Try (Java-EX 0.0.3 API)

java.lang.Object
- xdean.jex.util.task.tryto.Try<T>

直接已知子类:

Failure, Success
```
public abstract class Try<T>
extends Object
```
Try pattern, similar to Optional (learn from Scala)

作者:

liuwenzhe2008@qq.com

构造器概要

构造器
构造器和说明

Try()

构造器
构造器和说明
`Try()`

方法概要

所有方法静态方法实例方法抽象方法具体方法
限定符和类型	方法和说明
`abstract Try<Exception>`	`failed()` Inverts this `Try`.
`abstract Try<T>`	`filter(java.util.function.Predicate<T> p)` Converts this to a `Failure` if the predicate is not satisfied.
`abstract <U> Try<U>`	`flatMap(java.util.function.Function<T,Try<U>> f)` Returns the given function applied to the value from this `Success` or returns this if this is a `Failure`.
`abstract Try<T>`	`foreach(java.util.function.Consumer<T> f)` Applies the given function `f` if this is a `Success`, otherwise returns `Unit` if this is a `Failure`.
`abstract T`	`get()` Returns the value from this `Success` or throws the exception if this is a `Failure`.
`T`	`getOrElse(java.util.function.Supplier<T> defaultValue)` Returns the value from this `Success` or the given `default` argument if this is a `Failure`.
`T`	`getOrElse(T defaultValue)` Returns the value from this `Success` or the given `default` argument if this is a `Failure`.
`abstract boolean`	`isFailure()` Returns `true` if the `Try` is a `Failure`, `false` otherwise.
`abstract boolean`	`isSuccess()` Returns `true` if the `Try` is a `Success`, `false` otherwise.
`abstract <U> Try<U>`	`map(java.util.function.Function<T,U> f)` Maps the given function to the value from this `Success` or returns this if this is a `Failure`.
`static <T> Try<T>`	`of(T value)`
`static <T extends Exception> Try<T>`	`ofFailure(T value)`
`abstract Try<T>`	`onException(java.util.function.Consumer<Exception> f)`
`Try<T>`	`orElse(java.util.function.Supplier<Try<T>> defaultValue)` Returns this `Try` if it's a `Success` or the given `default` argument if this is a `Failure`.
`Try<T>`	`orElse(Try<T> defaultValue)` Returns this `Try` if it's a `Success` or the given `default` argument if this is a `Failure`.
`abstract Try<T>`	`recover(java.util.function.Function<Exception,T> f)` Applies the given function `f` if this is a `Failure`, otherwise returns this if this is a `Success`.
`abstract Try<T>`	`recoverWith(java.util.function.Function<Exception,Try<T>> f)` Applies the given function `f` if this is a `Failure`, otherwise returns this if this is a `Success`.
`static Try<Void>`	`to(RunnableThrow<Exception> code)`
`static Try<Void>`	`to(RunnableThrow<Exception> code, RunnableThrow<Exception> onFinally)`
`static <T> Try<T>`	`to(SupplierThrow<T,Exception> code)`
`static <T> Try<T>`	`to(SupplierThrow<T,Exception> code, RunnableThrow<Exception> onFinally)` Constructs a `Try` using a code as a supplier.
`Optional<T>`	`toOptional()` Returns `None` if this is a `Failure` or a `Some` containing the value if this is a `Success`.
`abstract <U> Try<U>`	`transform(java.util.function.Function<T,Try<U>> s, java.util.function.Function<Exception,Try<U>> f)` Completes this `Try` by applying the function `f` to this if this is of type `Failure`, or conversely, by applying `s` if this is a `Success`.

