org.apache.iceberg

Interface PendingUpdate<T>

Type Parameters:

T - Java class of changes from this update; returned by apply() for validation.

All Known Subinterfaces:

AppendFiles, DeleteFiles, ExpireSnapshots, ManageSnapshots, OverwriteFiles, ReplacePartitions, ReplaceSortOrder, RewriteFiles, RewriteManifests, Rollback, RowDelta, SnapshotUpdate<ThisT>, UpdateLocation, UpdatePartitionSpec, UpdateProperties, UpdateSchema

All Known Implementing Classes:

BaseOverwriteFiles, BaseReplacePartitions, BaseReplaceSortOrder, BaseRewriteManifests, SetLocation, SnapshotManager

public interface PendingUpdate<T>

API for table metadata changes.

Method Summary

Modifier and Type	Method and Description
T	apply() Apply the pending changes and return the uncommitted changes for validation.
void	commit() Apply the pending changes and commit.
default java.lang.Object	updateEvent() Generates update event to notify about metadata changes

Method Detail

apply

T apply()

Apply the pending changes and return the uncommitted changes for validation.

This does not result in a permanent update.

Returns:

the uncommitted changes that would be committed by calling commit()

Throws:

ValidationException - If the pending changes cannot be applied to the current metadata

java.lang.IllegalArgumentException - If the pending changes are conflicting or invalid

commit

void commit()

Apply the pending changes and commit.

Changes are committed by calling the underlying table's commit method.

Once the commit is successful, the updated table will be refreshed.

Throws:

ValidationException - If the update cannot be applied to the current table metadata.

CommitFailedException - If the update cannot be committed due to conflicts.

updateEvent

default java.lang.Object updateEvent()

Generates update event to notify about metadata changes

Returns:

the generated event