ChangeMap (cayenne-commitlog: Cayenne Commit Log Module 4.1 API)

All Known Implementing Classes:

MutableChangeMap
```
public interface ChangeMap
```
Represents a map of changes for a graph of persistent objects.

Since:

4.0

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`Map<org.apache.cayenne.ObjectId,? extends ObjectChange>`	`getChanges()`	Returns a map of changes.
`Collection<? extends ObjectChange>`	`getUniqueChanges()`

- Method Detail
  - getChanges
```
Map<org.apache.cayenne.ObjectId,? extends ObjectChange> getChanges()
```
    Returns a map of changes. Note the same change sometimes can be present in the map twice. If ObjectId of an object has changed during the commit, the change will be accessible by both pre-commit and post-commit ID. To get unique changes, call getUniqueChanges().
  - getUniqueChanges
```
Collection<? extends ObjectChange> getUniqueChanges()
```