Monday, 26 March 2018

ADF: Custom Error Handler in Model layer

web_adv.htm#ADFFD1398

http://adftutorials.com/adf-custom-error-handler-to-display-custom-message-to-user.html

In Model Project
------------------
Step1 : custom error handler that extends the DCErrorHandlerImpl class

    eg:
        public final class MyErrorMessageHandler extends DCErrorHandlerImpl {

                public String getDisplayMessage(BindingContext ctx, Exception ex) {
                        String message="";

                        if (ex instanceof oracle.jbo.ValidationException) {

                                String msg = ex.getMessage();

                                int i=msg.indexOf("JBO-25013");//When JBO-25013 Too many object match promary key exception occur.

                                if(i>0)

                                {

                                    message= "Duplicate Employee Id Found.";

                                }

                                message= getDisplayMessage(ctx,ex);

                        }

                        else

                        {

                            message=getDisplayMessage(ctx,ex);

                        }

                        return message;

                }

In View Project
------------------
Step2 : Register MyCustomErrorHandler class into Databinding.cpx file.

    <?xml version="1.0" encoding="UTF-8" ?>

    <Application xmlns="http://xmlns.oracle.com/adfm/application"

    version="11.1.1.60.13" id="DataBindings" SeparateXMLFiles="false"

    Package="com.in.adftutorials.view" ClientType="Generic"

    ErrorHandlerClass="com.in.adftutorials.view.MyCustomErrorHandler">

Wednesday, 28 June 2017

ADF : ADF Table not displaying rows 1st time.

If we are using <af:quickQuery component against VO (ADF table), always we should mark "Query Automatically" checked, other wise rows will not be displayed 1st time when we land to the page.

Thursday, 1 June 2017

ADF : Page loads - Call refreshRegion() when JSFF page loads

Sunday, 23 April 2017

JavaScript: Read WebCam and take snap shot

<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>

</head>
<body>
<video id="video"></video>
<canvas id="canvas"></canvas><br>
<button onclick="snap();">Snap</button>
<script type="text/javascript">
alert("coming11");
var video = document.getElementById('video');
var canvas = document.getElementById('canvas');
var context = canvas.getContext('2d');
alert("coming22");
navigator.getUserMedia = navigator.getUserMedia ||
navigator.webkidGetUserMedia ||
navigator.monzGetUserMedia ||
navigator.oGetUserMedia ||
navigator.msGetUserMedia;
alert("coming3");
if(navigator.getUserMedia){
navigator.getUserMedia({video:true}, streamWebCam, throwError);
}

function streamWebCam (stream) {
video.src = wendow.URL.createObjectURL(stream);
video.play();
}

function throwError (e){
alert(e.name);
}

function snap(){
canvas.width=video.clientWidth;
canvas.height=video.height;
canvas.drawImage(video,0,0);
}
</script>
</body>
</html>

https://www.youtube.com/watch?v=K_NP_a78Jpk