gudusoft.gsqlparser.dlineage.dataflow.model

Class StarLinkNameSet

Object

gudusoft.gsqlparser.dlineage.dataflow.model.StarLinkNameSet

public final class StarLinkNameSet
extends Object

Target star links remembered across the relations of one target column: the links that already have an explicit (non-star) source, so that a star-expanded source of the same column is not added again. A link is found by the target link's folded display, as the analyzer's set of names did; while star links are grouped by identity, a link that has an identifier is found by it, and by the display only where a label is involved.

Internal contract of the lineage analyzer.

Constructor Summary

Constructors

Constructor and Description
StarLinkNameSet()

Method Summary

Modifier and Type	Method and Description
void	add(StarLinkMatcher target) Remembers the target link target.
boolean	contains(Column source, int ordinal) Whether the star link at ordinal of source is a remembered target link.
boolean	contains(StarLinkMatcher target) Whether target is a remembered target link.

Methods inherited from class Object

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

Constructor Detail

StarLinkNameSet

public StarLinkNameSet()

Method Detail

add

public void add(StarLinkMatcher target)

Remembers the target link target.

contains

public boolean contains(Column source,
                        int ordinal)

Whether the star link at ordinal of source is a remembered target link.

contains

public boolean contains(StarLinkMatcher target)

Whether target is a remembered target link.