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

Class NoopDruidSchemaManager

java.lang.Object

org.apache.druid.sql.calcite.schema.NoopDruidSchemaManager

All Implemented Interfaces:

DruidSchemaManager

public class NoopDruidSchemaManager
extends Object
implements DruidSchemaManager

Field Summary

Fields

Modifier and Type	Field	Description
static final String	TYPE

Constructor Summary

Constructors

Constructor	Description
NoopDruidSchemaManager()

Method Summary

Modifier and Type	Method	Description
Map<String,DruidTable>	getTables()	Return all tables known to this schema manager.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.druid.sql.calcite.schema.DruidSchemaManager

getTable, getTableNames

Field Details

TYPE

public static final String TYPE

See Also:

• Constant Field Values

Constructor Details

NoopDruidSchemaManager

public NoopDruidSchemaManager()

Method Details

getTables

public Map<String,DruidTable> getTables()

Description copied from interface: DruidSchemaManager

Return all tables known to this schema manager. Deprecated because getting all tables is never actually needed in the current code. Calcite asks for the information for a single table (via DruidSchemaManager.getTable(String, BrokerSegmentMetadataCache), or the list of all table names (via DruidSchemaManager.getTableNames(BrokerSegmentMetadataCache). This method was originally used to allow Calcite's AbstractSchema class to do the lookup. The current code implements the operations directly. For backward compatibility, the default methods emulate the old behavior. Newer implementations should omit this method and implement the other two.

Specified by:

getTables in interface DruidSchemaManager