gudusoft.gsqlparser.common.structured

Class DeclaredTypeNode

Object

gudusoft.gsqlparser.common.structured.DeclaredTypeNode

public final class DeclaredTypeNode
extends Object

One node of the type a column's DDL declares, read by DeclaredTypeReader from whichever members of TTypeName the dialect's grammar fills (plan section 4.2): a STRUCT with its fields in declaration order, an ARRAY with its element, a MAP with its key and value, or a scalar.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	DeclaredTypeNode.Kind

Method Summary

Modifier and Type	Method and Description
DeclaredTypeNode	getElement() For an ARRAY its element, for a MAP its value; null when the grammar dropped it.
TObjectName	getFieldName() For a STRUCT member, the name as the DDL writes it (its token is the field's identity); null otherwise.
List<DeclaredTypeNode>	getFields() For a STRUCT, its fields in declaration order; null when the grammar kept no member list (STRUCT<T>, Databricks ROW(...)), so the fields are not known.
DeclaredTypeNode	getKey() For a MAP its key; null otherwise or when the grammar dropped it.
DeclaredTypeNode.Kind	getKind()
TTypeName	getSource() The type as parsed, for its position.

Methods inherited from class Object

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

Method Detail

getKind

public DeclaredTypeNode.Kind getKind()

getFieldName

public TObjectName getFieldName()

For a STRUCT member, the name as the DDL writes it (its token is the field's identity); null otherwise.

getFields

public List<DeclaredTypeNode> getFields()

For a STRUCT, its fields in declaration order; null when the grammar kept no member list (STRUCT<T>, Databricks ROW(...)), so the fields are not known.

getElement

public DeclaredTypeNode getElement()

For an ARRAY its element, for a MAP its value; null when the grammar dropped it.

getKey

public DeclaredTypeNode getKey()

For a MAP its key; null otherwise or when the grammar dropped it.

getSource

public TTypeName getSource()

The type as parsed, for its position.