_system_record_t *system_record);
Description
This function stores both object data and metadata and returns a system_record descriptor. The status from this operation can be reclaimed using “hc_session_get_status” on page 55.
Chapter 3 • Sun StorageTek 5800 System C Client API | 87 |
