org.apache.druid.sql.calcite.schema

Interface NamedSchema

All Known Implementing Classes:

NamedDruidSchema, NamedLookupSchema, NamedSystemSchema, NamedViewSchema

public interface NamedSchema

This interface provides everything that is needed to register a Schema as a sub schema to the root schema of Druid SQL. The getSchemaName() will be used to access the provided Schema via SQL.

Method Summary

Modifier and Type	Method and Description
org.apache.calcite.schema.Schema	getSchema()
String	getSchemaName()
default 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.

Method Detail

getSchemaName

String getSchemaName()

Returns:

The name that this schema should be registered to.

getSchemaResourceType

@Nullable
default 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. If this method returns null then the resource does not need any authorization.

getSchema

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

Returns:

The Schema that Calcite should use.