Composite Component Architecture in Oracle JET

This document provides a step-by-step set of instructions guiding you through the process of creating Composite Components with the Oracle JavaScript Extension Toolkit (JET). JET empowers web and mobile developers by providing a modular toolkit based on modern JavaScript, CSS3, and HTML5 design and development principles.

Setting Up an Oracle JET Application

In this exercise you set up an Oracle JET application and explore its default content.

  1. Follow the steps described in Setting Up an Oracle JET Application.

  2. Open the project into an editor or IDE of your choice, such as NetBeans IDE, which displays the application as follows:

Spend some time browsing through the application structure. In the next section, you'll be introduced to the main concepts of the application structure.

Creating a CCA Component

In this exercise, you create your first CCA component, which is Oracle's implementation of the W3C Web Component Standard.

  1. In src/js create a folder named jet-composites or any other name. In that folder, create another folder, named customer. In the customer folder, create the three files you see below, that is, customer.html, customer.json and loader.js, shown below:

  2. In customer.html, paste the below:

    <b data-bind="text: $props.name"></b>
    <i data-bind="text: $props.city"></i>
    <hr>
  3. In customer.json, paste the below:

    {
      "properties": {
        "name": {
          "description": "Customer name.",
          "type": "string"
        },
        "city": {
          "description": "Customer location.",
          "type": "string"
        }
      }
    }
  4. In loader.js, paste the below:

    define(['ojs/ojcore', 
        'text!./customer.html', 
        'text!./customer.json', 
        'ojs/ojcomposite'],
      function(oj, view, metadata) {
        oj.Composite.register('my-customer', {
          view: {inline: view}, 
          metadata: {inline: JSON.parse(metadata)}
        });
      }
    );

    When you name your CCA component, such as my-customer above, see this information and validate your name here.

You have now created a simple CCA component, providing the my-customer custom element.

Using a CCA Component

In this exercise, you use the CCA component you created in the previous section.

  1. In the HTML file of one or more of your Oracle JET modules, use the CCA component as follows:

    <!-- ko foreach: customers -->
      <my-customer name="{{name}}" city="{{city}}"></my-customer>
    <!-- /ko -->

    Read more about Knockout for-each loops here: http://knockoutjs.com/documentation/foreach-binding.html.

  2. In the previous step, there's an assumption that an array named customers exists. Add it to the JavaScript file in the Oracle JET module:

    self.customers = [
        {name: 'Bill Bob Thornton', city: 'New York'},
        {name: 'Brad Pitt', city: 'Hollywood'},
        {name: 'Val Kilmer', city: 'Seattle'}
    ];
  3. In the define block, load the following, at the end of the list of references:

    'ojs/ojcomposite', 'jet-composites/customer/loader'
  4. Look in the browser and you should see the following:

Next Steps

Read the related Oracle JET Cookbook section in detail and include another CCA component from there.

Also read Creating Composite Components in the Oracle JET Developer Guide.

Congratulations! You have now learned how to create and load CCA components in your Oracle JET applications.



See Also

For more information about support for Oracle JET and a variety of HTML5 applications in the IDE on netbeans.org, see the following resources:

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