Menu

#2 element default as a child of field?

open
nobody
None
5
2001-03-28
2001-03-28
lee fellows
No

Hi,

If I understand the maps.qjml file that comes with
osage-1.0pre10,
default values can be declared for fields. But with
default elements
defined, I get an exception:
net.sourceforge.osage.mapping.MappingException: Nested
error: com.jxml.quick.QPE: no match: default.
maps.qjml reads, in part, for element field:
<element name="field">
...
<child element="default" repeating="False"
optional="True" property="defaultMap"/>
</element>

and element default reads:
<element name="default" content="EMPTY">
<targetClass>net.sourceforge.osage.mapping.DefaultMap</targetClass>
<attribute name="value" type="string"
property="value"/>
<attribute name="holder" type="string"
property="holder" />
</element>

In my class map, I have fields defined like
this:
<field name="parent_id" type="integer">
<default value="0"/>
</field>
<field name="top_id" type="integer">
<default value="0"/>
</field>
<field name="path" type="string">
<sql length="255"/>
<default value=""/>
</field>
<field name="dir_name" type="string">
<default value=""/>
</field>

Which, in my novice mind, seems to be acceptable
according
to the maps.qjml. What am I missing?

Thank you.

Lee Fellows

Discussion

  • george w. stewart

    Logged In: YES
    user_id=28717

    Hi Lee,

    "sql" is a required element. btw, you don't need defaults
    for primitive types where the value is equal to the one set
    by construction. e.g., you don't need int = 0. This
    happens with construction of the class.

    Regards, george
    Regards, george

     
  • lee fellows

    lee fellows - 2001-03-29

    Logged In: YES
    user_id=163683

    Hi George,

    Thank you, but I still get the same exception. I added
    the sql element
    to every field element and deleted all the default
    assignments (I think)
    that were unnecessary. But that still leaves defaults for
    string items.

    I suspect I must be missing something, but I do not know
    what. Any
    suggestions?

    Thank you.

    Lee Fellows

     
  • george w. stewart

    Logged In: YES
    user_id=28717

    Hi Lee,

    It's hard to give you much help without the complete class
    map for the problem. Even with this it's difficult because
    the exception is in 3rd party package (quick).

    Did you get the examples to work? There was a default in
    one of the example classes.

    Regards, george

     
  • lee fellows

    lee fellows - 2001-03-30

    Logged In: YES
    user_id=163683

    Hi George,

    Yes, I saw the default field used in the examples. To
    your question:
    yes, the examples seem to work fine. That is why I am
    confused by
    its rejecting my class mappings with default fields. If I
    comment out the
    default fields, then the classes build seemingly fine.

    I have attached the class mappings category.xml and
    categorycomp.xml
    along with my configuration file: airsconf.xml. Any
    feedback is welcome.
    Note that the default fields are commented out in the
    attached files, but
    otherwise remain unmodified from my last attempt to generate
    the classes
    with them in place.

    My last day here is today, so any response will not be of
    value to me
    past the end of business today.

     

Log in to post a comment.

Want the latest updates on software, tech news, and AI?
Get latest updates about software, tech news, and AI from SourceForge directly in your inbox once a month.