FlowEngine

All Implemented Interfaces:
```
@DoNotImplement() 
public interface FlowEngine

                    
```
FlowEngine provides core flow related functionality.
Corda provides an instance of DigitalSignatureVerificationService to flows via property injection.

Nested Class Summary

Nested Classes
Modifier and Type	Class	Description

Field Summary

Fields
Modifier and Type	Field	Description

Constructor Summary

Constructors
Constructor	Description

Enum Constant Summary

Enum Constants
Enum Constant	Description

Method Summary

Modifier and Type	Method	Description
`abstract UUID`	`getFlowId()`	Gets the flow id that identifies this flow.
`abstract MemberX500Name`	`getVirtualNodeName()`	Gets the MemberX500Name of the current virtual node executing the flow.
`abstract FlowContextProperties`	`getFlowContextProperties()`	Gets the context properties of the current flow.
`abstract <R> R`	`subFlow(@NotNull() SubFlow<R> subFlow)`	Executes the given SubFlow.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
- Method Detail
  - getFlowId
```
@NotNull() abstract UUID getFlowId()
```
    Gets the flow id that identifies this flow.
    A subFlow shares the same flow id as the flow that invoked it via subFlow.
  - getVirtualNodeName
```
@NotNull() abstract MemberX500Name getVirtualNodeName()
```
    Gets the MemberX500Name of the current virtual node executing the flow.
  - getFlowContextProperties
```
@NotNull() abstract FlowContextProperties getFlowContextProperties()
```
    Gets the context properties of the current flow.
  - subFlow
```
@Suspendable() abstract <R> R subFlow(@NotNull() SubFlow<R> subFlow)
```
    Executes the given SubFlow.
    This function returns once the SubFlow completes, returning either:
    The result executing of call.
    An exception thrown by call.
    Any open FlowSessions created within a SubFlow annotated with InitiatingFlow are sent:
    Session close messages after successfully completing the SubFlow.
    Session error messages when an exception is thrown from the SubFlow.
    Parameters:
    
    subFlow - The SubFlow to execute.
    
    Returns:
    
    The result of executing call.