gudusoft.gsqlparser.pp2.layout.rules

Class SetOperatorRules

Object

gudusoft.gsqlparser.pp2.layout.rules.SetOperatorRules

All Implemented Interfaces:

LayoutRule

public final class SetOperatorRules
extends Object
implements LayoutRule

Lays out set operators vertically: a linebreak before the operator keyword (UNION/INTERSECT/EXCEPT/MINUS) and before the SELECT that follows the operator. So SELECT 1 UNION ALL SELECT 2 becomes:

 SELECT 1
 UNION ALL
 SELECT 2
 

The break goes before the operator's first word only, so a multi-word operator like UNION ALL stays on one line (ALL carries no break). Priority LayoutPriorities.CLAUSE_LINEBREAK. Iterative; read-only over tokens.

Plan reference: §7.3/S25, §7.4/S25.

Constructor Summary

Constructors

Constructor and Description
SetOperatorRules()

Method Summary

Modifier and Type	Method and Description
void	apply(LayoutContext context) Apply the rule, requesting layout decisions on the context.
String	name() Short, stable identifier for logging/diagnostics.
int	priority() The rule's precedence.

Methods inherited from class Object

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

Constructor Detail

SetOperatorRules

public SetOperatorRules()

Method Detail

priority

public int priority()

Description copied from interface: LayoutRule

The rule's precedence. Higher-priority rules win conflicts over lower-priority ones regardless of registration order.

Specified by:

priority in interface LayoutRule

name

public String name()

Description copied from interface: LayoutRule

Short, stable identifier for logging/diagnostics.

Specified by:

name in interface LayoutRule

apply

public void apply(LayoutContext context)

Description copied from interface: LayoutRule

Apply the rule, requesting layout decisions on the context.

Specified by:

apply in interface LayoutRule