gudusoft.gsqlparser.ir.semantic.joinanalysis

Class JoinAnalysisFacts

Object

gudusoft.gsqlparser.ir.semantic.joinanalysis.JoinAnalysisFacts

public final class JoinAnalysisFacts
extends Object

Single optional carrier added to StatementGraph for the join-analysis facts (GAPs 1/2/4): the structured JoinGraph, the WHERE/filter Predicate list, and the QueryBlockScope. Using one carrier slot (rather than one slot per GAP) keeps StatementGraph's constructor count from growing further.

EMPTY is the default for every existing StatementGraph constructor — an empty join graph, no filter predicates, and a null scope — so adding this carrier is fully additive and the legacy flat accessors are unaffected.

Immutable. Introduced by join-analysis slice 162 (S1); wired into StatementGraph in slice 167 (S6).

Field Summary

Fields

Modifier and Type	Field and Description
static JoinAnalysisFacts	EMPTY Shared empty carrier; the default for legacy constructors.

Constructor Summary

Constructors

Constructor and Description
JoinAnalysisFacts(JoinGraph joinGraph, List<Predicate> filterPredicates, QueryBlockScope queryBlockScope)

Method Summary

Modifier and Type	Method and Description
boolean	equals(Object o)
List<Predicate>	getFilterPredicates() Never null; empty when the WHERE clause is absent / not modelled.
JoinGraph	getJoinGraph() Never null; JoinGraph.EMPTY when absent.
QueryBlockScope	getQueryBlockScope() Optional; null until scope is populated (slice 170).
int	hashCode()
boolean	isEmpty()
String	toString()
JoinAnalysisFacts	withFilterPredicates(List<Predicate> newFilters) Copy with a replaced filter-predicate list.
JoinAnalysisFacts	withJoinGraph(JoinGraph newGraph) Copy with a replaced join graph.
JoinAnalysisFacts	withQueryBlockScope(QueryBlockScope newScope) Copy with a replaced query-block scope.

Methods inherited from class Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

EMPTY

public static final JoinAnalysisFacts EMPTY

Shared empty carrier; the default for legacy constructors.

Constructor Detail

JoinAnalysisFacts

public JoinAnalysisFacts(JoinGraph joinGraph,
                         List<Predicate> filterPredicates,
                         QueryBlockScope queryBlockScope)

Method Detail

getJoinGraph

public JoinGraph getJoinGraph()

Never null; JoinGraph.EMPTY when absent.

getFilterPredicates

public List<Predicate> getFilterPredicates()

Never null; empty when the WHERE clause is absent / not modelled.

getQueryBlockScope

public QueryBlockScope getQueryBlockScope()

Optional; null until scope is populated (slice 170).

isEmpty

public boolean isEmpty()

withJoinGraph

public JoinAnalysisFacts withJoinGraph(JoinGraph newGraph)

Copy with a replaced join graph.

withFilterPredicates

public JoinAnalysisFacts withFilterPredicates(List<Predicate> newFilters)

Copy with a replaced filter-predicate list.

withQueryBlockScope

public JoinAnalysisFacts withQueryBlockScope(QueryBlockScope newScope)

Copy with a replaced query-block scope.

equals

public boolean equals(Object o)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

toString

public String toString()

Overrides:

toString in class Object