net.digitalid.utility.functional.interfaces

Interface UnaryOperator<TYPE>

All Superinterfaces:

FailableUnaryFunction<TYPE,TYPE,RuntimeException>, FailableUnaryOperator<TYPE,RuntimeException>, UnaryFunction<TYPE,TYPE>

@Immutable
 @Functional
public interface UnaryOperator<TYPE>
extends UnaryFunction<TYPE,TYPE>, FailableUnaryOperator<TYPE,RuntimeException>

This functional interface models a unary operator that maps an object of type TYPE to another object of type TYPE.

Method Summary

Modifier and Type	Method and Description
default @Nonnull UnaryOperator<TYPE>	after(@Nonnull UnaryOperator<TYPE> operator) Returns the composition of the given operator followed by this operator.
default @Nonnull UnaryOperator<TYPE>	before(@Nonnull UnaryOperator<TYPE> operator) Returns the composition of this operator followed by the given operator.
static <TYPE> @Nonnull UnaryOperator<TYPE>	constant(TYPE output) Returns an operator that always returns the given output.
static <TYPE> @Nonnull UnaryOperator<TYPE>	identity() Returns a unary operator that always returns its input argument.
default @Nonnull UnaryOperator<TYPE>	propagateNull() Returns a new function based on this function that propagates null instead of evaluating it.
default @Nonnull UnaryOperator<TYPE>	replaceNull(TYPE defaultOutput) Returns a new function based on this function that returns the given default output for null.
static <TYPE> @Nonnull UnaryOperator<TYPE>	with(@Nonnull Map<? super TYPE,? extends TYPE> map) Returns an operator that looks up the result in the given map or returns null if the input is not found in the map.
static <TYPE> @Nonnull UnaryOperator<TYPE>	with(@Nonnull Map<? super TYPE,? extends TYPE> map, TYPE defaultValue) Returns an operator that looks up the result in the given map or returns the given default value if the input is not found in the map.

Methods inherited from interface net.digitalid.utility.functional.interfaces.UnaryFunction

after, before

Methods inherited from interface net.digitalid.utility.functional.failable.FailableUnaryOperator

after, before, compose, suppressExceptions, suppressExceptions, suppressExceptions, suppressExceptions

Methods inherited from interface net.digitalid.utility.functional.failable.FailableUnaryFunction

after, before, compose, evaluate

Method Detail

before

@Pure
 @Nonnull
default @Nonnull UnaryOperator<TYPE> before(@Nonnull
                                                            @Nonnull UnaryOperator<TYPE> operator)

Returns the composition of this operator followed by the given operator.

after

@Pure
 @Nonnull
default @Nonnull UnaryOperator<TYPE> after(@Nonnull
                                                           @Nonnull UnaryOperator<TYPE> operator)

Returns the composition of the given operator followed by this operator.

replaceNull

@Pure
 @Nonnull
default @Nonnull UnaryOperator<TYPE> replaceNull(@Captured
                                                                 TYPE defaultOutput)

Description copied from interface: FailableUnaryFunction

Returns a new function based on this function that returns the given default output for null.

Specified by:

replaceNull in interface FailableUnaryFunction<TYPE,TYPE,RuntimeException>

Specified by:

replaceNull in interface FailableUnaryOperator<TYPE,RuntimeException>

Specified by:

replaceNull in interface UnaryFunction<TYPE,TYPE>

propagateNull

@Pure
 @Nonnull
default @Nonnull UnaryOperator<TYPE> propagateNull()

Description copied from interface: FailableUnaryFunction

Returns a new function based on this function that propagates null instead of evaluating it.

Specified by:

propagateNull in interface FailableUnaryFunction<TYPE,TYPE,RuntimeException>

Specified by:

propagateNull in interface FailableUnaryOperator<TYPE,RuntimeException>

Specified by:

propagateNull in interface UnaryFunction<TYPE,TYPE>

with

@Pure
 @Nonnull
static <TYPE> @Nonnull UnaryOperator<TYPE> with(@Nonnull
                                                                @Nonnull Map<? super TYPE,? extends TYPE> map,
                                                                TYPE defaultValue)

Returns an operator that looks up the result in the given map or returns the given default value if the input is not found in the map.

Specified by:

with in interface UnaryFunction<TYPE,TYPE>

with

@Pure
 @Nonnull
static <TYPE> @Nonnull UnaryOperator<TYPE> with(@Nonnull
                                                                @Nonnull Map<? super TYPE,? extends TYPE> map)

Returns an operator that looks up the result in the given map or returns null if the input is not found in the map.

Specified by:

with in interface UnaryFunction<TYPE,TYPE>

constant

@Pure
 @Nonnull
static <TYPE> @Nonnull UnaryOperator<TYPE> constant(@Captured
                                                                    TYPE output)

Returns an operator that always returns the given output.

Specified by:

constant in interface UnaryFunction<TYPE,TYPE>

identity

@Pure
 @Nonnull
static <TYPE> @Nonnull UnaryOperator<TYPE> identity()

Returns a unary operator that always returns its input argument.