Package org.apache.iceberg.viewdepoc

Class BaseMetastoreViewOperations

java.lang.Object

org.apache.iceberg.viewdepoc.BaseMetastoreViewOperations

All Implemented Interfaces:

ViewOperations

Direct Known Subclasses:

NessieViewOperations

public abstract class BaseMetastoreViewOperations
extends Object
implements ViewOperations

Field Summary

Fields

Modifier and Type	Field	Description
static final String	METADATA_FOLDER_NAME
static final String	METADATA_LOCATION_PROP
static final String	PREVIOUS_METADATA_LOCATION_PROP

Constructor Summary

Constructors

Constructor	Description
BaseMetastoreViewOperations()

Method Summary

Modifier and Type	Method	Description
ViewVersionMetadata	current()	Return the currently loaded view metadata, without checking for updates.
String	currentMetadataLocation()
int	currentVersion()
protected void	refreshFromMetadataLocation(String newLocation, Predicate<Exception> shouldRetry, int numRetries, Function<String,ViewVersionMetadata> metadataLoader)
protected void	requestRefresh()
protected String	writeNewMetadata(ViewVersionMetadata metadata, int version)

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.iceberg.viewdepoc.ViewOperations

commit, drop, extraProperties, io, refresh

Field Details

METADATA_LOCATION_PROP

public static final String METADATA_LOCATION_PROP

See Also:

• Constant Field Values

PREVIOUS_METADATA_LOCATION_PROP

public static final String PREVIOUS_METADATA_LOCATION_PROP

See Also:

• Constant Field Values

METADATA_FOLDER_NAME

public static final String METADATA_FOLDER_NAME

See Also:

• Constant Field Values

Constructor Details

BaseMetastoreViewOperations

public BaseMetastoreViewOperations()

Method Details

current

public ViewVersionMetadata current()

Description copied from interface: ViewOperations

Return the currently loaded view metadata, without checking for updates.

Specified by:

current in interface ViewOperations

Returns:

view version metadata

currentMetadataLocation

public String currentMetadataLocation()

currentVersion

public int currentVersion()

requestRefresh

protected void requestRefresh()

writeNewMetadata

protected String writeNewMetadata(ViewVersionMetadata metadata,
 int version)

refreshFromMetadataLocation

protected void refreshFromMetadataLocation(String newLocation,
 Predicate<Exception> shouldRetry,
 int numRetries,
 Function<String,ViewVersionMetadata> metadataLoader)