HeatmapIdentifierRegistry

```
public interface HeatmapIdentifierRegistry

                    
```
Stores and retrieves HeatmapIdentifiers keyed by composite view identity key (see heatmapViewKey).
Implementations must be thread-safe: the write side (Session Replay) may call setHeatmapIdentifiers from a background traversal thread while the read side (RUM) calls getHeatmapIdentifier from the main thread.

Nested Class Summary

Nested Classes
Modifier and Type	Class	Description
`public class`	`HeatmapIdentifierRegistry.Companion`

Method Summary

Modifier and Type	Method	Description
`abstract Unit`	`setHeatmapIdentifiers(Map<Long, HeatmapIdentifier> identifiers, String screenName)`	Replaces the current snapshot with identifiers, scoped to screenName.
`abstract HeatmapIdentifier`	`getHeatmapIdentifier(Long heatmapViewKey, String currentScreenName)`	Returns the HeatmapIdentifier for the view with the given heatmapViewKey, or null if the view is unknown or if currentScreenName does not match the screen that produced the current snapshot (indicating the snapshot is stale).

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

- Method Detail
  - setHeatmapIdentifiers
```
 abstract Unit setHeatmapIdentifiers(Map<Long, HeatmapIdentifier> identifiers, String screenName)
```
    Replaces the current snapshot with identifiers, scoped to screenName.
    
    Parameters:
    
    identifiers - a map of view identity keys (see heatmapViewKey) to their HeatmapIdentifiers.
    
    screenName - the RUM view URL active when the snapshot was computed.
  - getHeatmapIdentifier
```
 abstract HeatmapIdentifier getHeatmapIdentifier(Long heatmapViewKey, String currentScreenName)
```
    Returns the HeatmapIdentifier for the view with the given heatmapViewKey, or null if the view is unknown or if currentScreenName does not match the screen that produced the current snapshot (indicating the snapshot is stale).
    
    Parameters:
    
    heatmapViewKey - the composite identity key of the tapped view, as returned by heatmapViewKey.
    
    currentScreenName - the RUM view URL active at the time of the tap.