io.cdap.cdap.api.workflow

Interface WorkflowForkConfigurer<T>

Type Parameters:

T - the type of the object returned by the join method. For the outer fork created by the WorkflowConfigurer, join method returns WorkflowConfigurer. For the nested fork created by the WorkflowForkConfigurer, join method returns WorkflowForkConfigurer of the parent fork.

public interface WorkflowForkConfigurer<T>

Defines an interface for the fork in the Workflow.

Method Summary

Modifier and Type	Method and Description
WorkflowForkConfigurer<T>	addAction(CustomAction action) Adds custom action a a next sequential step to the current branch of the WorkflowForkNode
WorkflowForkConfigurer<T>	addMapReduce(String mapReduce) Adds a MapReduce program as a next sequential step to the current branch of the WorkflowForkNode
WorkflowForkConfigurer<T>	addSpark(String spark) Adds a Spark program as a next sequential step to the current branch of the WorkflowForkNode
WorkflowForkConfigurer<T>	also() Adds a branch to the WorkflowForkNode
WorkflowConditionConfigurer<? extends WorkflowForkConfigurer<T>>	condition(Condition condition) Adds a condition to the current branch of the fork.
WorkflowConditionConfigurer<? extends WorkflowForkConfigurer<T>>	condition(Predicate<WorkflowContext> predicate) Adds a condition to the current branch of the fork.
WorkflowForkConfigurer<? extends WorkflowForkConfigurer<T>>	fork() Adds a nested fork to the current fork
T	join() Joins the current fork

Method Detail

addMapReduce

WorkflowForkConfigurer<T> addMapReduce(String mapReduce)

Adds a MapReduce program as a next sequential step to the current branch of the WorkflowForkNode

Parameters:

mapReduce - the name of the MapReduce program to be added

Returns:

the configurer for the current fork

addSpark

WorkflowForkConfigurer<T> addSpark(String spark)

Adds a Spark program as a next sequential step to the current branch of the WorkflowForkNode

Parameters:

spark - the name of the Spark program to be added

Returns:

the configurer for the current fork

addAction

WorkflowForkConfigurer<T> addAction(CustomAction action)

Adds custom action a a next sequential step to the current branch of the WorkflowForkNode

Parameters:

action - CustomAction to be added to the fork

Returns:

the configurer for the current fork

fork

WorkflowForkConfigurer<? extends WorkflowForkConfigurer<T>> fork()

Adds a nested fork to the current fork

Returns:

the configurer for the nested fork

condition

WorkflowConditionConfigurer<? extends WorkflowForkConfigurer<T>> condition(Predicate<WorkflowContext> predicate)

Adds a condition to the current branch of the fork.

Parameters:

predicate - the Predicate to be evaluated at the condition node

Returns:

the configurer for the condition

condition

WorkflowConditionConfigurer<? extends WorkflowForkConfigurer<T>> condition(Condition condition)

Adds a condition to the current branch of the fork.

Parameters:

condition - the Condition to be evaluated at the condition node

Returns:

the configurer for the condition

also

WorkflowForkConfigurer<T> also()

Adds a branch to the WorkflowForkNode

Returns:

the configurer for the fork

join

T join()

Joins the current fork

Returns:

the configurer for the parent fork