DerbyCodeSystemDAO (LinuxForHealth FHIR Server)

java.lang.Object
- org.linuxforhealth.fhir.persistence.jdbc.dao.impl.CodeSystemDAOImpl
- - org.linuxforhealth.fhir.persistence.jdbc.derby.DerbyCodeSystemDAO

All Implemented Interfaces:

CodeSystemDAO
```
public class DerbyCodeSystemDAO
extends CodeSystemDAOImpl
```
Derby variant DAO used to manage code_systems records. Uses plain old JDBC statements instead of a stored procedure.

Constructor Summary

Constructors
Constructor Description

DerbyCodeSystemDAO(java.sql.Connection c, java.lang.String schemaName)
Public constructor

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`protected java.lang.Integer`	`getCodeSystemId(java.lang.String codeSystem)`	Read the id for the named type
`int`	`readOrAddCodeSystem(java.lang.String codeSystem)`	Calls a stored procedure to read the system contained in the passed Parameter in the Code_Systems table.

Methods inherited from class org.linuxforhealth.fhir.persistence.jdbc.dao.impl.CodeSystemDAOImpl
getConnection, getSchemaName, readAllCodeSystems, readCodeSystemId

Methods inherited from class java.lang.Object
clone, equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - DerbyCodeSystemDAO
```
public DerbyCodeSystemDAO(java.sql.Connection c,
                          java.lang.String schemaName)
```
    Public constructor
    
    Parameters:
    
    c -
    
    schemaName -
- Method Detail
  - readOrAddCodeSystem
```
public int readOrAddCodeSystem(java.lang.String codeSystem)
                        throws FHIRPersistenceDataAccessException
```
    Description copied from class: CodeSystemDAOImpl
    
    Calls a stored procedure to read the system contained in the passed Parameter in the Code_Systems table. If it's not in the DB, it will be stored and a unique id will be returned.
    
    Specified by:
    
    readOrAddCodeSystem in interface CodeSystemDAO
    
    Overrides:
    
    readOrAddCodeSystem in class CodeSystemDAOImpl
    
    Parameters:
    
    codeSystem - A valid FHIR search parameter name.
    
    Returns:
    
    The generated id of the stored system.
    
    Throws:
    
    FHIRPersistenceDataAccessException
  - getCodeSystemId
```
protected java.lang.Integer getCodeSystemId(java.lang.String codeSystem)
                                     throws FHIRPersistenceDataAccessException
```
    Read the id for the named type
    
    Parameters:
    
    codeSystem -
    
    Returns:
    
    the database id, or null if the named record is not found
    
    Throws:
    
    FHIRPersistenceDataAccessException