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sâmbătă, 14 februarie 2015

[OmniFaces utilities (2.0)] Get the currently invoked UI command component

[OmniFaces utilities] The getCurrentCommand() method returns the currently invoked UI command component, or null if there is none, which may happen when the current request is not a postback request at all, or when the view has been changed by for example a successful navigation. If the latter is the case, you'd better invoke this method before navigation.


OmniFaces 2.4OmniFaces 2.0

JSF Page
<h:form id="myFormId">
 <o:outputLabel id="nameLabelId" for="nameId" value="Name"/>
 <h:inputText id="nameId" value="#{}"/>        
 <!-- The UICommand expected to be returned by the Components.getCurrentCommand() -->
 <h:commandButton id="btnId" value="Save" action="#{playerBean.someAction()}"/> 

After the above form is submitted
import org.omnifaces.util.Components;
UICommand command = Components.getCurrentCommand();
System.out.println("Command clientId: " + command.getClientId());

Command clientId: myFormId:btnId

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