Package org.apache.tamaya.spi

Interface PropertySourceProvider

Functional Interface:

This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.

@FunctionalInterface
public interface PropertySourceProvider

Implement this interfaces to provide a PropertySource provider which is able to register multiple PropertySources. This is e.g. needed if there are multiple property files of a given config file name.

If a PropertySource like JNDI only exists once, then there is no need to implement it via the PropertySourceProvider but should directly expose a PropertySource.

A PropertySourceProvider will current picked up via the ServiceLoader mechanism and must current registered via META-INF/services/org.apache.tamaya.spi.PropertySourceProvider

Field Summary

Fields

Modifier and Type	Field	Description
static PropertySourceProvider	EMPTY	A resusable instance of an empty PropertySource.

Method Summary

Modifier and Type	Method	Description
Collection<PropertySource>	getPropertySources()

Field Detail

EMPTY

static final PropertySourceProvider EMPTY

A resusable instance of an empty PropertySource.

Method Detail

getPropertySources

Collection<PropertySource> getPropertySources()

Returns:

For each e.g. property file, we return a single PropertySource or an empty createList if no PropertySource exists.