com.azure.resourcemanager.resources.fluentcore.dag

Class TaskGroupEntry<TaskT extends TaskItem>

java.lang.Object

com.azure.resourcemanager.resources.fluentcore.dag.Node<DataT,NodeT>

com.azure.resourcemanager.resources.fluentcore.dag.DAGNode<TaskT,TaskGroupEntry<TaskT>>

com.azure.resourcemanager.resources.fluentcore.dag.TaskGroupEntry<TaskT>

Type Parameters:

TaskT - the task type that can return a value

public final class TaskGroupEntry<TaskT extends TaskItem>
extends DAGNode<TaskT,TaskGroupEntry<TaskT>>

Type representing an entry in TaskGroup that holds one TaskItem and associated information which includes: 1. references to other TaskGroupEntry dependencies 2. references to the other TaskGroupEntry dependents

Method Summary

Modifier and Type	Method and Description
boolean	hasFaultedDescentDependencyTasks()
void	initialize() Initialize the node so that traversal can be performed on the parent DAG.
Mono<Indexable>	invokeTaskAsync(boolean ignoreCachedResult, TaskGroup.InvocationContext context) Invokes the task this entry holds.
protected void	onFaultedResolution(String dependencyKey, Throwable throwable) Reports a dependency of this node has been faulted.
TaskGroupEntry<TaskT>	proxy()
void	setProxy(TaskGroupEntry<TaskT> proxy) Set the proxy entry for this entry.
Indexable	taskResult()

Methods inherited from class com.azure.resourcemanager.resources.fluentcore.dag.DAGNode

addDependency, addDependent, dependencyKeys, hasDependencies, isPreparer, lock, onSuccessfulResolution, removeDependency, setPreparer

Methods inherited from class com.azure.resourcemanager.resources.fluentcore.dag.Node

addChild, children, data, hasChildren, key, owner, removeChild, setOwner

Methods inherited from class java.lang.Object

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

Method Detail

initialize

public void initialize()

Description copied from class: DAGNode

Initialize the node so that traversal can be performed on the parent DAG.

Overrides:

initialize in class DAGNode<TaskT extends TaskItem,TaskGroupEntry<TaskT extends TaskItem>>

setProxy

public void setProxy(TaskGroupEntry<TaskT> proxy)

Set the proxy entry for this entry.

Parameters:

proxy - the proxy entry

proxy

public TaskGroupEntry<TaskT> proxy()

Returns:

the proxy entry if it is set, null if not set.

taskResult

public Indexable taskResult()

Returns:

the result produced by the task.

hasFaultedDescentDependencyTasks

public boolean hasFaultedDescentDependencyTasks()

Returns:

true if one or more decedent dependency tasks are in faulted state, false otherwise.

invokeTaskAsync

public Mono<Indexable> invokeTaskAsync(boolean ignoreCachedResult,
                                       TaskGroup.InvocationContext context)

Invokes the task this entry holds. if the task cannot be invoked due to faulted dependencies then an observable that emit ErroredDependencyTaskException will be returned.

Parameters:

ignoreCachedResult - if the task is already invoked and has result cached then a value false for this parameter indicates the cached result can be returned without invoking task again, if true then cached result will be ignored and task will be invoked

context - the context object shared across all the entries in the group that this entry belongs to, this will be passed to TaskItem.invokeAsync(TaskGroup.InvocationContext) method of the task item

Returns:

a cold Observable upon subscription invokes the task this entry hold, which produces a result of type Indexable.

onFaultedResolution

protected void onFaultedResolution(String dependencyKey,
                                   Throwable throwable)

Description copied from class: DAGNode

Reports a dependency of this node has been faulted.

Overrides:

onFaultedResolution in class DAGNode<TaskT extends TaskItem,TaskGroupEntry<TaskT extends TaskItem>>

Parameters:

dependencyKey - the id of the dependency node

throwable - the reason for unsuccessful resolution