org.apache.iceberg.jdbc

Class JdbcCatalog

java.lang.Object

org.apache.iceberg.BaseMetastoreCatalog

org.apache.iceberg.jdbc.JdbcCatalog

All Implemented Interfaces:

java.io.Closeable, java.lang.AutoCloseable, Catalog, SupportsNamespaces, Configurable<org.apache.hadoop.conf.Configuration>

public class JdbcCatalog
extends BaseMetastoreCatalog
implements Configurable<org.apache.hadoop.conf.Configuration>, SupportsNamespaces, java.io.Closeable

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.iceberg.BaseMetastoreCatalog

BaseMetastoreCatalog.BaseMetastoreCatalogTableBuilder

Nested classes/interfaces inherited from interface org.apache.iceberg.catalog.Catalog

Catalog.TableBuilder

Field Summary

Fields

Modifier and Type	Field and Description
static java.lang.String	PROPERTY_PREFIX

Constructor Summary

Constructors

Constructor and Description
JdbcCatalog()

Method Summary

Modifier and Type	Method and Description
void	close()
void	createNamespace(Namespace namespace, java.util.Map<java.lang.String,java.lang.String> metadata) Create a namespace in the catalog.
protected java.lang.String	defaultWarehouseLocation(TableIdentifier table)
boolean	dropNamespace(Namespace namespace) Drop a namespace.
boolean	dropTable(TableIdentifier identifier, boolean purge) Drop a table; optionally delete data and metadata files.
void	initialize(java.lang.String name, java.util.Map<java.lang.String,java.lang.String> properties) Initialize a catalog given a custom name and a map of catalog properties.
java.util.List<Namespace>	listNamespaces(Namespace namespace) List namespaces from the namespace.
java.util.List<TableIdentifier>	listTables(Namespace namespace) Return all the identifiers under this namespace.
java.util.Map<java.lang.String,java.lang.String>	loadNamespaceMetadata(Namespace namespace) Load metadata properties for a namespace.
java.lang.String	name() Return the name for this catalog.
boolean	namespaceExists(Namespace namespace) Checks whether the Namespace exists.
protected TableOperations	newTableOps(TableIdentifier tableIdentifier)
boolean	removeProperties(Namespace namespace, java.util.Set<java.lang.String> properties) Remove a set of property keys from a namespace in the catalog.
void	renameTable(TableIdentifier from, TableIdentifier to) Rename a table.
void	setConf(org.apache.hadoop.conf.Configuration conf)
boolean	setProperties(Namespace namespace, java.util.Map<java.lang.String,java.lang.String> properties) Set a collection of properties on a namespace in the catalog.

Methods inherited from class org.apache.iceberg.BaseMetastoreCatalog

buildTable, fullTableName, isValidIdentifier, loadTable, toString

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.iceberg.catalog.SupportsNamespaces

createNamespace, listNamespaces

Methods inherited from interface org.apache.iceberg.catalog.Catalog

createTable, createTable, createTable, createTable, dropTable, invalidateTable, newCreateTableTransaction, newCreateTableTransaction, newCreateTableTransaction, newCreateTableTransaction, newReplaceTableTransaction, newReplaceTableTransaction, newReplaceTableTransaction, newReplaceTableTransaction, registerTable, tableExists

Field Detail

PROPERTY_PREFIX

public static final java.lang.String PROPERTY_PREFIX

See Also:

Constant Field Values

Constructor Detail

JdbcCatalog

public JdbcCatalog()

Method Detail

initialize

public void initialize(java.lang.String name,
                       java.util.Map<java.lang.String,java.lang.String> properties)

Description copied from interface: Catalog

Initialize a catalog given a custom name and a map of catalog properties.

A custom Catalog implementation must have a no-arg constructor. A compute engine like Spark or Flink will first initialize the catalog without any arguments, and then call this method to complete catalog initialization with properties passed into the engine.

Specified by:

initialize in interface Catalog

Parameters:

name - a custom name for the catalog

properties - catalog properties

newTableOps

protected TableOperations newTableOps(TableIdentifier tableIdentifier)

Specified by:

newTableOps in class BaseMetastoreCatalog

defaultWarehouseLocation

protected java.lang.String defaultWarehouseLocation(TableIdentifier table)

Specified by:

defaultWarehouseLocation in class BaseMetastoreCatalog

dropTable

public boolean dropTable(TableIdentifier identifier,
                         boolean purge)

Description copied from interface: Catalog

Drop a table; optionally delete data and metadata files.

