Either.LeftProjection (Vavr 0.10.0 API)

java.lang.Object
- io.vavr.control.Either.LeftProjection<L,R>

Type Parameters:

L - The type of the Left value of an Either.

R - The type of the Right value of an Either.

All Implemented Interfaces:

Value<L>, Iterable<L>

Enclosing interface:

Either<L,R>

Deprecated.
Either is right-biased. Use Either.swap() instead of projections.
```
@Deprecated
public static final class Either.LeftProjection<L,R>
extends Object
implements Value<L>
```
A left projection of an Either.

Method Summary

All Methods Instance Methods Concrete Methods Deprecated Methods
Modifier and Type	Method and Description
`<L2,R2> Either.LeftProjection<L2,R2>`	`bimap(Function<? super L,? extends L2> leftMapper, Function<? super R,? extends R2> rightMapper)` Deprecated.
`boolean`	`equals(Object obj)` Deprecated. Clarifies that values have a proper equals() method implemented.
`Option<Either.LeftProjection<L,R>>`	`filter(Predicate<? super L> predicate)` Deprecated. Returns `Some` value of type L if this is a left projection of a Left value and the predicate applies to the underlying value.
`<U> Either.LeftProjection<U,R>`	`flatMap(Function<? super L,? extends Either.LeftProjection<? extends U,R>> mapper)` Deprecated. FlatMaps this LeftProjection.
`L`	`get()` Deprecated. Gets the `Left` value or throws.
`L`	`getOrElse(L other)` Deprecated. Gets the Left value or an alternate value, if the projected Either is a Right.
`L`	`getOrElseGet(Function<? super R,? extends L> other)` Deprecated. Gets the Left value or an alternate value, if the projected Either is a Right.
`<X extends Throwable> L`	`getOrElseThrow(Function<? super R,X> exceptionFunction)` Deprecated. Gets the Left value or throws, if the projected Either is a Right.
`int`	`hashCode()` Deprecated. Clarifies that values have a proper hashCode() method implemented.
`boolean`	`isAsync()` Deprecated. A `LeftProjection`'s value is computed synchronously.
`boolean`	`isEmpty()` Deprecated. Checks, this `Value` is empty, i.e.
`boolean`	`isLazy()` Deprecated. A `LeftProjection`'s value is computed eagerly.
`boolean`	`isSingleValued()` Deprecated. A `LeftProjection` is single-valued.
`Iterator<L>`	`iterator()` Deprecated. Returns a rich `io.vavr.collection.Iterator`.
`<U> Either.LeftProjection<U,R>`	`map(Function<? super L,? extends U> mapper)` Deprecated. Maps the left value if the projected Either is a Left.
`Either.LeftProjection<L,R>`	`orElse(Either.LeftProjection<? extends L,? extends R> other)` Deprecated.
`Either.LeftProjection<L,R>`	`orElse(Supplier<? extends Either.LeftProjection<? extends L,? extends R>> supplier)` Deprecated.
`void`	`orElseRun(Consumer<? super R> action)` Deprecated. Runs an action in the case this is a projection on a Right value.
`Either.LeftProjection<L,R>`	`peek(Consumer<? super L> action)` Deprecated. Applies the given action to the value if the projected either is a Left.
`String`	`stringPrefix()` Deprecated. Returns the name of this Value type, which is used by toString().
`Either<L,R>`	`toEither()` Deprecated. Returns the underlying either of this projection.
`String`	`toString()` Deprecated. Clarifies that values have a proper toString() method implemented.
`<U> U`	`transform(Function<? super Either.LeftProjection<L,R>,? extends U> f)` Deprecated. Transforms this `LeftProjection`.

