Package com.google.common.base
Interface Function<F,T>
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- All Known Subinterfaces:
LoadingCache<K,V>
- All Known Implementing Classes:
AbstractLoadingCache
,ForwardingLoadingCache
,ForwardingLoadingCache.SimpleForwardingLoadingCache
@GwtCompatible @Deprecated(since="2022-12-01") public interface Function<F,T>
Deprecated.The Google Guava Core Libraries are deprecated and will not be part of the AEM SDK after April 2023Determines an output value based on an input value.The
Functions
class provides common functions and related utilites.See the Guava User Guide article on the use of
Function
.- Since:
- 2.0 (imported from Google Collections Library)
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Method Summary
All Methods Instance Methods Abstract Methods Deprecated Methods Modifier and Type Method Description T
apply(F input)
Deprecated.Returns the result of applying this function toinput
.boolean
equals(java.lang.Object object)
Deprecated.Indicates whether another object is equal to this function.
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Method Detail
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apply
@Nullable T apply(@Nullable F input)
Deprecated.Returns the result of applying this function toinput
. This method is generally expected, but not absolutely required, to have the following properties:- Its execution does not cause any observable side effects.
- The computation is consistent with equals; that is,
Objects.equal
(a, b)
implies thatObjects.equal(function.apply(a), function.apply(b))
.
- Throws:
java.lang.NullPointerException
- ifinput
is null and this function does not accept null arguments
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equals
boolean equals(@Nullable java.lang.Object object)
Deprecated.Indicates whether another object is equal to this function.Most implementations will have no reason to override the behavior of
Object.equals(java.lang.Object)
. However, an implementation may also choose to returntrue
wheneverobject
is aFunction
that it considers interchangeable with this one. "Interchangeable" typically means thatObjects.equal(this.apply(f), that.apply(f))
is true for allf
of typeF
. Note that afalse
result from this method does not imply that the functions are known not to be interchangeable.- Overrides:
equals
in classjava.lang.Object
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