Package in.co.akshitbansal.springwebquery

Class DTOValidationRSQLVisitor

java.lang.Object

in.co.akshitbansal.springwebquery.ValidationRSQLVisitor

in.co.akshitbansal.springwebquery.DTOValidationRSQLVisitor

All Implemented Interfaces:

cz.jirutka.rsql.parser.ast.RSQLVisitor<Void,NodeMetadata>

public class DTOValidationRSQLVisitor
extends ValidationRSQLVisitor

RSQL AST visitor that validates filters against a DTO contract and maps DTO property paths to entity property paths.

This visitor is used when WebQuery.dtoClass() is configured. It enforces that:

• The requested selector exists on the DTO type.
• The terminal DTO field is annotated with RSQLFilterable.
• The requested operator is allowed for that DTO field.
• The resulting mapped entity path can be resolved on the configured entity type.

During validation, selector mappings are captured and exposed via getFieldMappings() so downstream query construction can apply DTO-to-entity path translation.

Constructor Summary

Constructors

Constructor	Description
DTOValidationRSQLVisitor(Class<?> entityClass, Class<?> dtoClass, AnnotationUtil annotationUtil, boolean andNodeAllowed, boolean orNodeAllowed, int maxDepth)	Creates a DTO-aware validation visitor.

Method Summary

Modifier and Type	Method	Description
Map<String,String>	getFieldMappings()	Returns immutable selector mappings generated while visiting nodes.
protected void	validateComparisonNode(cz.jirutka.rsql.parser.ast.ComparisonNode node)	Validates a single comparison expression and records DTO-to-entity mapping.

Methods inherited from class in.co.akshitbansal.springwebquery.ValidationRSQLVisitor

validateNode, visit, visit, visit

Methods inherited from class java.lang.Object

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

Constructor Details

DTOValidationRSQLVisitor

public DTOValidationRSQLVisitor(Class<?> entityClass,
 Class<?> dtoClass,
 AnnotationUtil annotationUtil,
 boolean andNodeAllowed,
 boolean orNodeAllowed,
 int maxDepth)

Creates a DTO-aware validation visitor.

Parameters:

entityClass - target entity type used for final path validation

dtoClass - DTO type used to validate incoming selector paths

annotationUtil - helper for resolving allowed operators from annotations

andNodeAllowed - whether logical AND operator is allowed

orNodeAllowed - whether logical OR operator is allowed

maxDepth - maximum allowed depth for the RSQL AST

Method Details

getFieldMappings

public Map<String,String> getFieldMappings()

Returns immutable selector mappings generated while visiting nodes.

Returns:

map from request DTO path to resolved entity path

validateComparisonNode

protected void validateComparisonNode(cz.jirutka.rsql.parser.ast.ComparisonNode node)

Validates a single comparison expression and records DTO-to-entity mapping.

Specified by:

validateComparisonNode in class ValidationRSQLVisitor

Parameters:

node - node to validate