What is the full form of "SPI" in the Spring 3 type conversion system?

What does the acronym "SPI" stand for i开发者_StackOverflow中文版n the Spring 3 type conversion API?

SPI=Service Provider Interface. This is the way you define extensions or customizations

FYI, Service Provider Interface is not a Spring framework specific term.

From Wikipedia,

Service Provider Interface (SPI) is an API intended to be implemented or extended by a third party. It can be used to enable framework extension and replaceable components.