org.apache.drill.exec.store.http

Class HttpAPIConnectionSchema

java.lang.Object

org.apache.drill.exec.store.AbstractSchema

org.apache.drill.exec.store.http.HttpAPIConnectionSchema

All Implemented Interfaces:

AutoCloseable, org.apache.calcite.schema.Schema, SchemaPartitionExplorer

public class HttpAPIConnectionSchema
extends AbstractSchema

In the HTTP storage plugin, users can define specific connections or APIs. This class represents the database component of other storage plugins.

Nested Class Summary

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

org.apache.calcite.schema.Schema.TableType

Field Summary

Fields inherited from class org.apache.drill.exec.store.AbstractSchema

name, SCHEMA_SEPARATOR, schemaPath

Constructor Summary

Constructors

Constructor and Description
HttpAPIConnectionSchema(HttpSchemaFactory.HttpSchema parent, String name, HttpStoragePlugin plugin)

Method Summary

Modifier and Type	Method and Description
org.apache.calcite.schema.Table	getTable(String tableName) Gets the table that is received from the query.
Set<String>	getTableNames()
String	getTypeName() Returns string describing schema type which shows where the schema came from.

Methods inherited from class org.apache.drill.exec.store.AbstractSchema

appendToStatsTable, applyFunctionParameters, areTableNamesCaseSensitive, close, createNewTable, createNewTable, createStatsTable, createView, dropTable, dropView, getDefaultSchema, getExpression, getFullSchemaName, getFunctionNames, getFunctionParameters, getFunctions, getName, getSchemaPath, getStatsTable, getSubPartitions, getSubSchema, getSubSchemaNames, getTableNamesAndTypes, getTablesByNames, getType, getTypeMap, getTypeNames, getUser, isMutable, needToImpersonateReadingData, showInInformationSchema, snapshot, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

HttpAPIConnectionSchema

public HttpAPIConnectionSchema(HttpSchemaFactory.HttpSchema parent,
                               String name,
                               HttpStoragePlugin plugin)

Method Detail

getTypeName

public String getTypeName()

Description copied from class: AbstractSchema

Returns string describing schema type which shows where the schema came from. Good practice here is to return json type name of storage plugin's config.

Specified by:

getTypeName in class AbstractSchema

Returns:

schema type name

getTable

public org.apache.calcite.schema.Table getTable(String tableName)

Gets the table that is received from the query. In this case, the table actually are arguments which are passed in the URL string.

Specified by:

getTable in interface org.apache.calcite.schema.Schema

Overrides:

getTable in class AbstractSchema

Parameters:

tableName - The "tableName" actually will contain the URL arguments passed to the record reader

Returns:

the selected table

getTableNames

public Set<String> getTableNames()

Specified by:

getTableNames in interface org.apache.calcite.schema.Schema

Overrides:

getTableNames in class AbstractSchema