org.apache.gravitino

Enum MetadataObject.Type

java.lang.Object

java.lang.Enum<MetadataObject.Type>

org.apache.gravitino.MetadataObject.Type

All Implemented Interfaces:

java.io.Serializable, java.lang.Comparable<MetadataObject.Type>

Enclosing interface:

MetadataObject

public static enum MetadataObject.Type
extends java.lang.Enum<MetadataObject.Type>

The type of object in the Gravitino system. Every type will map one kind of the entity of the underlying system.

Enum Constant Summary

Enum Constants

Enum Constant and Description
CATALOG A catalog is a collection of metadata from a specific metadata source, like Apache Hive catalog, Apache Iceberg catalog, JDBC catalog, etc.
COLUMN A column is a sub-collection of the table that represents a group of same type data.
FILESET A fileset is mapped to a directory on a file system like HDFS, S3, ADLS, GCS, etc.
METALAKE A metalake is a concept of tenant.
ROLE A role is an object contains specific securable objects with privileges
SCHEMA A schema is a sub collection of the catalog.
TABLE A table is mapped the table of relational data sources like Apache Hive, MySQL, etc.
TOPIC A topic is mapped the topic of messaging data sources like Apache Kafka, Apache Pulsar, etc.

Method Summary

Modifier and Type	Method and Description
static MetadataObject.Type	valueOf(java.lang.String name) Returns the enum constant of this type with the specified name.
static MetadataObject.Type[]	values() Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited from class java.lang.Enum

clone, compareTo, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Detail

METALAKE

public static final MetadataObject.Type METALAKE

A metalake is a concept of tenant. It means an organization. A metalake contains many data sources.

CATALOG

public static final MetadataObject.Type CATALOG

A catalog is a collection of metadata from a specific metadata source, like Apache Hive catalog, Apache Iceberg catalog, JDBC catalog, etc.

SCHEMA

public static final MetadataObject.Type SCHEMA

A schema is a sub collection of the catalog. The schema can contain filesets, tables, topics, etc.

FILESET

public static final MetadataObject.Type FILESET

A fileset is mapped to a directory on a file system like HDFS, S3, ADLS, GCS, etc.

TABLE

public static final MetadataObject.Type TABLE

A table is mapped the table of relational data sources like Apache Hive, MySQL, etc.

TOPIC

public static final MetadataObject.Type TOPIC

A topic is mapped the topic of messaging data sources like Apache Kafka, Apache Pulsar, etc.

COLUMN

public static final MetadataObject.Type COLUMN

A column is a sub-collection of the table that represents a group of same type data.

ROLE

public static final MetadataObject.Type ROLE

A role is an object contains specific securable objects with privileges

Method Detail

values

public static MetadataObject.Type[] values()

Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:

for (MetadataObject.Type c : MetadataObject.Type.values())
    System.out.println(c);

Returns:

an array containing the constants of this enum type, in the order they are declared

valueOf

public static MetadataObject.Type valueOf(java.lang.String name)

Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)

Parameters:

name - the name of the enum constant to be returned.

Returns:

the enum constant with the specified name

Throws:

java.lang.IllegalArgumentException - if this enum type has no constant with the specified name

java.lang.NullPointerException - if the argument is null