IParameterNameCache (IBM FHIR Server)

```
public interface IParameterNameCache
```
Abstraction of the cache service managing parameter names.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`int`	`readOrAddParameterNameId(String parameterName)`	Reads the id associated with the name of the passed Parameter from the Parameter_Names table.

- Method Detail
  - readOrAddParameterNameId
```
int readOrAddParameterNameId(String parameterName)
                      throws com.ibm.fhir.persistence.exception.FHIRPersistenceException
```
    Reads the id associated with the name of the passed Parameter from the Parameter_Names table. If the id for the passed name is not present in the database, an id is generated, persisted, and returned.
    
    Parameters:
    
    parameterName - A valid FHIR search parameter name.
    
    Returns:
    
    the id associated with the name of the passed Parameter.
    
    Throws:
    
    com.ibm.fhir.persistence.exception.FHIRPersistenceException