Package com.ibm.fhir.persistence.jdbc.dao.impl

Class CodeSystemDAOImpl

java.lang.Object

com.ibm.fhir.persistence.jdbc.dao.impl.CodeSystemDAOImpl

All Implemented Interfaces:

CodeSystemDAO

Direct Known Subclasses:

DerbyCodeSystemDAO, PostgresCodeSystemDAO

public class CodeSystemDAOImpl
extends Object
implements CodeSystemDAO

This DAO uses a connection provided to its constructor. It's therefore assumed to be a short-lived object, created on-the-fly. Caching etc is handled elsewhere...we're just doing JDBC stuff here.

Constructor Summary

Constructors

Constructor	Description
CodeSystemDAOImpl(Connection c, String schemaName)	Constructs a DAO instance suitable for acquiring connections from a JDBC Datasource object.

Method Summary

Modifier and Type	Method	Description
protected Connection	getConnection()	Provide subclasses with access to the Connection
protected String	getSchemaName()	Getter for the FHIR data schema
Map<String,Integer>	readAllCodeSystems()	Reads all rows in the code_systems table and returns the data as a Map
Integer	readCodeSystemId(String codeSystem)	Read the code_system_id for the given code system name
int	readOrAddCodeSystem(String systemName)	Calls a stored procedure to read the system contained in the passed Parameter in the Code_Systems table.

Methods inherited from class java.lang.Object

clone, equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

CodeSystemDAOImpl

public CodeSystemDAOImpl(Connection c,
                         String schemaName)

Constructs a DAO instance suitable for acquiring connections from a JDBC Datasource object.

Method Detail

getConnection

protected Connection getConnection()

Provide subclasses with access to the Connection

Returns:

getSchemaName

protected String getSchemaName()

Getter for the FHIR data schema

Returns:

readAllCodeSystems

public Map<String,Integer> readAllCodeSystems()
                                             throws FHIRPersistenceDataAccessException

Description copied from interface: CodeSystemDAO

Reads all rows in the code_systems table and returns the data as a Map

Specified by:

readAllCodeSystems in interface CodeSystemDAO

Returns:

A map containing key=system-name, value=system-id

Throws:

FHIRPersistenceDataAccessException

readOrAddCodeSystem

public int readOrAddCodeSystem(String systemName)
                        throws FHIRPersistenceDataAccessException

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

Parameters:

systemName -

Returns:

The generated id of the stored system.

Throws:

FHIRPersistenceDataAccessException

readCodeSystemId

public Integer readCodeSystemId(String codeSystem)
                         throws FHIRPersistenceDataAccessException

Description copied from interface: CodeSystemDAO

Read the code_system_id for the given code system name

Specified by:

readCodeSystemId in interface CodeSystemDAO

Returns:

the parameter_name_id for for parameter, or null if it doesn't exist

Throws:

FHIRPersistenceDataAccessException