Package org.apache.calcite.adapter.elasticsearch

Class ElasticsearchSchema

java.lang.Object

org.apache.calcite.schema.impl.AbstractSchema

org.apache.calcite.adapter.elasticsearch.ElasticsearchSchema

All Implemented Interfaces:

Schema

public class ElasticsearchSchema
extends AbstractSchema

Each table in the schema is an ELASTICSEARCH index.

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

Constructor Summary

Constructors

Constructor	Description
ElasticsearchSchema(org.elasticsearch.client.RestClient client, com.fasterxml.jackson.databind.ObjectMapper mapper, @Nullable String index)	Allows schema to be instantiated from existing elastic search client.

Method Summary

Modifier and Type	Method	Description
protected Map<String,Table>	getTableMap()	Returns a map of tables in this schema by name.

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

getExpression, getFunctionMultimap, getFunctionNames, getFunctions, getSubSchema, getSubSchemaMap, getSubSchemaNames, getTable, getTableNames, getType, getTypeMap, getTypeNames, isMutable, snapshot, subSchemas, tables

Methods inherited from class java.lang.Object

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

Constructor Details

ElasticsearchSchema

public ElasticsearchSchema(org.elasticsearch.client.RestClient client,
 com.fasterxml.jackson.databind.ObjectMapper mapper,
 @Nullable String index)

Allows schema to be instantiated from existing elastic search client.

Parameters:

client - existing client instance

mapper - mapper for JSON (de)serialization

index - name of ES index

Method Details

getTableMap

protected Map<String,Table> getTableMap()

Description copied from class: AbstractSchema

Returns a map of tables in this schema by name.

The implementations of AbstractSchema.getTableNames() and AbstractSchema.getTable(String) depend on this map. The default implementation of this method returns the empty map. Override this method to change their behavior.

Overrides:

getTableMap in class AbstractSchema

Returns:

Map of tables in this schema by name