K
- the lookup key type@FunctionalInterface public interface OriginLookup<K>
Origin
information from a given key. Can be used to add origin support to existing classes.Modifier and Type | Method and Description |
---|---|
Origin |
getOrigin(K key)
Return the origin of the given key or
null if the origin cannot be
determined. |
static <K> Origin |
getOrigin(Object source,
K key)
Attempt to lookup the origin from the given source.
|
default boolean |
isImmutable()
Return
true if this lookup is immutable and has contents that will never
change. |
Origin getOrigin(K key)
null
if the origin cannot be
determined.key
- the key to lookupnull
default boolean isImmutable()
true
if this lookup is immutable and has contents that will never
change.static <K> Origin getOrigin(Object source, K key)
OriginLookup
or if an exception occurs during lookup then null
is
returned.K
- the key typesource
- the source objectkey
- the key to lookupOrigin
or null
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