Package org.jboss.elemento.flow

Class RepeatTask<C extends FlowContext>

java.lang.Object

org.jboss.elemento.flow.RepeatTask<C>

Type Parameters:

C - the type of the context shared between tasks

All Implemented Interfaces:

Task<C>

public class RepeatTask<C extends FlowContext>
extends Object
implements Task<C>

A task implementation that executes a task as long as certain conditions are met.

This implementation makes it easy to nest the execution of asynchronous tasks inside a call to Flow.parallel(FlowContext, List), Flow.sequential(FlowContext, List) or Flow.repeat(FlowContext, Task).

Constructor Summary

Constructors

Constructor	Description
RepeatTask(C context, Task<C> task, Predicate<C> predicate, boolean failFast, long interval, long timeout)	Creates a new task that executes the given tasks as long as the given predicate evaluates to true.
RepeatTask(C context, Task<C> task, Predicate<C> predicate, boolean failFast, long interval, long timeout, int iterations)	Creates a new task that executes the given tasks as long as the given predicate evaluates to true.
RepeatTask(Task<C> task, Predicate<C> predicate, boolean failFast, long interval, long timeout)	Creates a new task that executes the given tasks as long as the given predicate evaluates to true.
RepeatTask(Task<C> task, Predicate<C> predicate, boolean failFast, long interval, long timeout, int iterations)	Creates a new task that executes the given tasks as long as the given predicate evaluates to true.

Method Summary

Modifier and Type	Method	Description
elemental2.promise.Promise<C>	apply(C context)	Executes the task.

Methods inherited from class java.lang.Object

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

Constructor Detail

RepeatTask

public RepeatTask(Task<C> task,
                  Predicate<C> predicate,
                  boolean failFast,
                  long interval,
                  long timeout)

Creates a new task that executes the given tasks as long as the given predicate evaluates to true.

The task re-uses the context from the outer call to Flow.parallel(FlowContext, List), Flow.sequential(FlowContext, List) or Flow.repeat(FlowContext, Task).

Parameters:

task - the task to execute while the predicate evaluates to true

predicate - the predicate used to decide whether to continue or break the loop

failFast - whether the execution of the list should fail fast or fail last

interval - the interval between the iterations

timeout - the timeout for the while loop

RepeatTask

public RepeatTask(Task<C> task,
                  Predicate<C> predicate,
                  boolean failFast,
                  long interval,
                  long timeout,
                  int iterations)

Creates a new task that executes the given tasks as long as the given predicate evaluates to true.

The task re-uses the context from the outer call to Flow.parallel(FlowContext, List), Flow.sequential(FlowContext, List) or Flow.repeat(FlowContext, Task).

Parameters:

task - the task to execute while the predicate evaluates to true

predicate - the predicate used to decide whether to continue or break the loop

failFast - whether the execution of the list should fail fast or fail last

interval - the interval between the iterations

timeout - the timeout for the while loop

iterations - the maximal iterations the loop

RepeatTask

public RepeatTask(C context,
                  Task<C> task,
                  Predicate<C> predicate,
                  boolean failFast,
                  long interval,
                  long timeout)

Creates a new task that executes the given tasks as long as the given predicate evaluates to true.

The task uses the given context for the execution of the task.

Parameters:

context - the context shared between the iterations

task - the task to execute while the predicate evaluates to true

predicate - the predicate used to decide whether to continue or break the loop

failFast - whether the execution of the list should fail fast or fail last

interval - the interval between the iterations

timeout - the timeout for the while loop

iterations - the maximal iterations the loop

RepeatTask

public RepeatTask(C context,
                  Task<C> task,
                  Predicate<C> predicate,
                  boolean failFast,
                  long interval,
                  long timeout,
                  int iterations)

Creates a new task that executes the given tasks as long as the given predicate evaluates to true.

The task uses the given context for the execution of the task.

Parameters:

context - the context shared between the iterations

task - the task to execute while the predicate evaluates to true

predicate - the predicate used to decide whether to continue or break the loop

failFast - whether the execution of the list should fail fast or fail last

interval - the interval between the iterations

timeout - the timeout for the while loop

iterations - the maximal iterations the loop

Method Detail

apply

public elemental2.promise.Promise<C> apply(C context)

Description copied from interface: Task

Executes the task.

Specified by:

apply in interface Task<C extends FlowContext>

Parameters:

context - the context shared between tasks

Returns:

a promise containing the shared context