Configuring a Serialized Object Converter

A serialized object converter can be used to store an arbitrary object or set of objects into a data source binary large object (BLOB) field. It uses the Java serializer so the target must be serializable.

For more information about the serialized object converter, see "Serialized Object Converter".

Table 32-10 summarizes which mappings support this option.

Table 32-10 Mapping Support for Serialized Object Converter

Mapping	Using TopLink Workbench	Using Java
Relational Mappings
Direct-to-Field Mapping
Object-Relational Mappings
Object-Relational Array Mapping
EIS Mappings
EIS Direct Mapping
EIS Composite Direct Collection Mapping
XML Mappings
XML Direct Mapping
XML Composite Direct Collection Mapping

Using TopLink Workbench

To create an serialized object direct mapping, use this procedure:

Select the mapped attribute in the Navigator. Its properties appear in the Editor.
Click the Converter tab. The Converter tab appears.

Figure 32-10 Converter Tab, Serialized Object Converter Option

Description of "Figure 32-10 Converter Tab, Serialized Object Converter Option"

To specify a serialized object converter, select the Serialized Object Converter option.

Using Java

You can set an oracle.toplink.converters.SerializedObjectConverter on any instance of oracle.toplink.mappings.foundation.AbstractCompositeDirectCollectionMapping using AbstractCompositeDirectCollectionMapping method setValueConverter as Example 32-11 shows.

Example 32-11 Configuring a SerializedObjectConverter in Java

// Create SerializedObjectConverter instance
SerializedObjectConverter serializedObjectConvter = new SerializedObjectConverter();

// Set SerializedObjectConverter on ArrayMapping
ArrayMapping arrayMapping = new ArrayMapping();
arrayMapping.setValueConverter(serializedObjectConvter);
arrayMapping.setAttributeName("responsibilities");
arrayMapping.setStructureName("Responsibilities_t");
arrayMapping.setFieldName("RESPONSIBILITIES");
orDescriptor.addMapping(arrayMapping);