Examples of org.apache.click.ActionResult

org.apache.click.ActionResult
onAction method must return a ActionResult public ActionResult onAction(Control source) { // Create a new action result containing an HTML snippet and HTML content type ActionResult actionResult = new ActionResult("<span>Hello World</span>", ActionResult.HTML); return actionResult; } }); }
Page Action
A Page Action is a method on a Page that can be invoked directly from the browser. The Page Action method returns an ActionResult instance that is rendered to the browser, thus bypassing the rendering of the Page template.
```
 private ActionLink link = new ActionLink("link"); public void onInit() { link.addControl(link); // A "pageAction" is set as a parameter on the link. The "pageAction" // value is set to the Page method: "renderHelloWorld" link.setParameter(PAGE_ACTION, "renderHelloWorld"); } / * This is a "pageAction" method that will render an HTML response. * * Note the signature of the pageAction: a public, no-argument method * returning a ActionResult instance. */ public ActionResult renderHelloWorld() { ActionResult actionResult = new ActionResult("<span>Hello World</span>", ActionResult.HTML); return actionResult; } 
```
Content Type
The {@link #contentType} of the ActionResult must be set to the appropriate typein order for the client to recognize the response. ActionResult provides constants for some of the common content types, including: {@link #XML text/xml}, {@link #HTML text/html}, {@link #JSON application/json}, {@link #TEXT text/plain}.
For example:
```
 ActionResult actionResult = new ActionResult("alert('hello world');", ActionResult.JAVASCRIPT); ... // content type can also be set through the setContentType method actionResult.setContentType(ActionResult.JAVASCRIPT); ... 
```
More content types can be retrieved through {@link org.apache.click.util.ClickUtils#getMimeType(java.lang.String)}:
```
 // lookup content type for PNG String contentType = ClickUtils.getMimeType("png"); actionResult.setContentType(contentType); 
```

                // Formatted date instance that will be added to the
                String now = format.currentDate("MMM, yyyy dd HH:MM:ss");


                String msg = "AjaxBehavior <tt>onAction()</tt> method invoked at: " + now;
                // Return an action result containing the message
                return new ActionResult(msg, ActionResult.HTML);
            }
        });
    }

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            context.getResponse().setHeader("REDIRECT_URL",redirectUrl);
            return false;


        } else if (performShowMessage) {
            ActionResult result = new ActionResult("You do not have permission "
                + "to access the link.");
            result.render(context);
            return false;
        }


            return true;
    }

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                String msg = "<payload>"
                    + "<msg>XML returned at: </msg>"
                    + "<date>" + now + "</date>"
                    + "</payload>";
                // Return an action result containing the message
                return new ActionResult(msg, ActionResult.XML);
            }
        });
    }

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                // Formatted date instance that will be added to the
                String now = format.currentDate("MMM, yyyy dd HH:MM:ss");


                String msg = "{\"msg\": \"JSON returned at: \", \"date\": \"" + now + "\"}";
                // Return an action result containing the message
                return new ActionResult(msg, ActionResult.JSON);
            }
        });
    }

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        Map actionResultModel = new HashMap();
        actionResultModel.put("customers", customers);
        actionResultModel.put("format", getFormat());


        // Return an action result for the customers.htm template and customers
        ActionResult actionResult = new ActionResult("/ajax/scroller/customers.htm", actionResultModel, ActionResult.HTML);
        return actionResult;
    }

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    // Event Handlers ---------------------------------------------------------


    // A pageAction that handles Ajax requests for a particular customer
    public ActionResult onChangeCustomer() {
        ActionResult actionResult = new ActionResult();


        // Lookup customer based on request parameter 'customerId'
        String customerId = getContext().getRequest().getParameter("customerId");
        Customer customer = customerService.findCustomerByID(customerId);


        // CustomerPanel will render the customer as an HTML snippet
        CustomerPanel customerPanel = new CustomerPanel(this, customer);
        actionResult.setContent(customerPanel.toString());


        // Set content type and character encoding
        actionResult.setCharacterEncoding("UTF-8");
        actionResult.setContentType(ActionResult.HTML);


        return actionResult;
    }

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        save.addBehavior(new DefaultAjaxBehavior() {


            @Override
            public ActionResult onAction(Control source) {
                // Update the form which might contain errors
                return new ActionResult(form.toString(), ActionResult.HTML);
            }
        });


        cancel.addBehavior(new DefaultAjaxBehavior() {


            @Override
            public ActionResult onAction(Control source) {
                // Update the form and ensure errors and values have been cleared
                form.clearValues();
                form.clearErrors();
                return new ActionResult(form.toString(), ActionResult.HTML);
            }
        });


        // NOTE: we add a Behavior to Form so that Click registers the Form as an Ajax target
        // ALSO NOTE: we don't implement the onAction method as the save and cancel Submits

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            @Override
            public ActionResult onAction(Control source) {
                // Return a success response
                // Form data can be saved here
                return new ActionResult("Hello " + nameFld.getValue(), ActionResult.HTML);
            }
        });


        // NOTE: we explicitly register the Form as an Ajax target so that the
        // Fom#onProcess method can be invoked. The save button's Behavior will

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        try {
            ByteArrayOutputStream baos = new ByteArrayOutputStream();
            wb.write(baos);


            String contentTyype = ClickUtils.getMimeType(".xls");
            ActionResult actionResult = new ActionResult(baos.toByteArray(), contentTyype);


            return actionResult;


        } catch (IOException ioe) {
            throw new RuntimeException(ioe);

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        // Lookup the contentType for a PNG image
        String contentType = ClickUtils.getMimeType("png");


        // Return an ActionResult containing the image data
        return new ActionResult(imageData, contentType);
    }

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org.apache.click.examples.page.ajax.AjaxBehaviorPage

org.apache.click.examples.page.ajax.AjaxFallbackPage

org.apache.click.examples.page.ajax.AjaxSecurePage

org.apache.click.examples.page.ajax.compare.JavascriptAjaxDemoPage

org.apache.click.examples.page.ajax.compare.JqueryAjaxDemoPage

org.apache.click.examples.page.ajax.compare.PrototypeAjaxDemoPage

org.apache.click.examples.page.ajax.content.JsonResponsePage

org.apache.click.examples.page.ajax.content.XmlResponsePage

org.apache.click.examples.page.ajax.form.AdvancedFormAjaxPage

org.apache.click.examples.page.ajax.form.SimpleFormAjaxPage

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Examples of org.apache.click.ActionResult

Page Action

Content Type

Related Classes of org.apache.click.ActionResult