RowKeySetAttributeChange calls into model when component is not in context
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Key: TRINIDAD-2112
URL: https://issues.apache.org/jira/browse/TRINIDAD-2112
Project: MyFaces Trinidad
Issue Type: Bug
Affects Versions: 1.2.12-core
Reporter: Prakash Udupa
RowKeySetAttributeChange has this code...
private void _updateRowKeySetInPlace(UIComponent component, String attrName,
RowKeySet newValue)
{
// Check whether the remembered RowKeySet object is in a valid state
(iterable).
try
{
newValue.iterator().hasNext();
}
catch (Exception e)
{
_LOG.warning("FAILED_ROWKEYSETATTRIBUTECHANGE", e.getClass());
return;
}
ValueExpression oldExpression = component.getValueExpression(attrName);
At the point when this is executed, the component is not brought into context,
so the model bindings might be stale. Consequently call to to model objects
from specific implementation of RowKeySet that relies on the component being
brought to context would break. We had one such instance that broke badly in
our app.
The fix is to bring call to newValue.iterator().hasNext(); into
invokeOnComponent() in the same class file, because at this time the component
is in context and all will be well.
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