Pre-requisite: [https://hibernate.atlassian.net/browse/HSEARCH-4574|https://hibernate.atlassian.net/browse/HSEARCH-4574|smart-link]
Useful in complicated schemas, to break cycles in particular.
E.g. the following schema wouldn’t work unless we support {{@ObjectProjection(includeDepth = ...)}}
{noformat}@ProjectionConstructor
public record WishList(
UUID id,
String title,
Boolean restricted,
@ObjectProjection(includeDepth = 1)
List<Product> products
) {}
{noformat}
{noformat}@ProjectionConstructor
public record Product(
UUID id,
String title,
String keywords,
String description,
Integer rating,
LocalDate dateAdded,
LocalDate dateModified,
@ObjectProjection(includeDepth = 1)
WishList wishList
) {
}
{noformat}
{{includePaths}} would be similarly useful:
{noformat}@ProjectionConstructor
public record Product(
UUID id,
String title,
String keywords,
String description,
Integer rating,
LocalDate dateAdded,
LocalDate dateModified,
@ObjectProjection(includePaths = {"title", "products.title"})
WishList wishList
) {
}
{noformat} |
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