Class ChangeStreamMutation (2.29.1)

A ChangeStreamMutation represents a list of mods(represented by List<Entry>) targeted at a single row, which is concatenated by ChangeStreamRecordMerger. It represents a logical row mutation and can be converted to the original write request(i.e. RowMutation or RowMutationEntry.

A ChangeStreamMutation can be constructed in two ways, depending on whether it's a user initiated mutation or a Garbage Collection mutation. Either way, the caller should explicitly set token and estimatedLowWatermark before build(), otherwise it'll raise an error.

Case 1) User initiated mutation.

 ChangeStreamMutation.Builder builder = ChangeStreamMutation.createUserMutation(...);
 builder.setCell(...);
 builder.deleteFamily(...);
 builder.deleteCells(...);
 ChangeStreamMutation changeStreamMutation = builder.setToken(...).setEstimatedLowWatermark().build();
 

Case 2) Garbage Collection mutation.

 ChangeStreamMutation.Builder builder = ChangeStreamMutation.createGcMutation(...);
 builder.setCell(...);
 builder.deleteFamily(...);
 builder.deleteCells(...);
 ChangeStreamMutation changeStreamMutation = builder.setToken(...).setEstimatedLowWatermark().build();
 

Get the commit timestamp of the current mutation.

Get the list of mods of the current mutation.

Get the low watermark of the current mutation.

Get the row key of the current mutation.

Get the source cluster id of the current mutation.

Get the tie breaker of the current mutation. This is used to resolve conflicts when multiple mutations are applied to different clusters at the same time.

Get the token of the current mutation, which can be used to resume the changestream.

Get the type of the current mutation.