I have written a wrapper component that in certain conditions overrides some attributes of its children.
In the INVOKE_APPLICATION phase (after an event), it calls UIComponent#setValueExpression on child components :
FacesContext ctx = FacesContext.getCurrentInstance();
ELContext eLContext = ctx.getELContext();
ExpressionFactory factory = ctx.getApplication().getExpressionFactory();
String newModelExpression = "#{newExpression}";
ValueExpression exp = factory.createValueExpression(eLContext, newModelExpression, Object.class);
((UIComponent) child).setValueExpression("model", exp);
Everything is fine except with composite-component as child.
With composite-component, the value expression is reset in the RENDER_RESPONSE phase and the initial expression is evaluated.
This happens in CompositeComponentTagHandler$CompositeComponentRule$CompositeExpressionMetadata#applyMetaData.
Is there a workaround for that ?
I’m using Payara with jsf-impl Mojarra 2.2.12
