org.apache.calcite.sql.parser

Interface SqlParserImplFactory

Functional Interface:

This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.

@FunctionalInterface
public interface SqlParserImplFactory

Factory for SqlAbstractParserImpl objects.

A parser factory allows you to include a custom parser in Planner created through Frameworks.

Method Summary

Modifier and Type	Method and Description
default DdlExecutor	getDdlExecutor() Returns a DDL executor.
org.apache.calcite.sql.parser.SqlAbstractParserImpl	getParser(Reader stream) Get the underlying parser implementation.

Method Detail

getParser

org.apache.calcite.sql.parser.SqlAbstractParserImpl getParser(Reader stream)

Get the underlying parser implementation.

Returns:

SqlAbstractParserImpl object.

getDdlExecutor

default DdlExecutor getDdlExecutor()

Returns a DDL executor.

The default implementation returns DdlExecutor.USELESS, which cannot handle any DDL commands.

DDL execution is related to parsing but it is admittedly a stretch to control them in the same factory. Therefore this is marked 'experimental'. We are bundling them because they are often overridden at the same time. In particular, we want a way to refine the behavior of the "server" module, which supports DDL parsing and execution, and we're not yet ready to define a new Driver or CalciteServer.