gudusoft.gsqlparser.dlineage.dataflow.model

Class FieldDeclaration

Object

gudusoft.gsqlparser.dlineage.dataflow.model.FieldDeclaration

public final class FieldDeclaration
extends Object

The nested fields one CREATE TABLE declares for a table (plan rule R10): which columns and fields list their fields, and which field nodes the DDL made. A table keeps one per CREATE; a read is validated against the one active at its own statement (Table.getActiveFieldDeclaration()), so after DROP TABLE the next CREATE TABLE of the name replaces the fields a read may use, while a read before the DROP keeps the first.

Field Summary

Fields

Modifier and Type	Field and Description
static long	NEVER_DROPPED No statement of the script drops the table after this declaration.

Method Summary

Modifier and Type	Method and Description
boolean	declares(TableColumn node) Whether this declaration made the field node node.
boolean	declaresFieldsOf(TableColumn node) Whether the declared type of node (a column or a field) lists its fields.
long	getCreated() The ordinal of the CREATE TABLE statement; negative when unknown.
long	getDropped() The ordinal of the DROP TABLE that ends this declaration, NEVER_DROPPED when none does.

Methods inherited from class Object

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

Field Detail

NEVER_DROPPED

public static final long NEVER_DROPPED

No statement of the script drops the table after this declaration.

See Also:

Constant Field Values

Method Detail

getCreated

public long getCreated()

The ordinal of the CREATE TABLE statement; negative when unknown.

getDropped

public long getDropped()

The ordinal of the DROP TABLE that ends this declaration, NEVER_DROPPED when none does.

declaresFieldsOf

public boolean declaresFieldsOf(TableColumn node)

Whether the declared type of node (a column or a field) lists its fields.

declares

public boolean declares(TableColumn node)

Whether this declaration made the field node node.