<p:commandButton value="Reopen" actionListener="#{searchActions.setOrderStatus(order, 'open')}" disabled="#{!searchActions.hasOrderStatus(order, 'open')}" ajax="false" />

public class Order implements IOrder
{
    ...
}


public class SearchActions
{
    public void setOrderStatus( IOrder order, String statusString ) throws IOException
    {
        ...
    }

    public boolean hasOrderStatus( IOrder order, String statusString ) throws IOException
    {
        ...
    }
}