从类继承的方法 java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- 构造器详细资料
 - Try
```
public Try()
```
- 方法详细资料
 - to
```
public static <T> Try<T> to(SupplierThrow<T,Exception> code,
 RunnableThrow<Exception> onFinally)
```
 Constructs a `Try` using a code as a supplier.
 - to
```
public static <T> Try<T> to(SupplierThrow<T,Exception> code)
```
 - to
```
public static Try<Void> to(RunnableThrow<Exception> code,
 RunnableThrow<Exception> onFinally)
```
 - to
```
public static Try<Void> to(RunnableThrow<Exception> code)
```
 - of
```
public static <T> Try<T> of(T value)
```
 - ofFailure
```
public static <T extends Exception> Try<T> ofFailure(T value)
```
 - isFailure
```
public abstract boolean isFailure()
```
 Returns `true` if the `Try` is a `Failure`, `false` otherwise.
 - isSuccess
```
public abstract boolean isSuccess()
```
 Returns `true` if the `Try` is a `Success`, `false` otherwise.
 - getOrElse
```
public T getOrElse(java.util.function.Supplier<T> defaultValue)
```
 Returns the value from this `Success` or the given `default` argument if this is a `Failure`.
 ''Note:'': This will throw an exception if it is not a success and default throws an exception.
 - getOrElse
```
public T getOrElse(T defaultValue)
```
 Returns the value from this `Success` or the given `default` argument if this is a `Failure`.
 ''Note:'': This will throw an exception if it is not a success and default throws an exception.
 - orElse
```
public Try<T> orElse(java.util.function.Supplier<Try<T>> defaultValue)
```
 Returns this `Try` if it's a `Success` or the given `default` argument if this is a `Failure`.
 - orElse
```
public Try<T> orElse(Try<T> defaultValue)
```
 Returns this `Try` if it's a `Success` or the given `default` argument if this is a `Failure`.
 - get
```
public abstract T get()
```
 Returns the value from this `Success` or throws the exception if this is a `Failure`.
 - foreach
```
public abstract Try<T> foreach(java.util.function.Consumer<T> f)
```
 Applies the given function `f` if this is a `Success`, otherwise returns `Unit` if this is a `Failure`.
 ''Note:'' If `f` throws, then this method may throw an exception.
 - onException
```
public abstract Try<T> onException(java.util.function.Consumer<Exception> f)
```
 - flatMap
```
public abstract  Try flatMap(java.util.function.Function<T,Try> f)
```
 Returns the given function applied to the value from this `Success` or returns this if this is a `Failure`.
 - map
```
public abstract  Try map(java.util.function.Function<T,U> f)
```
 Maps the given function to the value from this `Success` or returns this if this is a `Failure`.
 - filter
```
public abstract Try<T> filter(java.util.function.Predicate<T> p)
```
 Converts this to a `Failure` if the predicate is not satisfied.
 - recoverWith
```
public abstract Try<T> recoverWith(java.util.function.Function<Exception,Try<T>> f)
```
 Applies the given function `f` if this is a `Failure`, otherwise returns this if this is a `Success`. This is like `flatMap` for the exception.
 - recover
```
public abstract Try<T> recover(java.util.function.Function<Exception,T> f)
```
 Applies the given function `f` if this is a `Failure`, otherwise returns this if this is a `Success`. This is like map for the exception.
 - toOptional
```
public Optional<T> toOptional()
```
 Returns `None` if this is a `Failure` or a `Some` containing the value if this is a `Success`.
 - failed
```
public abstract Try<Exception> failed()
```
 Inverts this `Try`. If this is a `Failure`, returns its exception wrapped in a `Success`. If this is a `Success`, returns a `Failure` containing an `UnsupportedOperationException`.
 - transform
```
public abstract  Try transform(java.util.function.Function<T,Try> s,
 java.util.function.Function<Exception,Try> f)
```
 Completes this `Try` by applying the function `f` to this if this is of type `Failure`, or conversely, by applying `s` if this is a `Success`.

类 Try<T>

构造器概要

方法概要

从类继承的方法 java.lang.Object

构造器详细资料

Try

方法详细资料

to

to

to

to

of

ofFailure

isFailure

isSuccess

getOrElse

getOrElse

orElse

orElse

get

foreach

onException

flatMap

map

filter

recoverWith

recover

toOptional

failed

transform