org.apache.cayenne.lifecycle.changeset
Interface ChangeSet

All Known Implementing Classes:

GenericChangeSet

public interface ChangeSet

Represents a set of changes to persistent objects corresponding to a certain lifecycle stage. The changes are presented in a more usable form compared to the internal Cayenne representation as GraphDiff. One or more changes to the same property of the same object are all combined in a single PropertyChange instance.

Since:

3.1

Field Summary

static String

OBJECT_ID_PROPERTY_NAME

Method Summary

Map<String,PropertyChange>

getChanges(Persistent object) Returns a map of changes for a given object in its context, keyed by property name.

Field Detail

OBJECT_ID_PROPERTY_NAME

static final String OBJECT_ID_PROPERTY_NAME

See Also:

Constant Field Values

Method Detail

getChanges

Map<String,PropertyChange> getChanges(Persistent object)

Returns a map of changes for a given object in its context, keyed by property name. If the object is unchanged, an empty map is returned.