> ## Documentation Index
> Fetch the complete documentation index at: https://docs.canton.network/llms.txt
> Use this file to discover all available pages before exploring further.

# TopologyEvent

> This interface represents events in TopologyTransactions.

## TopologyEvent - stable

Upstream docs: [Open](https://javadoc.io/doc/com.daml/bindings-java/3.4.11/com/daml/ledger/javaapi/data/TopologyEvent.html)

**Signature**

```text theme={"theme":{"light":"github-light","dark":"github-dark"}}
public interface TopologyEvent
```

**Members**

| Docs                                                                                                                                                                                                | Member                                                        | Introduced | Deprecated | Removed |
| --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------- | ---------- | ---------- | ------- |
| [Open](https://javadoc.io/doc/com.daml/bindings-java/3.4.11/com/daml/ledger/javaapi/data/TopologyEvent.html#fromProtoEvent%28com.daml.ledger.api.v2.TopologyTransactionOuterClass.TopologyEvent%29) | `fromProtoEvent(TopologyTransactionOuterClass.TopologyEvent)` | `3.4.8`    | -          | -       |
| [Open](https://javadoc.io/doc/com.daml/bindings-java/3.4.11/com/daml/ledger/javaapi/data/TopologyEvent.html#getParticipantId%28%29)                                                                 | `getParticipantId()`                                          | `3.4.8`    | -          | -       |
| [Open](https://javadoc.io/doc/com.daml/bindings-java/3.4.11/com/daml/ledger/javaapi/data/TopologyEvent.html#toProtoEvent%28%29)                                                                     | `toProtoEvent()`                                              | `3.4.8`    | -          | -       |