base/io.spine.annotation/SPI

SPI

@SPI()
@Retention(value = RetentionPolicy.SOURCE)
@Target(value = {ElementType.ANNOTATION_TYPE, ElementType.CONSTRUCTOR, ElementType.FIELD, ElementType.METHOD, ElementType.PACKAGE, ElementType.TYPE})
@Documented()
public @interface SPI

Annotates a program element (class, method, package, etc.) as an element of Service Provider Interface (SPI).

SPI is used to enable framework extension and replaceable components (implement a new storage, etc.).

See "Effective Java 2nd Edition", chapter 2, item 1 for more information on service provider framework pattern.

Inherited functions

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public abstract Class<? extends Annotation> annotationType()
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public abstract boolean equals(Object p)
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public abstract int hashCode()
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public abstract String toString()