Package org.apache.iceberg

Class DataOperations

java.lang.Object

org.apache.iceberg.DataOperations

public class DataOperations
extends Object

Data operations that produce snapshots.

A snapshot can return the operation that created the snapshot to help other components ignore snapshots that are not needed for some tasks. For example, snapshot expiration does not need to clean up deleted files for appends, which have no deleted files.

Field Summary

Fields

Modifier and Type	Field	Description
static final String	APPEND	New data is appended to the table and no data is removed or deleted.
static final String	DELETE	Data is deleted from the table and no data is added.
static final String	OVERWRITE	New data is added to overwrite existing data.
static final String	REPLACE	Files are removed and replaced, without changing the data in the table.

Method Summary

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

APPEND

public static final String APPEND

New data is appended to the table and no data is removed or deleted.

This operation is implemented by AppendFiles.

See Also:

• Constant Field Values

REPLACE

public static final String REPLACE

Files are removed and replaced, without changing the data in the table.

This operation is implemented by RewriteFiles.

See Also:

• Constant Field Values

OVERWRITE

public static final String OVERWRITE

New data is added to overwrite existing data.

This operation is implemented by OverwriteFiles and ReplacePartitions.

See Also:

• Constant Field Values

DELETE

public static final String DELETE

Data is deleted from the table and no data is added.

This operation is implemented by DeleteFiles.

See Also:

• Constant Field Values