JSF Primefaces Datatable ActionLink problems -

prerequisites:

• glasfish 3.1
• jsf 2.1
• primefaces 5.2

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user story:

i want implement delete row function on primefaces datatable, delete function has displayed within table.

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implementation:

datatable header

<p:datatable value="#{a.list}" var="var"> 

delete

<p:column headertext="delete">     <p:commandlink value="-" action="#{a.delete(var)}" /> </p:column> 

delete method in bean

public void delete(something sth) {      model.getlist().remove(sth);         } 

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outcome:

when hovering on commandlink showing me uniform resource locator localhost/applicationname/#

eclipse giving me facelet validator warning marker syntax error on expressionlanguage code #{a.delete(var)}

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question:

what missing in order delete row?

solution:

i have changed commandlink jsf (not primefaces) , got error, method shouldnt void, string after changing , returning null works...

public string delete(something sth) {      model.getlist().remove(sth); return null;  }