Hibernate loads lazy objects without asking

To keep the transferred data small, I created two objects for my files in the database. The file manager should contain some general information about files and the blob file, including fileId and blob. Often I only need to specify common file transformations. If now I ask for a list of file managers, hibernate unfortunately also selects the blob file (each in one select). So here's my example:

Excerpt from Fileh.class:

  @OneToOne(mappedBy = "fileh", targetEntity = Fileblob.class, fetch = FetchType.LAZY)
  @org.hibernate.annotations.Cascade({ org.hibernate.annotations.CascadeType.SAVE_UPDATE, org.hibernate.annotations.CascadeType.LOCK })
  private Fileblob fileblob;

      

        
        
        
      

    

Excerpt from selection:

  Criteria createCriteria = persistentSession.createCriteria(Fileh.class);

  List list = createCriteria.list();

      

        
        
        
      

    

ConsoleLog:

Hibernate: 
    select
        this_.`ID` as ID1_78_0_,
        this_.`CHDATE` as CHDATE2_78_0_,
        this_.`CHUSER` as CHUSER9_78_0_,
        this_.`CRDATE` as CRDATE3_78_0_,
        this_.`CRUSER` as CRUSER10_78_0_,
        this_.`EXTENSION` as EXTENSIO4_78_0_,
        this_.`NAME` as NAME5_78_0_,
        this_.`SIZE` as SIZE6_78_0_,
        this_.`VALID_FROM` as VALID_FR7_78_0_,
        this_.`VALID_TO` as VALID_TO8_78_0_ 
    from
        CORE.`FILEH` this_
Hibernate: 
    select
        fileblob0_.`ID` as ID1_77_0_,
        fileblob0_.`FILEBLOB` as FILEBLOB2_77_0_ 
    from
        CORE.`FILEBLOB` fileblob0_ 
    where
        fileblob0_.`ID`=?
Hibernate: 
    select
        fileblob0_.`ID` as ID1_77_0_,
        fileblob0_.`FILEBLOB` as FILEBLOB2_77_0_ 
    from
        CORE.`FILEBLOB` fileblob0_ 
    where
        fileblob0_.`ID`=? .....(and so on)

      

        
        
        
      

    

Am I wrong in my assumption that fetch = FetchType.LAZY should be sufficient for my purpose ?

Thanks in advance for hints and suggestions. I just think that I am barking the wrong tree ...

Regards, Vincent

Change: . Diving into the hibernate source code began. In DefaultLoadEventListener.proxyOrLoad(...)

hibernate decides whether the weather is loaded as a proxy or not. In my example, the following option is passed: LoadEventListener.INTERNAL_LOAD_NULLABLE

which results in access to the database. I just don't understand why else ...

Edit2: Problem solved: added optional = false

in OneToOne-abstract:

@OneToOne(mappedBy = "fileh", targetEntity = Fileblob.class, fetch = FetchType.LAZY, optional = false)
  @org.hibernate.annotations.Cascade({ org.hibernate.annotations.CascadeType.SAVE_UPDATE, org.hibernate.annotations.CascadeType.LOCK })
  private Fileblob fileblob;