Module org.eclipse.persistence.oracle

Package org.eclipse.persistence.platform.database.oracle.json

Class Oracle21JsonPlatform

java.lang.Object

org.eclipse.persistence.json.JsonPlatform

org.eclipse.persistence.platform.database.oracle.json.Oracle21JsonPlatform

All Implemented Interfaces:

DatabaseJsonPlatform

public class Oracle21JsonPlatform
extends JsonPlatform

Oracle 21c JSON database platform.

Constructor Summary

Constructors

Constructor	Description
Oracle21JsonPlatform()

Method Summary

Modifier and Type	Method	Description
JsonValue	convertDataValueToJsonValue(Object jdbcValue)	INTERNAL: Convert JDBC ResultSet type to JSON value field.
<T> T	convertJsonValueToDataValue(JsonValue jsonValue)	INTERNAL: Convert JSON value field to JDBC statement type.
<T> T	getJsonDataFromResultSet(ResultSet resultSet, int columnNumber, Class<T> type)	Retrieve JSON data from JDBC ResultSet.
void	updateClassTypes(Map<String,Class<?>> classTypeMapping)	Update the mapping of Oracle 21c database types to class types for the schema framework.
void	updateFieldTypes(Hashtable<Class<?>,FieldTypeDefinition> fieldTypeMapping)	Update the mapping of JSON class types to Oracle 21c database types for the schema framework.

Methods inherited from class org.eclipse.persistence.json.JsonPlatform

isJsonType

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.eclipse.persistence.internal.databaseaccess.DatabaseJsonPlatform

customParameterMarker, unwrap

Constructor Details

Oracle21JsonPlatform

public Oracle21JsonPlatform()

Method Details

updateClassTypes

public void updateClassTypes(Map<String,Class<?>> classTypeMapping)

Update the mapping of Oracle 21c database types to class types for the schema framework.

Parameters:

classTypeMapping - Map with mappings to be updated.

updateFieldTypes

public void updateFieldTypes(Hashtable<Class<?>,FieldTypeDefinition> fieldTypeMapping)

Update the mapping of JSON class types to Oracle 21c database types for the schema framework.

Specified by:

updateFieldTypes in interface DatabaseJsonPlatform

Overrides:

updateFieldTypes in class JsonPlatform

Parameters:

fieldTypeMapping - Map with mappings to be updated.

convertJsonValueToDataValue

public <T> T convertJsonValueToDataValue(JsonValue jsonValue)
                                  throws PersistenceException

INTERNAL: Convert JSON value field to JDBC statement type. Postgres JSON storage type is JSONB and target Java type is PGobject.

Overrides:

convertJsonValueToDataValue in class JsonPlatform

Type Parameters:

T - classification type

Parameters:

jsonValue - source JSON value field

Returns:

converted JDBC statement type

Throws:

PersistenceException

convertDataValueToJsonValue

public JsonValue convertDataValueToJsonValue(Object jdbcValue)

INTERNAL: Convert JDBC ResultSet type to JSON value field.

Overrides:

convertDataValueToJsonValue in class JsonPlatform

Parameters:

jdbcValue - source classification type value from JDBC

Returns:

converted JSON field value

getJsonDataFromResultSet

public <T> T getJsonDataFromResultSet(ResultSet resultSet,
 int columnNumber,
 Class<T> type)
                               throws SQLException

Retrieve JSON data from JDBC ResultSet. JSON data retrieved from Postgres JDBC ResultSet are returned as OracleJsonValue instance. JsonTypeConverter will convert OracleJsonValue to JsonValue.

Type Parameters:

T - target type to return

Parameters:

resultSet - source JDBC ResultSet

columnNumber - index of column in JDBC ResultSet

type - target class to return, this class will be used to cast returned value

Returns:

JSON data from JDBC ResultSet as String to be parsed by common JsonTypeConverter

Throws:

SQLException - if data could not be retrieved