java - About a checkbox on datatable -

i want use checkbox on datatable :

 <h:selectbooleancheckbox styleclass="selectbooleancheckbox" valuechangelistener="#{completedinventoriesbean.changeuid}" value="#{completedinventoriesbean.ischecked(userinventorieswithuser.id)}" id="chkuser">            <f:ajax event="change" process="chkuser"></f:ajax> </h:selectbooleancheckbox> 

my uids on session. , want user clicks checkbox , adding or removing ids on session.

there no problem, handle values on session beans.

but during click on checkboxes, javascript alert below:

servererror: class javax.faces.component.updatemodelexcepton/sections/completed.xhtml @29,244 value="#{completedinventoriesbean.ischecked(userinventorieswithuser.id)}": property 'ischecked' not found on type main.com.brad.services.completedinventoriesbean

my ischecked method :

public boolean ischecked(int z) {     boolean exist = false;     for(int i=0; < selectedsessionui.getsessioninventories().size(); i++) {         if (selectedsessionui.getsessioninventories().get(i) == z) exist = true;     }     return exist; } 

why alert? think stucked in page.

thanks in advance

you can't bind value attribute method taking arguments. should bound property represented pure getter , setter.

in particular case, you'd rather use map<long, boolean> instead.

private map<long, boolean> checked = new hashmap<long, boolean>();  @postconstruct public void init() {     (int id : selectedsessionui.getsessioninventories()) {         checked.put(long.valueof(id), true);     } }  public map<long, boolean> getchecked() {     return checked; } 

in combination with

<h:selectbooleancheckbox value="#{completedinventoriesbean.checked[userinventorieswithuser.id]}"> 

to collect checked rows, loop through checked map in action method.

(no setter required since [] use put() , get() on map itself)