com.github.dm.jrt.function

Class FunctionWrapper<IN,OUT>

java.lang.Object

com.github.dm.jrt.function.FunctionWrapper<IN,OUT>

Type Parameters:

IN - the input data type.

OUT - the output data type.

All Implemented Interfaces:

Function<IN,OUT>

public class FunctionWrapper<IN,OUT>
extends Object
implements Function<IN,OUT>

Class wrapping a function instance.

Created by davide-maestroni on 10/11/2015.

Method Summary

Methods

Modifier and Type	Method and Description
<AFTER> FunctionWrapper<IN,AFTER>	andThen(Function<? super OUT,AFTER> after) Returns a composed function wrapper that first applies this function to its input, and then applies the after function to the result.
OUT	apply(IN in) Applies this function to the given argument.
static <IN,OUT> FunctionWrapper<IN,OUT>	castTo(Class<? extends OUT> type) Returns a function wrapper casting the passed inputs to the specified class. The returned object will support concatenation and comparison.
static <IN,OUT> FunctionWrapper<IN,OUT>	castTo(ClassToken<? extends OUT> token) Returns a function wrapper casting the passed inputs to the specified class token type. The returned object will support concatenation and comparison.
<BEFORE> FunctionWrapper<BEFORE,OUT>	compose(Function<BEFORE,? extends IN> before) Returns a composed function wrapper that first applies the before function to its input, and then applies this function to the result.
boolean	equals(Object o)
int	hashCode()
boolean	hasStaticContext() Checks if the functions wrapped by this instance have a static context.
static <IN> FunctionWrapper<IN,IN>	identity() Returns the identity function wrapper. The returned object will support concatenation and comparison.

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, toString, wait, wait, wait

Method Detail

castTo

@NotNull
public static <IN,OUT> FunctionWrapper<IN,OUT> castTo(@NotNull
                                              Class<? extends OUT> type)

Returns a function wrapper casting the passed inputs to the specified class.
The returned object will support concatenation and comparison.

Type Parameters:

IN - the input data type.

OUT - the output data type.

Parameters:

type - the class type.

Returns:

the function wrapper.

castTo

@NotNull
public static <IN,OUT> FunctionWrapper<IN,OUT> castTo(@NotNull
                                              ClassToken<? extends OUT> token)

Returns a function wrapper casting the passed inputs to the specified class token type.
The returned object will support concatenation and comparison.

Type Parameters:

IN - the input data type.

OUT - the output data type.

Parameters:

token - the class token.

Returns:

the function wrapper.

identity

@NotNull
public static <IN> FunctionWrapper<IN,IN> identity()

Returns the identity function wrapper.
The returned object will support concatenation and comparison.

Type Parameters:

IN - the input data type.

Returns:

the function wrapper.

andThen

@NotNull
public <AFTER> FunctionWrapper<IN,AFTER> andThen(@NotNull
                                                Function<? super OUT,AFTER> after)

Returns a composed function wrapper that first applies this function to its input, and then applies the after function to the result.

Type Parameters:

AFTER - the type of output of the after function.

Parameters:

after - the function to apply after this function is applied.

Returns:

the composed function.

compose

@NotNull
public <BEFORE> FunctionWrapper<BEFORE,OUT> compose(@NotNull
                                                   Function<BEFORE,? extends IN> before)

Returns a composed function wrapper that first applies the before function to its input, and then applies this function to the result.

Type Parameters:

BEFORE - the type of input to the before function.

Parameters:

before - the function to apply before this function is applied.

Returns:

the composed function.

hasStaticContext

public boolean hasStaticContext()

Checks if the functions wrapped by this instance have a static context.

Returns:

whether the functions have a static context.

hashCode

public int hashCode()

Overrides:

hashCode in class Object

equals

public boolean equals(Object o)

Overrides:

equals in class Object

apply

public OUT apply(IN in)

Description copied from interface: Function

Applies this function to the given argument.

Specified by:

apply in interface Function<IN,OUT>

Parameters:

in - the input argument.

Returns:

the function result.