OriginLookup (Spring Boot API)

Type Parameters:
K - the lookup key type
All Known Implementing Classes:
OriginTrackedMapPropertySource, SystemEnvironmentPropertySourceEnvironmentPostProcessor.OriginAwareSystemEnvironmentPropertySource
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 OriginLookup<K>
```
An interface that may be implemented by an object that can lookup Origin information from a given key. Can be used to add origin support to existing classes.
Since:
2.0.0

Method Summary

All Methods Static Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`static <K> Origin`	`getOrigin(Object source, K key)`	Attempt to lookup the origin from the given source.
`Origin`	`getOrigin(K key)`	Return the origin of the given key or `null` if the origin cannot be determined.

- Method Detail
  - getOrigin
```
Origin getOrigin(K key)
```
    Return the origin of the given key or null if the origin cannot be determined.
    Parameters:
    key - the key to lookup
    Returns:
    the origin of the key or null
  - getOrigin
```
static <K> Origin getOrigin(Object source,
                            K key)
```
    Attempt to lookup the origin from the given source. If the source is not a OriginLookup or if an exception occurs during lookup then null is returned.
    Type Parameters:
    K - the key type
    Parameters:
    source - the source object
    key - the key to lookup
    Returns:
    an Origin or null