Package org.apache.druid.sql.calcite.schema

Class NamedSystemSchema

java.lang.Object

org.apache.druid.sql.calcite.schema.NamedSystemSchema

All Implemented Interfaces:

NamedSchema

public class NamedSystemSchema
extends Object
implements NamedSchema

The schema for Druid system tables to be accessible via SQL.

Field Summary

Fields

Modifier and Type	Field	Description
static final String	NAME

Constructor Summary

Constructors

Constructor	Description
NamedSystemSchema(PlannerConfig plannerConfig, SystemSchema systemSchema)

Method Summary

Modifier and Type	Method	Description
org.apache.calcite.schema.Schema	getSchema()
String	getSchemaName()
String	getSchemaResourceType(String resourceName)	For a given name of a table, function, etc of this schema, return the value most appropriate to use for Resource.getType() for the resource, used during authorization.

Methods inherited from class java.lang.Object

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

Field Details

NAME

public static final String NAME

See Also:

• Constant Field Values

Constructor Details

NamedSystemSchema

@Inject
public NamedSystemSchema(PlannerConfig plannerConfig,
 SystemSchema systemSchema)

Method Details

getSchemaName

public String getSchemaName()

Specified by:

getSchemaName in interface NamedSchema

Returns:

The name that this schema should be registered to.

getSchema

public org.apache.calcite.schema.Schema getSchema()

Specified by:

getSchema in interface NamedSchema

Returns:

The Schema that Calcite should use.

getSchemaResourceType

@Nullable
public String getSchemaResourceType(String resourceName)

Description copied from interface: NamedSchema

For a given name of a table, function, etc of this schema, return the value most appropriate to use for Resource.getType() for the resource, used during authorization. If this method returns null then the resource does not need any authorization.

Specified by:

getSchemaResourceType in interface NamedSchema