gudusoft.gsqlparser.powerquery

Class ConnectorCatalog

Object

gudusoft.gsqlparser.powerquery.ConnectorCatalog

public final class ConnectorCatalog
extends Object

Maps Power Query M connector-function names to their underlying EDbVendor, and describes the navigation hierarchy each connector exposes (Database / Schema / Table, Project / Dataset / Table, etc.).

This catalog is the single source of truth for "which SQL dialect does this M step belong to?" Every new connector we support must be registered here, ideally with a quick corpus sample that demonstrates real-world use.

Aliases are intentionally case-insensitive because M is itself case-sensitive for identifier lookup, but different corpus sources occasionally normalize casing.

Method Summary

Modifier and Type	Method and Description
static List<String>	expectedHierarchy(EDbVendor vendor) Canonical navigation-segment hierarchy for a given vendor.
static boolean	isKnownConnector(String qualifiedFunctionName)
static EDbVendor	vendorFor(String qualifiedFunctionName) Look up the vendor for a qualified function name such as "Snowflake.Databases".

Methods inherited from class Object

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

Method Detail

vendorFor

public static EDbVendor vendorFor(String qualifiedFunctionName)

Look up the vendor for a qualified function name such as "Snowflake.Databases". Returns null when the connector is unknown — callers must decide whether to fall back to a user-supplied --inner-vendor override or skip the step.

expectedHierarchy

public static List<String> expectedHierarchy(EDbVendor vendor)

Canonical navigation-segment hierarchy for a given vendor. Used to validate a source{[Name=…,Kind=…]}[Data] chain's shape and to drive synthetic SQL construction in TPowerQueryAnalyzer.

isKnownConnector

public static boolean isKnownConnector(String qualifiedFunctionName)