As stated in the sections “Ajax Life Cycle” in Chapter 3 and “Ajaxifying Components” in Chapter 4, the execute and render attributes of <f:ajax> tag take a space-separated collection of so-called component search expressions .
The search expressions have always been part of JSF (JavaServer Faces) since the beginning as this is used in the for attribute of <h:outputLabel>, <h:message>, and <h:messages>, but they have only become essential knowledge for the JSF developer since the introduction ...
