com.facebook.presto.spi

Interface SystemTable

public interface SystemTable

Exactly one of cursor(com.facebook.presto.spi.connector.ConnectorTransactionHandle, com.facebook.presto.spi.ConnectorSession, com.facebook.presto.common.predicate.TupleDomain<java.lang.Integer>) or pageSource(com.facebook.presto.spi.connector.ConnectorTransactionHandle, com.facebook.presto.spi.ConnectorSession, com.facebook.presto.common.predicate.TupleDomain<java.lang.Integer>) must be implemented.

Nested Class Summary

Nested Classes

Modifier and Type	Interface and Description
static class	SystemTable.Distribution

Method Summary

Modifier and Type	Method and Description
default RecordCursor	cursor(ConnectorTransactionHandle transactionHandle, ConnectorSession session, TupleDomain<Integer> constraint) Create a cursor for the data in this table.
SystemTable.Distribution	getDistribution()
ConnectorTableMetadata	getTableMetadata()
default ConnectorPageSource	pageSource(ConnectorTransactionHandle transactionHandle, ConnectorSession session, TupleDomain<Integer> constraint) Create a page source for the data in this table.

Method Detail

getDistribution

SystemTable.Distribution getDistribution()

getTableMetadata

ConnectorTableMetadata getTableMetadata()

cursor

default RecordCursor cursor(ConnectorTransactionHandle transactionHandle,
                            ConnectorSession session,
                            TupleDomain<Integer> constraint)

Create a cursor for the data in this table.

Parameters:

session - the session to use for creating the data

constraint - the constraints for the table columns (indexed from 0)

pageSource

default ConnectorPageSource pageSource(ConnectorTransactionHandle transactionHandle,
                                       ConnectorSession session,
                                       TupleDomain<Integer> constraint)

Create a page source for the data in this table.

Parameters:

session - the session to use for creating the data

constraint - the constraints for the table columns (indexed from 0)