Module com.softwaremill.jox

Package com.softwaremill.jox

Class Select

java.lang.Object

com.softwaremill.jox.Select

public class Select
extends Object

Constructor Summary

Constructors

Constructor	Description
Select()

Method Summary

Modifier and Type	Method	Description
static <T> SelectClause<T>	defaultClause(Supplier<T> callback)
static <T> SelectClause<T>	defaultClause(T value)
static <U> U	select(SelectClause<? extends U>... clauses)	Select exactly one clause to complete.
static <U> Object	selectOrClosed(SelectClause<? extends U>... clauses)	Select exactly one clause to complete.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

Select

public Select()

Method Details

select

@SafeVarargs
public static <U> U select(SelectClause<? extends U>... clauses)
                    throws InterruptedException

Select exactly one clause to complete. Each clause should be created for a different channel.

If a couple of the clauses can be completed immediately, the select is biased towards the clauses that appear first.

If no clauses are given, throws ChannelDoneException.

Parameters:

clauses - The clauses, from which one will be selected. Array must not be empty or null and can't contain null values.

Returns:

The value returned by the selected clause.

Throws:

ChannelClosedException - When any of the channels is closed (done or in error).

InterruptedException

selectOrClosed

@SafeVarargs
public static <U> Object selectOrClosed(SelectClause<? extends U>... clauses)
                                 throws InterruptedException

Select exactly one clause to complete. Each clause should be created for a different channel. Doesn't throw exceptions when the channel is closed, but returns a value.

If a couple of the clauses can be completed immediately, the select is biased towards the clauses that appear first.

If no clauses are given, returns ChannelDone.

Parameters:

clauses - The clauses, from which one will be selected. Array must not be empty or null and can't contain null values.

Returns:

Either the value returned by the selected clause, or ChannelClosed, when any of the channels is closed (done or in error).

Throws:

InterruptedException

defaultClause

public static <T> SelectClause<T> defaultClause(T value)

defaultClause

public static <T> SelectClause<T> defaultClause(Supplier<T> callback)