org.apache.tapestry5.corelib.components
Class Submit

java.lang.Object
  extended by org.apache.tapestry5.corelib.components.Submit
All Implemented Interfaces:
ClientElement

@SupportsInformalParameters
@Events(value="selected by default, may be overridden")
public class Submit
extends Object
implements ClientElement

Corresponds to <input type="submit"> or <input type="image">, a client-side element that can force the enclosing form to submit. The submit responsible for the form submission will post a notification that allows the application to know that it was the responsible entity. The notification is named "selected" and has no context.

Component Parameters
NameDescriptionTypeFlagsDefaultDefault PrefixSince
contextThe list of values that will be made available to event handler method of this component when the form is submitted.Objectprop5.1.0.0
deferIf true (the default), then any notification sent by the component will be deferred until the end of the form submission (this is usually desirable). In general, this can be left as the default except when the Submit component is rendering inside a org.apache.tapestry5.corelib.components.Loop, in which case defer should be bound to false (otherwise, the event context will always be the final value of the Loop).booleanprop
disabledIf true, then the field will render out with a disabled attribute (to turn off client-side behavior). When the form is submitted, the bound value is evaluated again and, if true, the field's value is ignored (not even validated) and the component's events are not fired.booleanfalseprop
eventThe name of the event that will be triggered if this component is the cause of the form submission. The default is org.apache.tapestry5.EventConstants#SELECTED.StringNot Nullliteral
imageIf provided, the component renders an input tag with type "image". Otherwise "submit".org.apache.tapestry5.Assetasset5.1.0.0
modeDefines the mode, or client-side behavior, for the submit. The default is org.apache.tapestry5.corelib.SubmitMode#NORMAL; clicking the button submits the form with validation. org.apache.tapestry5.corelib.SubmitMode#CANCEL indicates the form should be submitted as a cancel, with no client-side validation. org.apache.tapestry5.corelib.SubmitMode#UNCONDITIONAL bypasses client-side validation, but does not indicate that the form was cancelled.org.apache.tapestry5.corelib.SubmitModeNot Nullliteral5.2.0

Events:

selected
by default, may be overridden
Examples:

The thing to remember is that the Submit component will trigger its "selected" event in the middle of the form submission, before the form triggers its "validate", "success" (or "failure") and "submit" events. Thus the best thing to do is to store in a temporary field what should be done inside the "success" event handler.

EditUser.tml

<html xmlns:t="http://tapestry.apache.org/schema/tapestry_5_0_0.xsd">
    <body>

        <h1>Edit User</h1>

        <t:form>

            <t:errors/>

            <t:beaneditor t:id="user"/>

            <p>
                <input type="submit" value="Update User"/>
                <t:submit t:id="delete" value="Delete User"/>
            </p>

        </t:form>
</html>

EditUser.java

public class EditUser
{
    @Inject
    private UserDAO userDAO;

    @Property
    @Persist
    private User user;

    private boolean deleteUser;

    void onSelectedFromDelete() { deleteUser = true; }

    Object onSuccess()
    {
        if (deleteUser)
            userDAO.delete(user.getId());
        else
            userDAO.update(user);

        return UserList.class;
    }
}

Constructor Summary
Submit()
           
 
Method Summary
 String getClientId()
          Returns the component's client id.
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

Submit

public Submit()
Method Detail

getClientId

public String getClientId()
Returns the component's client id. This must be called after the component has rendered.

Specified by:
getClientId in interface ClientElement
Returns:
client id for the component


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