org.datanucleus.store.objectvaluegenerator

Interface ObjectValueGenerator

public interface ObjectValueGenerator

Interface providing value generation based on an input (persistable) object.

Method Summary

Modifier and Type	Method and Description
Object	generate(ExecutionContext ec, Object obj, ExtensionMetaData[] extensions) Method that takes the object being persisted by the specified ExecutionContext and generates a value (based on the contents of the object).

Method Detail

generate

Object generate(ExecutionContext ec,
                Object obj,
                ExtensionMetaData[] extensions)

Method that takes the object being persisted by the specified ExecutionContext and generates a value (based on the contents of the object). This could be used, for example, to generate a unique value for the object based on some of its fields.

Parameters:

ec - execution context

obj - The object (persistent, or being persisted)

extensions - Extensions on the field being generated

Returns:

The value