If purge is set to true the implementation should delete all data and metadata files.

Specified by:

dropTable in interface Catalog

Parameters:

identifier - a table identifier

purge - if true, delete all data and metadata files in the table

Returns:

true if the table was dropped, false if the table did not exist

listTables

public java.util.List<TableIdentifier> listTables(Namespace namespace)

Description copied from interface: Catalog

Return all the identifiers under this namespace.

Specified by:

listTables in interface Catalog

Parameters:

namespace - a namespace

Returns:

a list of identifiers for tables

renameTable

public void renameTable(TableIdentifier from,
                        TableIdentifier to)

Description copied from interface: Catalog

Rename a table.

Specified by:

renameTable in interface Catalog

Parameters:

from - identifier of the table to rename

to - new table name

name

public java.lang.String name()

Description copied from interface: Catalog

Return the name for this catalog.

Specified by:

name in interface Catalog

Returns:

this catalog's name

setConf

public void setConf(org.apache.hadoop.conf.Configuration conf)

Specified by:

setConf in interface Configurable<org.apache.hadoop.conf.Configuration>

createNamespace

public void createNamespace(Namespace namespace,
                            java.util.Map<java.lang.String,java.lang.String> metadata)

Description copied from interface: SupportsNamespaces

Create a namespace in the catalog.

Specified by:

createNamespace in interface SupportsNamespaces

Parameters:

namespace - a multi-part namespace

metadata - a string Map of properties for the given namespace

listNamespaces

public java.util.List<Namespace> listNamespaces(Namespace namespace)
                                         throws NoSuchNamespaceException

Description copied from interface: SupportsNamespaces

List namespaces from the namespace.

For example, if table a.b.t exists, use 'SELECT NAMESPACE IN a' this method must return Namepace.of("a","b") Namespace.

Specified by:

listNamespaces in interface SupportsNamespaces

Returns:

a List of namespace Namespace names

Throws:

NoSuchNamespaceException - If the namespace does not exist (optional)

loadNamespaceMetadata

public java.util.Map<java.lang.String,java.lang.String> loadNamespaceMetadata(Namespace namespace)
                                                                       throws NoSuchNamespaceException

Description copied from interface: SupportsNamespaces

Load metadata properties for a namespace.

Specified by:

loadNamespaceMetadata in interface SupportsNamespaces

Parameters:

namespace - a namespace. Namespace

Returns:

a string map of properties for the given namespace

Throws:

NoSuchNamespaceException - If the namespace does not exist (optional)

dropNamespace

public boolean dropNamespace(Namespace namespace)
                      throws NamespaceNotEmptyException

Description copied from interface: SupportsNamespaces

Drop a namespace. If the namespace exists and was dropped, this will return true.

Specified by:

dropNamespace in interface SupportsNamespaces

Parameters:

namespace - a namespace. Namespace

Returns:

true if the namespace was dropped, false otherwise.

Throws:

NamespaceNotEmptyException - If the namespace is not empty

setProperties

public boolean setProperties(Namespace namespace,
                             java.util.Map<java.lang.String,java.lang.String> properties)
                      throws NoSuchNamespaceException

Description copied from interface: SupportsNamespaces

Set a collection of properties on a namespace in the catalog.

Properties that are not in the given map are not modified or removed by this method.

Specified by:

setProperties in interface SupportsNamespaces

Parameters:

namespace - a namespace. Namespace

properties - a collection of metadata to apply to the namespace

Throws:

NoSuchNamespaceException - If the namespace does not exist (optional)

removeProperties

public boolean removeProperties(Namespace namespace,
                                java.util.Set<java.lang.String> properties)
                         throws NoSuchNamespaceException

Description copied from interface: SupportsNamespaces

Remove a set of property keys from a namespace in the catalog.

Properties that are not in the given set are not modified or removed by this method.

Specified by:

removeProperties in interface SupportsNamespaces

Parameters:

namespace - a namespace. Namespace

properties - a collection of metadata to apply to the namespace

Throws:

NoSuchNamespaceException - If the namespace does not exist (optional)

close

public void close()

Specified by:

close in interface java.io.Closeable

Specified by:

close in interface java.lang.AutoCloseable

namespaceExists

public boolean namespaceExists(Namespace namespace)

Description copied from interface: SupportsNamespaces

Checks whether the Namespace exists.

Specified by:

namespaceExists in interface SupportsNamespaces

Parameters:

namespace - a namespace. Namespace

Returns:

true if the Namespace exists, false otherwise