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Posted to dev@tuscany.apache.org by Brian Murray <br...@gmail.com> on 2006/09/28 20:18:45 UTC
Mixed content and isMany()
If a DataObject has mixed content, DataObject.getInstanceProperties() will
include a Property for the Sequence that accounts for that mixed content. I
have verified (on page 87 of the spec) that this is the expected behavior.
Should the Property representing that particular Sequence return isMany() ==
true?
The problem I have is that I had wanted to perform the following check:
currentProperty = (Property) properties.get(i);
if (currentProperty.isMany())
{
List values = dataObject.getList(i);
However, in the case where currentProperty is the "mixed" this will result
in a ClassCastException because org.apache.tuscany.sdo.util.BasicSequence is
incompatible with java.util.List. The exception is thrown in
DataObjectUtil.getList when the cast to List is attempted.
Is it true then that isMany() == true is insufficient to assume that you
will be able to call getList()?
Re: Mixed content and isMany()
Posted by Frank Budinsky <fr...@ca.ibm.com>.
isMany() == true should be sufficient checking before calling getList().
This problem will be fixed by TUSCANY-521.
Frank.
"Brian Murray" <br...@gmail.com> wrote on 09/28/2006 02:18:45
PM:
> If a DataObject has mixed content, DataObject.getInstanceProperties()
will
> include a Property for the Sequence that accounts for that mixed
content. I
> have verified (on page 87 of the spec) that this is the expected
behavior.
>
> Should the Property representing that particular Sequence return
isMany() ==
> true?
>
> The problem I have is that I had wanted to perform the following check:
>
> currentProperty = (Property) properties.get(i);
> if (currentProperty.isMany())
> {
> List values = dataObject.getList(i);
>
> However, in the case where currentProperty is the "mixed" this will
result
> in a ClassCastException because
org.apache.tuscany.sdo.util.BasicSequence is
> incompatible with java.util.List. The exception is thrown in
> DataObjectUtil.getList when the cast to List is attempted.
>
> Is it true then that isMany() == true is insufficient to assume that you
> will be able to call getList()?
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