BaseChangeEvent (Realm 10.10.1)

java.lang.Object
- io.realm.mongodb.mongo.events.BaseChangeEvent<DocumentT>

Type Parameters:

DocumentT - The type of the full document in the change event.
```
public abstract class BaseChangeEvent<DocumentT>
extends Object
```
Represents the set of properties that exist on all MongoDB realm change events produced by watch streams in this SDK. Other change event types inherit from this type.

Nested Class Summary

Nested Classes
Modifier and Type Class Description

static class BaseChangeEvent.OperationType
Represents the different MongoDB operations that can occur.

Method Summary

All Methods Instance Methods Abstract Methods Concrete Methods
Modifier and Type	Method	Description
`BsonDocument`	`getDocumentKey()`	The unique identifier for the document that was actually changed.
`DocumentT`	`getFullDocument()`	The full document at some point after the change has been applied.
`BaseChangeEvent.OperationType`	`getOperationType()`	Returns the operation type of the change that triggered the change event.
`UpdateDescription`	`getUpdateDescription()`	In the case of an update, the description of which fields have been added, removed or updated.
`boolean`	`hasUncommittedWrites()`	Indicates a local change event that has not yet been synchronized with a remote data store.
`abstract BsonDocument`	`toBsonDocument()`	Converts the change event to a BSON representation, as it would look on a MongoDB realm change stream, or a Realm compact watch stream.

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

- Method Detail
  - getOperationType
```
public BaseChangeEvent.OperationType getOperationType()
```
    Returns the operation type of the change that triggered the change event.
    
    Returns:
    
    the operation type of this change event.
  - getFullDocument
```
@Nullable
public DocumentT getFullDocument()
```
    The full document at some point after the change has been applied.
    
    Returns:
    
    the full document.
  - getDocumentKey
```
public BsonDocument getDocumentKey()
```
    The unique identifier for the document that was actually changed.
    
    Returns:
    
    the document key.
  - getUpdateDescription
```
@Nullable
public UpdateDescription getUpdateDescription()
```
    In the case of an update, the description of which fields have been added, removed or updated.
    
    Returns:
    
    the update description.
  - hasUncommittedWrites
```
public boolean hasUncommittedWrites()
```
    Indicates a local change event that has not yet been synchronized with a remote data store. Used only for the sync use case.
    
    Returns:
    
    whether or not this change event represents uncommitted writes.
  - toBsonDocument
```
public abstract BsonDocument toBsonDocument()
```
    Converts the change event to a BSON representation, as it would look on a MongoDB realm change stream, or a Realm compact watch stream.
    
    Returns:
    
    The BSON document representation of the change event.