gudusoft.gsqlparser.ir.semantic.joinanalysis

Enum JoinEndpointKind

Object

Enum<JoinEndpointKind>

gudusoft.gsqlparser.ir.semantic.joinanalysis.JoinEndpointKind

All Implemented Interfaces:

Serializable, Comparable<JoinEndpointKind>

public enum JoinEndpointKind
extends Enum<JoinEndpointKind>

Discriminator for a JoinEndpoint.

• RELATION — a single FROM-clause relation (a base table, CTE, or derived table), identified by its alias and qualified name.
• JOIN_RESULT — the accumulated result of prior joins in a left-deep chain, identified by the order of the join that produced it and the aliases it contributes.

Introduced by join-analysis slice 162 (S1).

Enum Constant Summary

Enum Constants

Enum Constant and Description
JOIN_RESULT
RELATION

Method Summary

Modifier and Type	Method and Description
static JoinEndpointKind	valueOf(String name) Returns the enum constant of this type with the specified name.
static JoinEndpointKind[]	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

RELATION

public static final JoinEndpointKind RELATION

JOIN_RESULT

public static final JoinEndpointKind JOIN_RESULT

Method Detail

values

public static JoinEndpointKind[] 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 (JoinEndpointKind c : JoinEndpointKind.values())
    System.out.println(c);

Returns:

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

valueOf

public static JoinEndpointKind 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