Functions (RxJava Javadoc 0.19.0)

java.lang.Object
- rx.functions.Functions

public class Functions
extends java.lang.Object

Constructor Summary

Constructors
Constructor and Description

Functions()

Constructors
Constructor and Description
`Functions()`

Method Summary

Methods
Modifier and Type	Method and Description
`static <T> Func1<? super T,java.lang.Boolean>`	`alwaysFalse()` Returns a function that always returns `false`.
`static <T> Func1<? super T,java.lang.Boolean>`	`alwaysTrue()` Returns a function that always returns `true`.
`static FuncN<java.lang.Void>`	`fromAction(Action0 f)` Converts an `Action0` to a `FuncN` to allow heterogeneous handling of functions with different arities.
`static <T0> FuncN<java.lang.Void>`	`fromAction(Action1<? super T0> f)` Converts an `Action1` to a `FuncN` to allow heterogeneous handling of functions with different arities.
`static <T0,T1> FuncN<java.lang.Void>`	`fromAction(Action2<? super T0,? super T1> f)` Converts an `Action2` to a `FuncN` to allow heterogeneous handling of functions with different arities.
`static <T0,T1,T2> FuncN<java.lang.Void>`	`fromAction(Action3<? super T0,? super T1,? super T2> f)` Converts an `Action3` to a `FuncN` to allow heterogeneous handling of functions with different arities.
`static <R> FuncN<R>`	`fromFunc(Func0<? extends R> f)` Converts a `Func0` to a `FuncN` to allow heterogeneous handling of functions with different arities.
`static <T0,R> FuncN<R>`	`fromFunc(Func1<? super T0,? extends R> f)` Converts a `Func1` to a `FuncN` to allow heterogeneous handling of functions with different arities.
`static <T0,T1,R> FuncN<R>`	`fromFunc(Func2<? super T0,? super T1,? extends R> f)` Converts a `Func2` to a `FuncN` to allow heterogeneous handling of functions with different arities.
`static <T0,T1,T2,R> FuncN<R>`	`fromFunc(Func3<? super T0,? super T1,? super T2,? extends R> f)` Converts a `Func3` to a `FuncN` to allow heterogeneous handling of functions with different arities.
`static <T0,T1,T2,T3,R> FuncN<R>`	`fromFunc(Func4<? super T0,? super T1,? super T2,? super T3,? extends R> f)` Converts a `Func4` to a `FuncN` to allow heterogeneous handling of functions with different arities.
`static <T0,T1,T2,T3,T4,R> FuncN<R>`	`fromFunc(Func5<? super T0,? super T1,? super T2,? super T3,? super T4,? extends R> f)` Converts a `Func5` to a `FuncN` to allow heterogeneous handling of functions with different arities.
`static <T0,T1,T2,T3,T4,T5,R> FuncN<R>`	`fromFunc(Func6<? super T0,? super T1,? super T2,? super T3,? super T4,? super T5,? extends R> f)` Converts a `Func6` to a `FuncN` to allow heterogeneous handling of functions with different arities.
`static <T0,T1,T2,T3,T4,T5,T6,R> FuncN<R>`	`fromFunc(Func7<? super T0,? super T1,? super T2,? super T3,? super T4,? super T5,? super T6,? extends R> f)` Converts a `Func7` to a `FuncN` to allow heterogeneous handling of functions with different arities.
`static <T0,T1,T2,T3,T4,T5,T6,T7,R> FuncN<R>`	`fromFunc(Func8<? super T0,? super T1,? super T2,? super T3,? super T4,? super T5,? super T6,? super T7,? extends R> f)` Converts a `Func8` to a `FuncN` to allow heterogeneous handling of functions with different arities.
`static <T0,T1,T2,T3,T4,T5,T6,T7,T8,R> FuncN<R>`	`fromFunc(Func9<? super T0,? super T1,? super T2,? super T3,? super T4,? super T5,? super T6,? super T7,? super T8,? extends R> f)` Converts a `Func9` to a `FuncN` to allow heterogeneous handling of functions with different arities.
`static <T> Func1<T,T>`	`identity()` Returns a function that always returns the Object it is passed.
`static <T> Func1<T,java.lang.Boolean>`	`not(Func1<? super T,java.lang.Boolean> predicate)` Constructs a predicate that returns true for each input for which the source predicate returns false, and vice versa.
`static <T0,T1,T2,T3,T4,T5,T6,T7,T8,T9,R> rx.functions.Functions.NullFunction<T0,T1,T2,T3,T4,T5,T6,T7,T8,T9,R>`	`returnNull()` Returns a function that merely returns `null`, without side effects.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - Functions
```
public Functions()
```
- Method Detail
  - fromFunc
```
public static <R> FuncN<R> fromFunc(Func0<? extends R> f)
```
    Converts a Func0 to a FuncN to allow heterogeneous handling of functions with different arities.
    
    Parameters:
    f - the Func0 to convert
    
    Returns:
    a FuncN representation of f
  - fromFunc
```
public static <T0,R> FuncN<R> fromFunc(Func1<? super T0,? extends R> f)
```
    Converts a Func1 to a FuncN to allow heterogeneous handling of functions with different arities.
    
    Parameters:
    f - the Func1 to convert
    
    Returns:
    a FuncN representation of f
  - fromFunc
```
public static <T0,T1,R> FuncN<R> fromFunc(Func2<? super T0,? super T1,? extends R> f)
```
    Converts a Func2 to a FuncN to allow heterogeneous handling of functions with different arities.
    
    Parameters:
    f - the Func2 to convert
    
    Returns:
    a FuncN representation of f
  - fromFunc
```
public static <T0,T1,T2,R> FuncN<R> fromFunc(Func3<? super T0,? super T1,? super T2,? extends R> f)
```
    Converts a Func3 to a FuncN to allow heterogeneous handling of functions with different arities.
    
