castor

Exception with same type collections and location= [TESTCASE]

Details

  • Type: Bug Bug
  • Status: Open Open
  • Priority: Critical Critical
  • Resolution: Unresolved
  • Affects Version/s: 0.9.5
  • Fix Version/s: None
  • Component/s: XML
  • Labels:
    None
  • Environment:
    Operating System: All
    Platform: PC
  • Bugzilla Id:
    1337
  • Number of attachments :
    0

Description

I have attached a testcode which demonstrates the problem. The testcase model
is as follows: A RuleBase has a collection of Rules, and each Rule has a
collection of AllowHosts and DenyHosts (both of type Host).

Castor marshalls the objects correctly but throws a SAXException when parsing
the XML it generated. I think this is due to the fact that both collections are
the same type, if you comment out the DenyHosts field definition then it works.

I have tried to fix this but I'm not very familiar with the Castor code.

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dummy002 added a comment -

Created an attachment (id=297)
Test case

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dummy002 added a comment - Created an attachment (id=297) Test case
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dummy002 added a comment -

It seems Castors state is getting confused by identically named elements. If
you replace the mappings for the AllowHosts and DenyHosts with these then it works:

<field name="AllowHosts" type="Host" collection="collection">
<bind-xml name="allow" location="allows"/>
</field>

<field name="DenyHosts" type="Host" collection="collection">
<bind-xml name="deny" location="denys"/>
</field>

However this doesn't work:

<field name="AllowHosts" type="Host" collection="collection">
<bind-xml name="allow" location="allow"/>
</field>

<field name="DenyHosts" type="Host" collection="collection">
<bind-xml name="deny" location="deny"/>
</field>

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dummy002 added a comment - It seems Castors state is getting confused by identically named elements. If you replace the mappings for the AllowHosts and DenyHosts with these then it works: <field name="AllowHosts" type="Host" collection="collection"> <bind-xml name="allow" location="allows"/> </field> <field name="DenyHosts" type="Host" collection="collection"> <bind-xml name="deny" location="denys"/> </field> However this doesn't work: <field name="AllowHosts" type="Host" collection="collection"> <bind-xml name="allow" location="allow"/> </field> <field name="DenyHosts" type="Host" collection="collection"> <bind-xml name="deny" location="deny"/> </field>
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Keith Visco added a comment -

Hi Niall,

I look into the issues. However a quick note. If you want your collections to be
wrapped in an element name, you can also try the container="false" trick:

<field name="AllowHosts" type="Host" collection="collection" container="false">
<bind-xml name="allow/>
</field>

<field name="DenyHosts" type="Host" collection="collection" container="false">
<bind-xml name="deny"/>
</field>

Show
Keith Visco added a comment - Hi Niall, I look into the issues. However a quick note. If you want your collections to be wrapped in an element name, you can also try the container="false" trick: <field name="AllowHosts" type="Host" collection="collection" container="false"> <bind-xml name="allow/> </field> <field name="DenyHosts" type="Host" collection="collection" container="false"> <bind-xml name="deny"/> </field>
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Denis Howlett added a comment -

I've also just come up against this problem. I have some XML of the form:

<KnowledgeBase>
<obj id="obj1">
<parents>
<objLink id="obj0"/>
</parents>
<children>
<objLink id="obj2"/>
<objLink id="obj3"/>
</children>
</obj>
...
</KnowledgeBase>

So there are two elements that contain objLinks. I wanted to map these to
appropriate fields using the location attribute. If I have one or the other it
works, but if I have both, then I get:

SAXException: unable to add 'ObjLink' to <KnowledgeBase> due to the following
exception: java.lang.IllegalArgumentException: object is not an instance of
declaring class.

My field definitions are both of the form:

<field name="parents"
type="testing.castorTest.ObjLink"
collection="arraylist">
<bind-xml name="ObjLink" location="Parents"/>
</field>

I've tried putting container="false" but that gives a different error about not
having a field called "ObjLink". I can send sample code if that's useful.

Show
Denis Howlett added a comment - I've also just come up against this problem. I have some XML of the form: <KnowledgeBase> <obj id="obj1"> <parents> <objLink id="obj0"/> </parents> <children> <objLink id="obj2"/> <objLink id="obj3"/> </children> </obj> ... </KnowledgeBase> So there are two elements that contain objLinks. I wanted to map these to appropriate fields using the location attribute. If I have one or the other it works, but if I have both, then I get: SAXException: unable to add 'ObjLink' to <KnowledgeBase> due to the following exception: java.lang.IllegalArgumentException: object is not an instance of declaring class. My field definitions are both of the form: <field name="parents" type="testing.castorTest.ObjLink" collection="arraylist"> <bind-xml name="ObjLink" location="Parents"/> </field> I've tried putting container="false" but that gives a different error about not having a field called "ObjLink". I can send sample code if that's useful.
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Keith Visco added a comment -

Denis, the bind-xml name and location are case-sensitive, you should change it
to:

<bind-xml name="objLink" location="parents"/>

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Keith Visco added a comment - Denis, the bind-xml name and location are case-sensitive, you should change it to: <bind-xml name="objLink" location="parents"/>

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  • Assignee:
    Unassigned
    Reporter:
    dummy002
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  • Created:
    Updated: