Message Title

Starting in Hibernate ORM 6.2, polymorphic associations using @Any raise MappingException}}s if either the key or discriminator column is mapped to another (mutable) attribute in the owning entity. This prevents read-only {{@Any associations in which the duplicated column mappings cannot be defined with @Column(insertable=false, updatable=false)

package org.hibernate.mapping;

...

public class Any extends SimpleValue {
  
  ... 
   
  public void setDiscriminator(BasicValue discriminatorDescriptor) {
	this.discriminatorDescriptor = discriminatorDescriptor;
	if ( discriminatorDescriptor.getColumn() instanceof Column ) {
		// Current: justAddColumn( (Column) discriminatorDescriptor.getColumn() );
		justAddColumn(
			(Column) discriminatorDescriptor.getColumn(),
			// Pass insertable/updatable from discriminatorDescriptor
			discriminatorDescriptor.isColumnInsertable(0),
			discriminatorDescriptor.isColumnUpdateable(0)
		);
	}
	else {
		justAddFormula( (Formula) discriminatorDescriptor.getColumn() );
	}
  }
  
  ...
  
  public void setKey(BasicValue keyDescriptor) {
	this.keyDescriptor = keyDescriptor;
	if ( keyDescriptor.getColumn() instanceof Column ) {
		// Current: justAddColumn( (Column) keyDescriptor.getColumn() );
		justAddColumn(
			(Column) keyDescriptor.getColumn(),
			// Pass insertable/updatable from keyDescriptor
			keyDescriptor.isColumnInsertable(0),
			keyDescriptor.isColumnUpdateable(0)
		);
	}
	else {
		justAddFormula( (Formula) keyDescriptor.getColumn() );
	}
  }
}