Package com.google.adk.workflow

Class Start

java.lang.Object

com.google.adk.workflow.Start

All Implemented Interfaces:

Node

@Experimental
public final class Start
extends Object
implements Node

The node that marks where a workflow graph starts. It never runs: the workflow passes its own input to the nodes that Start has edges to.

Field Summary

Fields

Modifier and Type	Field	Description
static final Start	INSTANCE	The start node that every graph uses.

Method Summary

Modifier and Type	Method	Description
String	name()	Returns the name that identifies the node within its graph.
io.reactivex.rxjava3.core.Flowable<?>	runNode(Context context, @Nullable Object nodeInput)	Runs the node on nodeInput, the output it receives from its predecessors.

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.google.adk.workflow.Node

config, description, inputSchema, outputSchema, requiresAllPredecessors, rerunOnResume, stateSchema, waitForOutput

Field Details

INSTANCE

public static final Start INSTANCE

The start node that every graph uses.

Method Details

name

public String name()

Description copied from interface: Node

Returns the name that identifies the node within its graph.

Specified by:

name in interface Node

runNode

public io.reactivex.rxjava3.core.Flowable<?> runNode(Context context,
 @Nullable Object nodeInput)

Description copied from interface: Node

Runs the node on nodeInput, the output it receives from its predecessors.

An emitted Event passes through, an emitted RequestInput pauses the workflow until the user answers it, and any other emitted value becomes the node's output (at most one per run); emit nothing for no output, since RxJava forbids null. The wildcard lets an implementation return a Flowable of its own type.

Specified by:

runNode in interface Node