gudusoft.gsqlparser.pp2.layout

Class LayoutRulePipeline

Object

gudusoft.gsqlparser.pp2.layout.LayoutRulePipeline

public final class LayoutRulePipeline
extends Object

Ordered collection of LayoutRules applied in sequence to a LayoutContext.

Each rule is applied in registration order; before invoking a rule the pipeline sets the context's active priority to that rule's LayoutRule.priority(), so the rule's requested writes are mediated by the LayoutConflictResolver. A rule that throws is logged and skipped (the pipeline never propagates a rule failure — fault tolerance), and later rules still run.

With zero registered rules, run(LayoutContext) leaves every LayoutDecision LayoutDecision.UNSET — the identity pass.

Plan reference: §7.3/S23, §7.4/S23.

Constructor Summary

Constructors

Constructor and Description
LayoutRulePipeline()

Method Summary

Modifier and Type	Method and Description
List<LayoutRule>	getRules() Read-only view of the registered rules, in registration order.
LayoutRulePipeline	register(LayoutRule rule) Register a rule.
LayoutContext	run(LayoutContext context) Apply every registered rule to context, in order.

Methods inherited from class Object

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

Constructor Detail

LayoutRulePipeline

public LayoutRulePipeline()

Method Detail

register

public LayoutRulePipeline register(LayoutRule rule)

Register a rule. Returns this for chaining.

getRules

public List<LayoutRule> getRules()

Read-only view of the registered rules, in registration order.

run

public LayoutContext run(LayoutContext context)

Apply every registered rule to context, in order. Never throws for a non-null context; a rule that throws is logged and skipped.

Parameters:

context - the layout context; must not be null

Returns:

the same context, with decisions populated

Throws:

NullPointerException - if context is null