    Parameters:
    f - the Func3 to convert
    
    Returns:
    a FuncN representation of f
  - fromFunc
```
public static <T0,T1,T2,T3,R> FuncN<R> fromFunc(Func4<? super T0,? super T1,? super T2,? super T3,? extends R> f)
```
    Converts a Func4 to a FuncN to allow heterogeneous handling of functions with different arities.
    
    Parameters:
    f - the Func4 to convert
    
    Returns:
    a FuncN representation of f
  - fromFunc
```
public static <T0,T1,T2,T3,T4,R> FuncN<R> fromFunc(Func5<? super T0,? super T1,? super T2,? super T3,? super T4,? extends R> f)
```
    Converts a Func5 to a FuncN to allow heterogeneous handling of functions with different arities.
    
    Parameters:
    f - the Func5 to convert
    
    Returns:
    a FuncN representation of f
  - fromFunc
```
public static <T0,T1,T2,T3,T4,T5,R> FuncN<R> fromFunc(Func6<? super T0,? super T1,? super T2,? super T3,? super T4,? super T5,? extends R> f)
```
    Converts a Func6 to a FuncN to allow heterogeneous handling of functions with different arities.
    
    Parameters:
    f - the Func6 to convert
    
    Returns:
    a FuncN representation of f
  - fromFunc
```
public static <T0,T1,T2,T3,T4,T5,T6,R> FuncN<R> fromFunc(Func7<? super T0,? super T1,? super T2,? super T3,? super T4,? super T5,? super T6,? extends R> f)
```
    Converts a Func7 to a FuncN to allow heterogeneous handling of functions with different arities.
    
    Parameters:
    f - the Func7 to convert
    
    Returns:
    a FuncN representation of f
  - fromFunc
```
public static <T0,T1,T2,T3,T4,T5,T6,T7,R> FuncN<R> fromFunc(Func8<? super T0,? super T1,? super T2,? super T3,? super T4,? super T5,? super T6,? super T7,? extends R> f)
```
    Converts a Func8 to a FuncN to allow heterogeneous handling of functions with different arities.
    
    Parameters:
    f - the Func8 to convert
    
    Returns:
    a FuncN representation of f
  - fromFunc
```
public static <T0,T1,T2,T3,T4,T5,T6,T7,T8,R> FuncN<R> fromFunc(Func9<? super T0,? super T1,? super T2,? super T3,? super T4,? super T5,? super T6,? super T7,? super T8,? extends R> f)
```
    Converts a Func9 to a FuncN to allow heterogeneous handling of functions with different arities.
    
    Parameters:
    f - the Func9 to convert
    
    Returns:
    a FuncN representation of f
  - fromAction
```
public static FuncN<java.lang.Void> fromAction(Action0 f)
```
    Converts an Action0 to a FuncN to allow heterogeneous handling of functions with different arities.
    
    Parameters:
    f - the Action0 to convert
    
    Returns:
    a FuncN representation of f
  - fromAction
```
public static <T0> FuncN<java.lang.Void> fromAction(Action1<? super T0> f)
```
    Converts an Action1 to a FuncN to allow heterogeneous handling of functions with different arities.
    
    Parameters:
    f - the Action1 to convert
    
    Returns:
    a FuncN representation of f
  - fromAction
```
public static <T0,T1> FuncN<java.lang.Void> fromAction(Action2<? super T0,? super T1> f)
```
    Converts an Action2 to a FuncN to allow heterogeneous handling of functions with different arities.
    
    Parameters:
    f - the Action2 to convert
    
    Returns:
    a FuncN representation of f
  - fromAction
```
public static <T0,T1,T2> FuncN<java.lang.Void> fromAction(Action3<? super T0,? super T1,? super T2> f)
```
    Converts an Action3 to a FuncN to allow heterogeneous handling of functions with different arities.
    
    Parameters:
    f - the Action3 to convert
    
    Returns:
    a FuncN representation of f
  - not
```
public static <T> Func1<T,java.lang.Boolean> not(Func1<? super T,java.lang.Boolean> predicate)
```
    Constructs a predicate that returns true for each input for which the source predicate returns false, and vice versa.
    
    Parameters:
    predicate - the source predicate to negate
    
    Returns:
    a function that returns a Boolean that represents an inversion of the logical effect of predicate
  - alwaysTrue
```
public static <T> Func1<? super T,java.lang.Boolean> alwaysTrue()
```
    Returns a function that always returns true.
    
    Returns:
    a Func1 that accepts an Object and returns the Boolean true
  - alwaysFalse
```
public static <T> Func1<? super T,java.lang.Boolean> alwaysFalse()
```
    Returns a function that always returns false.
    
    Returns:
    a Func1 that accepts an Object and returns the Boolean false
  - identity
```
public static <T> Func1<T,T> identity()
```
    Returns a function that always returns the Object it is passed.
    
    Returns:
    a Func1 that accepts an Object and returns the same Object
  - returnNull
```
public static <T0,T1,T2,T3,T4,T5,T6,T7,T8,T9,R> rx.functions.Functions.NullFunction<T0,T1,T2,T3,T4,T5,T6,T7,T8,T9,R> returnNull()
```
    Returns a function that merely returns null, without side effects.
    
    Returns:
    a function that returns null

RxJava

Class Functions

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Constructor Detail

Functions

Method Detail

fromFunc

fromFunc

fromFunc

fromFunc

fromFunc

fromFunc

fromFunc

fromFunc

fromFunc

fromFunc

fromAction

fromAction

fromAction

fromAction

not

alwaysTrue

alwaysFalse

identity

returnNull