s:graphicImage in rich:extendedDataTable - using byte array datasource results
in wrong drawing
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Key: JBSEAM-4672
URL: https://jira.jboss.org/browse/JBSEAM-4672
Project: Seam
Issue Type: Bug
Components: JSF Controls
Affects Versions: 2.2.0.GA
Environment: JDK 1.6.0 Update 18, Windows XP SP3, JBoss 4.2.2.GA,
Oracle 10g express,
Reporter: Helge Mahrt
I am using the s:graphicImage in a rich:column within a rich:extendedDataTable:
<rich:extendedDataTable id="languageDataTable" value="#{dtoList}" var="item" >
<rich:column sortable="false">
<s:graphicImage value="#{item.imageData}"/>
[...]
</rich:column>
</rich:extendedDataTable>
imageData is a byte array which is bound to a BLOB in the database. Not all
objects in the database have an image, in fact most have null in the image
field.
After encountering the first row, where the object behind does have an image,
s:graphicImage keeps drawing this very image in every subsequent row, until it
encounters another object with the image set. Per default imageData returned a
byte array of 0 size when there is no image in the database. I tried replacing
that value by null, but the behaviour did not change.
There are no errors or execeptions showing up. I think s:imageData, when using
byte arrays as source, is not properly reacting to invalid/null image data.
As a work-around I used the rendered attribute to hide the s:graphicImage
control when there is no image data.
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