JPA Method
in jakarta.persistence.Graph

Subgraph<E> addElementSubgraph(
  PluralAttribute<?superT,?,E> attribute
)


Add a node to the graph that corresponds to a collection element that is a managed type. This allows for construction of multi-node entity graphs that include related managed types.
Parameters:
attribute - attribute
Return:
subgraph for the element attribute
Throws:
IllegalArgumentException - if the attribute's target type is not an entity
IllegalStateException - if this EntityGraph has been statically defined
Since:
JPA 3.2