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

Methods inherited from interface io.vavr.Value
collect, collect, contains, corresponds, eq, exists, forAll, forEach, getOrElse, getOrElseThrow, getOrElseTry, getOrNull, narrow, out, out, spliterator, stderr, stdout, toArray, toCharSeq, toCompletableFuture, toEither, toEither, toInvalid, toInvalid, toJavaArray, toJavaArray, toJavaArray, toJavaCollection, toJavaList, toJavaList, toJavaMap, toJavaMap, toJavaMap, toJavaOptional, toJavaParallelStream, toJavaSet, toJavaSet, toJavaStream, toLeft, toLeft, toLinkedMap, toLinkedMap, toLinkedSet, toList, toMap, toMap, toOption, toPriorityQueue, toPriorityQueue, toQueue, toRight, toRight, toSet, toSortedMap, toSortedMap, toSortedMap, toSortedMap, toSortedSet, toSortedSet, toStream, toTree, toTree, toTry, toTry, toValid, toValid, toValidation, toValidation, toVector

- Method Detail
  - bimap
```
public <L2,R2> Either.LeftProjection<L2,R2> bimap(Function<? super L,? extends L2> leftMapper,
                                                  Function<? super R,? extends R2> rightMapper)
```
    Deprecated.
  - isAsync
```
public boolean isAsync()
```
    Deprecated.
    
    A LeftProjection's value is computed synchronously.
    
    Specified by:
    
    isAsync in interface Value<L>
    
    Returns:
    
    false
  - isEmpty
```
public boolean isEmpty()
```
    Deprecated.
    
    Description copied from interface: Value
    
    Checks, this Value is empty, i.e. if the underlying value is absent.
    
    Specified by:
    
    isEmpty in interface Value<L>
    
    Returns:
    
    false, if no underlying value is present, true otherwise.
  - isLazy
```
public boolean isLazy()
```
    Deprecated.
    
    A LeftProjection's value is computed eagerly.
    
    Specified by:
    
    isLazy in interface Value<L>
    
    Returns:
    
    false
  - isSingleValued
```
public boolean isSingleValued()
```
    Deprecated.
    
    A LeftProjection is single-valued.
    
    Specified by:
    
    isSingleValued in interface Value<L>
    
    Returns:
    
    true
  - get
```
public L get()
```
    Deprecated.
    
    Gets the Left value or throws.
    
    Specified by:
    
    get in interface Value<L>
    
    Returns:
    
    the left value, if the underlying Either is a Left
    
    Throws:
    
    NoSuchElementException - if the underlying Either of this LeftProjection is a Right
  - orElse
```
public Either.LeftProjection<L,R> orElse(Either.LeftProjection<? extends L,? extends R> other)
```
    Deprecated.
  - orElse
```
public Either.LeftProjection<L,R> orElse(Supplier<? extends Either.LeftProjection<? extends L,? extends R>> supplier)
```
    Deprecated.
  - getOrElse
```
public L getOrElse(L other)
```
    Deprecated.
    
    Gets the Left value or an alternate value, if the projected Either is a Right.
    
    Specified by:
    
    getOrElse in interface Value<L>
    
    Parameters:
    
    other - an alternative value
    
    Returns:
    
    the left value, if the underlying Either is a Left or else other
    
    Throws:
    
    NoSuchElementException - if the underlying either of this LeftProjection is a Right
  - getOrElseGet
```
public L getOrElseGet(Function<? super R,? extends L> other)
```
    Deprecated.
    
    Gets the Left value or an alternate value, if the projected Either is a Right.
    
    Parameters:
    
    other - a function which converts a Right value to an alternative Left value
    
    Returns:
    
    the left value, if the underlying Either is a Left or else the alternative Left value provided by other by applying the Right value.
  - orElseRun
```
public void orElseRun(Consumer<? super R> action)
```
    Deprecated.
    
    Runs an action in the case this is a projection on a Right value.
    
    Parameters:
    
    action - an action which consumes a Right value
  - getOrElseThrow
```
public <X extends Throwable> L getOrElseThrow(Function<? super R,X> exceptionFunction)
                                       throws X extends Throwable
```
    Deprecated.
    
    Gets the Left value or throws, if the projected Either is a Right.
    
    Type Parameters:
    
    X - a throwable type
    
    Parameters:
    
    exceptionFunction - a function which creates an exception based on a Right value
    
    Returns:
    
    the left value, if the underlying Either is a Left or else throws the exception provided by exceptionFunction by applying the Right value.
    
    Throws:
    
    X - if the projected Either is a Right
    
    X extends Throwable
  - toEither
```
public Either<L,R> toEither()
```
    Deprecated.
    
    Returns the underlying either of this projection.
    
