HtmlTableRendererBase.encodeInnerHtml() fails when data model returns -1 for
getRowCount()
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Key: MYFACES-1092
URL: http://issues.apache.org/jira/browse/MYFACES-1092
Project: MyFaces
Type: Bug
Components: Implementation
Versions: 1.1.1
Reporter: Craig McClanahan
Per the JSF spec, ResultSetDataModel.getRowCount() returns -1, to avoid the
potential of scrolling through a very large result set to find the number of
rows. This means that components that might be bound to such a result set
(such as the "value" property on an HtmlDataTable component) must take into
account that they might get a -1 back when asking for the row count.
The logic in the encodeInnerHtml() method of HtmlTableRendererBase fails to
account for this possibility in the calculation of the "last" index to be
rendered, and causes zero rows to be printed in a scenario where the table
component is bound directly to a ResultSetDataModel, no matter how many rows
the result set actually returns. For example:
<h:dataTable ... value="#{mybean.rsdm}" var="current" .../>
where the "rsdm" property is a ResultSetDataModel that wraps a ResultSet that
returns a non-zero number of rows. This scenario works correctly with the JSF
RI implementation.
For example apps that illustrate this, check the SQL Browser example in Shale,
or the "UIData" example from the JSF RI's standard demo application.
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