oracle.jdbc.spi

Interface JsonProvider

All Superinterfaces:

OracleResourceProvider

public interface JsonProvider
extends OracleResourceProvider

A provider to create an OsonConverter for serialization of Java objects to Oracle JSON (OSON) bytes and deserialization OSON bytes to Java objects.

The oracle.jdbc.provider.json connection property identifies the name of a JsonProvider implementation.

ServiceLoader locates implementations of JsonProvider declared by a META-INF/services/oracle.jdbc.spi.JsonProvider file in the class path. Typically, this file is distributed within a jar file that contains a JsonProvider implementation.

Since:

23.5

Nested Class Summary

Nested classes/interfaces inherited from interface oracle.jdbc.spi.OracleResourceProvider

OracleResourceProvider.Parameter

Method Summary

Modifier and Type	Method and Description
OsonConverter	getOsonConverter(java.util.Map<OracleResourceProvider.Parameter,java.lang.CharSequence> parameterValues) Returns an OsonConverter to be used by Oracle JDBC for conversions of Oracle JSON (OSON) bytes into Java objects, and vice versa.

Methods inherited from interface oracle.jdbc.spi.OracleResourceProvider

getName, getParameters

Method Detail

getOsonConverter

OsonConverter getOsonConverter(java.util.Map<OracleResourceProvider.Parameter,java.lang.CharSequence> parameterValues)

Returns an OsonConverter to be used by Oracle JDBC for conversions of Oracle JSON (OSON) bytes into Java objects, and vice versa. Oracle JDBC will invoke this method when Driver.connect(String, Properties) is called to open a new Connection.

The parameterValues passed to this method is a Map comprised as follows:

• The key set is the same as, or a subset of, the Parameter objects returned by an invocation of OracleResourceProvider.getParameters() on this provider.
• If no value is configured for a parameter, then the Map contains the default value of that Parameter, if any. If the parameter has no default value, then the map does not contain an entry for that Parameter.
• The Map does not contain entries having null values.

The parameterValues Map may contain a CharSequence having a security sensitive value. After this method returns, the caller may wipe the contents of these CharSequence values from memory. Implementations of this method should not retain a reference to these CharSequence objects.

Parameters:

parameterValues - Parameters configured by connection properties . Not null. May be empty.

Returns:

An OSON converter. Not null.

Throws:

java.lang.IllegalArgumentException - If the value of a parameter can not be parsed or interpreted.

java.lang.IllegalStateException - If an implementation-specific failure prevents a resource from being provided.