I use the projection
<h:column>
<h:outputText value="#{rowObject.(row|row.identifier}" />
</h:column>
This generates the error
aused by javax.el.ELException with message: "Error Parsing: #{rowObject.(row|row.identifier}"
org.jboss.el.lang.ExpressionBuilder.createNodeInternal(ExpressionBuilder.java:130)
org.jboss.el.lang.ExpressionBuilder.build(ExpressionBuilder.java:151)
org.jboss.el.lang.ExpressionBuilder.createValueExpression(ExpressionBuilder.java:195)
org.jboss.el.ExpressionFactoryImpl.createValueExpression(ExpressionFactoryImpl.java:68)
org.jboss.seam.el.SeamExpressionFactory.createValueExpression(SeamExpressionFactory.java:98)
com.sun.facelets.tag.TagAttribute.getValueExpression(TagAttribute.java:256)
com.sun.facelets.tag.jsf.ValueHolderRule$DynamicValueExpressionMetadata.applyMetadata(ValueHolderRule.java:101)
com.sun.facelets.tag.MetadataImpl.applyMetadata(MetadataImpl.java:36)
com.sun.facelets.tag.MetaTagHandler.setAttributes(MetaTagHandler.java:62)
com.sun.facelets.tag.jsf.ComponentHandler.apply(ComponentHandler.java:144)