    Returns:
    
    the underlying either
  - filter
```
public Option<Either.LeftProjection<L,R>> filter(Predicate<? super L> predicate)
```
    Deprecated.
    
    Returns Some value of type L if this is a left projection of a Left value and the predicate applies to the underlying value.
    
    Parameters:
    
    predicate - A predicate
    
    Returns:
    
    A new Option
  - flatMap
```
public <U> Either.LeftProjection<U,R> flatMap(Function<? super L,? extends Either.LeftProjection<? extends U,R>> mapper)
```
    Deprecated.
    
    FlatMaps this LeftProjection.
    
    Type Parameters:
    
    U - Component type of the mapped left value
    
    Parameters:
    
    mapper - A mapper
    
    Returns:
    
    this as LeftProjection<L, U> if a Right is underlying, otherwise a the mapping result of the left value.
    
    Throws:
    
    NullPointerException - if mapper is null
  - map
```
public <U> Either.LeftProjection<U,R> map(Function<? super L,? extends U> mapper)
```
    Deprecated.
    
    Maps the left value if the projected Either is a Left.
    
    Specified by:
    
    map in interface Value<L>
    
    Type Parameters:
    
    U - The new type of a Left value
    
    Parameters:
    
    mapper - A mapper which takes a left value and returns a value of type U
    
    Returns:
    
    A new LeftProjection
  - peek
```
public Either.LeftProjection<L,R> peek(Consumer<? super L> action)
```
    Deprecated.
    
    Applies the given action to the value if the projected either is a Left. Otherwise nothing happens.
    
    Specified by:
    
    peek in interface Value<L>
    
    Parameters:
    
    action - An action which takes a left value
    
    Returns:
    
    this LeftProjection
  - transform
```
public <U> U transform(Function<? super Either.LeftProjection<L,R>,? extends U> f)
```
    Deprecated.
    
    Transforms this LeftProjection.
    
    Type Parameters:
    
    U - Type of transformation result
    
    Parameters:
    
    f - A transformation
    
    Returns:
    
    An instance of type U
    
    Throws:
    
    NullPointerException - if f is null
  - iterator
```
public Iterator<L> iterator()
```
    Deprecated.
    
    Description copied from interface: Value
    
    Returns a rich io.vavr.collection.Iterator.
    
    Specified by:
    
    iterator in interface Value<L>
    
    Specified by:
    
    iterator in interface Iterable<L>
    
    Returns:
    
    A new Iterator
  - equals
```
public boolean equals(Object obj)
```
    Deprecated.
    
    Description copied from interface: Value
    
    Clarifies that values have a proper equals() method implemented.
    See Object.equals(Object).
    
    Specified by:
    
    equals in interface Value<L>
    
    Overrides:
    
    equals in class Object
    
    Parameters:
    
    obj - An object
    
    Returns:
    
    true, if this equals o, false otherwise
  - hashCode
```
public int hashCode()
```
    Deprecated.
    
    Description copied from interface: Value
    
    Clarifies that values have a proper hashCode() method implemented.
    See Object.hashCode().
    
    Specified by:
    
    hashCode in interface Value<L>
    
    Overrides:
    
    hashCode in class Object
    
    Returns:
    
    The hashcode of this object
  - stringPrefix
```
public String stringPrefix()
```
    Deprecated.
    
    Description copied from interface: Value
    
    Returns the name of this Value type, which is used by toString().
    
    Specified by:
    
    stringPrefix in interface Value<L>
    
    Returns:
    
    This type name.
  - toString
```
public String toString()
```
    Deprecated.
    
    Description copied from interface: Value
    
    Clarifies that values have a proper toString() method implemented.
    See Object.toString().
    
    Specified by:
    
    toString in interface Value<L>
    
    Overrides:
    
    toString in class Object
    
    Returns:
    
    A String representation of this object

Class Either.LeftProjection<L,R>

Method Summary

Methods inherited from class java.lang.Object

Methods inherited from interface io.vavr.Value

Method Detail

bimap

isAsync

isEmpty

isLazy

isSingleValued

get

orElse

orElse

getOrElse

getOrElseGet

orElseRun

getOrElseThrow

toEither

filter

flatMap

map

peek

transform

iterator

equals

hashCode

stringPrefix

toString