org.apache.calcite.adapter.druid

Class DruidSchema

java.lang.Object

org.apache.calcite.schema.impl.AbstractSchema

org.apache.calcite.adapter.druid.DruidSchema

All Implemented Interfaces:

Schema

public class DruidSchema
extends AbstractSchema

Schema mapped onto a Druid instance.

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.calcite.schema.impl.AbstractSchema

AbstractSchema.Factory

Nested classes/interfaces inherited from interface org.apache.calcite.schema.Schema

Schema.TableType

Field Summary

Fields

Modifier and Type	Field and Description
(package private) String	coordinatorUrl
private boolean	discoverTables
(package private) String	url

Constructor Summary

Constructors

Constructor and Description
DruidSchema(String url, String coordinatorUrl, boolean discoverTables) Creates a Druid schema.

Method Summary

Modifier and Type	Method and Description
protected Map<String,Table>	getTableMap()

Methods inherited from class org.apache.calcite.schema.impl.AbstractSchema

contentsHaveChangedSince, getExpression, getFunctionMultimap, getFunctionNames, getFunctions, getSubSchema, getSubSchemaMap, getSubSchemaNames, getTable, getTableNames, isMutable

Methods inherited from class java.lang.Object

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

Field Detail

url

final String url

coordinatorUrl

final String coordinatorUrl

discoverTables

private final boolean discoverTables

Constructor Detail

DruidSchema

public DruidSchema(String url,
                   String coordinatorUrl,
                   boolean discoverTables)

Creates a Druid schema.

Parameters:

url - URL of query REST service, e.g. "http://localhost:8082"

coordinatorUrl - URL of coordinator REST service, e.g. "http://localhost:8081"

discoverTables - If true, ask Druid what tables exist; if false, only create tables explicitly in the model

Method Detail

getTableMap

protected Map<String,Table> getTableMap()

Overrides:

getTableMap in class AbstractSchema