4.5.4.2.1.1. CreateAction

CreateAction – action with create identifier. It is intended to create new entity instance and open its edit screen. If the edit screen successfully commits a new instance to the database, CreateAction adds this new instance to the table data source and makes it selected.

The following specific methods are defined in the CreateAction class:

  • setOpenType() allows you to specify new entity edit screen open mode. THIS_TAB by default.

    Since it is quite often required to open edit screens in another mode (typically, DIALOG), you can specify an openType attribute with desired value in the action element when using declarative creation of the create action. This eliminates the need to obtain action reference in the controller and set this property programmatically. For example: 

    <table id="usersTable">
  <actions>
      <action id="create" openType="DIALOG"/>

  • setWindowId() allows you to specify the identifier of the entity edit screen. By default, {entity_name}.edit is used, for example sales$Customer.edit.

  • setWindowParams() allows you to set edit screen parameters passed into its init() method.

  • setInitialValues() allows you to set initial values of attributes of the entity being created. It takes a Map object, where keys are attribute names, and values are attribute values. For example: 

    Map<String, Object> values = new HashMap<>();
values.put("type", CarType.PASSENGER);
carCreateAction.setInitialValues(values);

    An example of setInitialValues() usage is also provided in the section of development recipes.

  • afterCommit() is invoked by the action after the new entity has been successfully committed and the edit screen has been closed. This method does not have implementation and can be overridden in inheritors to handle this event.

  • setAfterCommitHandler() allows you to provide a handler which will be called after the new entity has been successfully committed and the edit screen has been closed. This handler can be used instead of overriding afterCommit() to avoid creating the action subclass. For example: 

    @Named("customersTable.create")
private CreateAction customersTableCreate;

@Override
public void init(Map<String, Object> params) {
    customersTableCreate.setAfterCommitHandler(new CreateAction.AfterCommitHandler() {
        @Override
        public void handle(Entity entity) {
            showNotification("Committed", NotificationType.HUMANIZED);
        }
    });
}

  • afterWindowClosed() is the last method invoked by the action after closing the edit screen regardless of whether the new entity has been committed or not. This method does not have implementation and can be overridden in inheritors to handle this event.

  • setAfterWindowClosedHandler() allows you to provide a handler which will be called after closing the edit screen regardless of whether the new entity has been committed or not. This handler can be used instead of overriding afterWindowClosed() to avoid creating the action subclass.

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