Package io.delta.kernel.internal.icebergcompat

Class IcebergCompatMetadataValidatorAndUpdater

Object

io.delta.kernel.internal.icebergcompat.IcebergCompatMetadataValidatorAndUpdater

Direct Known Subclasses:

IcebergCompatV2MetadataValidatorAndUpdater, IcebergCompatV3MetadataValidatorAndUpdater, IcebergWriterCompatV1MetadataValidatorAndUpdater, IcebergWriterCompatV3MetadataValidatorAndUpdater

public abstract class IcebergCompatMetadataValidatorAndUpdater
extends Object

Contains interfaces and common utility classes for defining the iceberg conversion compatibility checks and metadata updates.

Main class is IcebergCompatMetadataValidatorAndUpdater which takes:

• TableConfig to check if the table is enabled iceberg compat property enabled. When enabled, the metadata will be validated and updated.
• List of TableFeatures expected to be supported by the protocol
• List of IcebergCompatMetadataValidatorAndUpdater.IcebergCompatRequiredTablePropertyEnforcer that enforce certain properties must be set for IcebergV2 compatibility. If the property is not set, we will set it to a default value. It will also update the metadata to make it compatible with Iceberg compat version targeted.
• List of IcebergCompatMetadataValidatorAndUpdater.IcebergCompatCheck to validate the metadata and protocol. The checks can be like what are the table features not supported and in what cases a certain table feature is supported (e.g. type widening is enabled, but iceberg compat only if the widening is supported in the Iceberg).

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	IcebergCompatMetadataValidatorAndUpdater.IcebergCompatInputContext	Defines the input context for the metadata validator and updater.

Constructor Summary

Constructors

Constructor	Description
IcebergCompatMetadataValidatorAndUpdater()

Method Summary

Modifier and Type	Method	Description
static Boolean	isIcebergCompatEnabled(Metadata metadata)	Returns whether Iceberg compatibility is enabled for the given table metadata.

Methods inherited from class java.lang.Object

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

Constructor Details

IcebergCompatMetadataValidatorAndUpdater

public IcebergCompatMetadataValidatorAndUpdater()

Method Details

isIcebergCompatEnabled

public static Boolean isIcebergCompatEnabled(Metadata metadata)

Returns whether Iceberg compatibility is enabled for the given table metadata. This checks if either `icebergCompatV2` or `icebergCompatV3` table property is enabled.

Parameters:

metadata - The table metadata to check.

Returns:

true if either Iceberg compatibility V2 or V3 is enabled; false otherwise.