gudusoft.gsqlparser.ir.semantic.joinanalysis

Enum SemanticJoinType

Object

Enum<SemanticJoinType>

gudusoft.gsqlparser.ir.semantic.joinanalysis.SemanticJoinType

All Implemented Interfaces:

Serializable, Comparable<SemanticJoinType>

public enum SemanticJoinType
extends Enum<SemanticJoinType>

Join classification surfaced on a JoinEntity. This is the semantic join taxonomy consumed by SQLFlow's join-analysis endpoint; it is intentionally independent of the parser's EJoinType so the public contract is stable across dialects.

IMPLICIT_CROSS models an admitted comma-FROM cross product (i.e. FROM a, b) — see JoinSourceSyntax.COMMA. UNSUPPORTED is reserved for join shapes the semantic builder rejects today (e.g. CROSS APPLY); it is surfaced explicitly rather than guessed.

Introduced by join-analysis slice 162 (S1); the EJoinType mapping is confirmed and recorded in slice 167 (S6).

Enum Constant Summary

Enum Constants

Enum Constant and Description
CROSS
FULL
IMPLICIT_CROSS
INNER
LEFT
NATURAL
RIGHT
UNSUPPORTED

Method Summary

Modifier and Type	Method and Description
static SemanticJoinType	valueOf(String name) Returns the enum constant of this type with the specified name.
static SemanticJoinType[]	values() Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited from class Enum

clone, compareTo, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Detail

INNER

public static final SemanticJoinType INNER

LEFT

public static final SemanticJoinType LEFT

RIGHT

public static final SemanticJoinType RIGHT

FULL

public static final SemanticJoinType FULL

CROSS

public static final SemanticJoinType CROSS

NATURAL

public static final SemanticJoinType NATURAL

IMPLICIT_CROSS

public static final SemanticJoinType IMPLICIT_CROSS

UNSUPPORTED

public static final SemanticJoinType UNSUPPORTED

Method Detail

values

public static SemanticJoinType[] values()

Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:

for (SemanticJoinType c : SemanticJoinType.values())
    System.out.println(c);

Returns:

an array containing the constants of this enum type, in the order they are declared

valueOf

public static SemanticJoinType valueOf(String name)

Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)

Parameters:

name - the name of the enum constant to be returned.

Returns:

the enum constant with the specified name

Throws:

IllegalArgumentException - if this enum type has no constant with the specified name

NullPointerException - if the argument is null