gudusoft.gsqlparser.ir.semantic.catalog

Class CatalogColumn

Object

gudusoft.gsqlparser.ir.semantic.catalog.CatalogColumn

public final class CatalogColumn
extends Object

Slice 76 — minimal column descriptor inside a Catalog.

Slice 173 (join-analysis S12) extends it with optional, additive metadata — declared data type, nullability, and PRIMARY KEY / UNIQUE / indexed flags — that external callers may supply. The parser never fetches these; they are accepted and surfaced verbatim. The one-arg constructor and all prior behaviour are unchanged: a column built with just a name reports null type, null nullability (unknown), and false key/index flags.

Identifier semantics (case folding, quoted vs unquoted, vendor rules) are delegated to TSQLEnv via the analyzer's internal bridge — names are stored exactly as written by the caller.

This class is immutable and safe to share across threads.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	CatalogColumn.Builder Fluent builder for a CatalogColumn with optional metadata.

Constructor Summary

Constructors

Constructor and Description
CatalogColumn(String name)
CatalogColumn(String name, String dataType, Boolean nullable, boolean primaryKey, boolean unique, boolean indexed) Full constructor (slice 173).

Method Summary

Modifier and Type	Method and Description
static CatalogColumn.Builder	builder(String name) A fresh builder for a column with the given name.
String	getDataType() Declared data type, or null when not supplied.
String	getName()
Boolean	getNullable() TRUE/FALSE when known, null when unknown.
boolean	isIndexed()
boolean	isPrimaryKey()
boolean	isUnique()
String	toString()

Methods inherited from class Object

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

Constructor Detail

CatalogColumn

public CatalogColumn(String name)

Parameters:

name - the column name as written by the caller; must be non-null and non-empty.

Throws:

IllegalArgumentException - when name is null or empty.

CatalogColumn

public CatalogColumn(String name,
                     String dataType,
                     Boolean nullable,
                     boolean primaryKey,
                     boolean unique,
                     boolean indexed)

Full constructor (slice 173). All metadata is optional: dataType may be null, nullable may be null (unknown), and the key/index flags default to false.

Method Detail

builder

public static CatalogColumn.Builder builder(String name)

A fresh builder for a column with the given name.

getName

public String getName()

getDataType

public String getDataType()

Declared data type, or null when not supplied.

getNullable

public Boolean getNullable()

TRUE/FALSE when known, null when unknown.

isPrimaryKey

public boolean isPrimaryKey()

isUnique

public boolean isUnique()

isIndexed

public boolean isIndexed()

toString

public String toString()

Overrides:

toString in class Object