Package software.amazon.smithy.rulesengine.language

Class TraversingVisitor<R>

java.lang.Object

software.amazon.smithy.rulesengine.language.syntax.expressions.ExpressionVisitor.Default<Stream<R>>

software.amazon.smithy.rulesengine.language.TraversingVisitor<R>

Type Parameters:

R - the return type.

All Implemented Interfaces:

ExpressionVisitor<Stream<R>>, RuleValueVisitor<Stream<R>>

public class TraversingVisitor<R>
extends ExpressionVisitor.Default<Stream<R>>
implements RuleValueVisitor<Stream<R>>

A visitor for traversing the rules and conditions of a rule-set.

Nested Class Summary

Nested classes/interfaces inherited from interface software.amazon.smithy.rulesengine.language.syntax.expressions.ExpressionVisitor

ExpressionVisitor.Default<R>

Constructor Summary

Constructors

Constructor	Description
TraversingVisitor()

Method Summary

Modifier and Type	Method	Description
Stream<R>	getDefault()
Stream<R>	visitConditions(List<Condition> conditions)	Endpoint visitor method.
Stream<R>	visitEndpoint(Endpoint endpoint)	Endpoint visitor method.
Stream<R>	visitEndpointRule(Endpoint endpoint)	Invoked when reaching an endpoint rule.
Stream<R>	visitErrorRule(Expression error)	Invoked when reaching an error rule.
Stream<R>	visitRuleset(EndpointRuleSet ruleset)	Given an EndpointRuleSet will invoke the visitor methods for each rule.
Stream<R>	visitTreeRule(List<Rule> rules)	Invoked when reaching a tree rule.

Methods inherited from class software.amazon.smithy.rulesengine.language.syntax.expressions.ExpressionVisitor.Default

visitBoolEquals, visitGetAttr, visitIsSet, visitLibraryFunction, visitLiteral, visitNot, visitRef, visitStringEquals

Methods inherited from class java.lang.Object

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

Constructor Details

TraversingVisitor

public TraversingVisitor()

Method Details

visitRuleset

public Stream<R> visitRuleset(EndpointRuleSet ruleset)

Given an EndpointRuleSet will invoke the visitor methods for each rule.

Parameters:

ruleset - the endpoint rule-set to traverse.

Returns:

a stream of values.

getDefault

public Stream<R> getDefault()

Specified by:

getDefault in class ExpressionVisitor.Default<Stream<R>>

visitTreeRule

public Stream<R> visitTreeRule(List<Rule> rules)

Description copied from interface: RuleValueVisitor

Invoked when reaching a tree rule.

Specified by:

visitTreeRule in interface RuleValueVisitor<R>

Parameters:

rules - the sub-rules within a tree rule.

Returns:

the visitor return type.

visitErrorRule

public Stream<R> visitErrorRule(Expression error)

Description copied from interface: RuleValueVisitor

Invoked when reaching an error rule.

Specified by:

visitErrorRule in interface RuleValueVisitor<R>

Parameters:

error - the error expression for the rule.

Returns:

the visitor return type.

visitEndpointRule

public Stream<R> visitEndpointRule(Endpoint endpoint)

Description copied from interface: RuleValueVisitor

Invoked when reaching an endpoint rule.

Specified by:

visitEndpointRule in interface RuleValueVisitor<R>

Parameters:

endpoint - the endpoint of the rule.

Returns:

the visitor return type.

visitEndpoint

public Stream<R> visitEndpoint(Endpoint endpoint)

Endpoint visitor method.

Parameters:

endpoint - the endpoint to visit.

Returns:

a stream of values.

visitConditions

public Stream<R> visitConditions(List<Condition> conditions)

Endpoint visitor method.

Parameters:

conditions - the conditions to visit.

Returns:

a stream of values.