ExecutableInstancePropertyTracker (AristaFlow Business Process Platform API)

```
public interface ExecutableInstancePropertyTracker
```
Interface for tracking property changes on ExecutableInstance objects.
Note: this is for internal use only!
After creation of an ExecutableInstance, there are no properties marked as changed. Any changes after the creation will be tracked and can be accessed using getChangedProperties(), getChangedNodes() and getChangedNodeProperties(int).
After storing the the ExecutableInstance, the changed properties need to be cleared by calling clearChangedProperties()

Author:

KevinGoeser

Nested Class Summary

Nested Classes
Modifier and Type	Interface	Description
`static class`	`ExecutableInstancePropertyTracker.ExecutableInstanceNodeProperty`	Node properties which are changeable in an executable instance.
`static class`	`ExecutableInstancePropertyTracker.ExecutableInstanceProperty`	Properties which are changeable in an executable instance.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`void`	`clearChangedProperties()`	Clears (resets) all properties to be unchanged.
`Set<ExecutableInstancePropertyTracker.ExecutableInstanceNodeProperty>`	`getChangedNodeProperties(int nodeID)`	Returns the node properties in the `ExecutableInstance` of the given node which have been changed.
`Set<Integer>`	`getChangedNodes()`	Returns the set of nodes which have changed properties.
`Set<ExecutableInstancePropertyTracker.ExecutableInstanceProperty>`	`getChangedProperties()`	Returns the properties of the `ExecutableInstance` which have been changed.

- Method Detail
  - getChangedProperties
```
Set<ExecutableInstancePropertyTracker.ExecutableInstanceProperty> getChangedProperties()
```
    Returns the properties of the ExecutableInstance which have been changed.
    
    Returns:
    
    The properties which have been changed.
  - getChangedNodeProperties
```
Set<ExecutableInstancePropertyTracker.ExecutableInstanceNodeProperty> getChangedNodeProperties(int nodeID)
```
    Returns the node properties in the ExecutableInstance of the given node which have been changed.
    
    Parameters:
    
    nodeID - The ID of the node.
    
    Returns:
    
    The node properties which have been changed, or null if unchanged.
  - clearChangedProperties
```
void clearChangedProperties()
```
    Clears (resets) all properties to be unchanged.
  - getChangedNodes
```
Set<Integer> getChangedNodes()
```
    Returns the set of nodes which have changed properties. The set is empty in case no property has been changed.
    
    Returns:
    
    The set of nodes which have changed properties.