IResourceReferenceDAO (IBM FHIR Server)

All Known Implementing Classes:

Db2ResourceReferenceDAO, DerbyResourceReferenceDAO, PostgresResourceReferenceDAO, ResourceReferenceDAO
```
public interface IResourceReferenceDAO
```
Contract for DAO implementations handling persistence of resource references (and token parameters) with the normalized schema introduced in issue 1366.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`void`	`addCommonTokenValues(String resourceType, Collection<ResourceTokenValueRec> xrefs)`	Add TOKEN_VALUE_MAP records, creating any CODE_SYSTEMS and COMMON_TOKEN_VALUES as necessary
`void`	`flush()`	Execute any statements with pending batch entries
`ICommonTokenValuesCache`	`getResourceReferenceCache()`	Get the cache used by the DAO
`void`	`persist(Collection<ResourceTokenValueRec> records)`	Persist the records, which may span multiple resource types
`CommonTokenValueResult`	`readCommonTokenValueId(String codeSystem, String tokenValue)`	Find the database id for the given token value and system

- Method Detail
  - getResourceReferenceCache
```
ICommonTokenValuesCache getResourceReferenceCache()
```
    Get the cache used by the DAO
    
    Returns:
  - flush
```
void flush()
    throws FHIRPersistenceException
```
    Execute any statements with pending batch entries
    
    Throws:
    
    FHIRPersistenceException
  - addCommonTokenValues
```
void addCommonTokenValues(String resourceType,
                          Collection<ResourceTokenValueRec> xrefs)
```
    Add TOKEN_VALUE_MAP records, creating any CODE_SYSTEMS and COMMON_TOKEN_VALUES as necessary
    
    Parameters:
    
    resourceType -
    
    xrefs -
  - persist
```
void persist(Collection<ResourceTokenValueRec> records)
```
    Persist the records, which may span multiple resource types
    
    Parameters:
    
    records -
  - readCommonTokenValueId
```
CommonTokenValueResult readCommonTokenValueId(String codeSystem,
                                              String tokenValue)
```
    Find the database id for the given token value and system
    
    Parameters:
    
    codeSystem -
    
    tokenValue -
    
    Returns:
    
    the matching id from common_token_values.common_token_value_id or null if not found