Examples of com.vaadin.terminal.StreamVariable

com.vaadin.terminal.StreamVariable
StreamVariable is a special kind of variable whose value is streamed to an {@link OutputStream} provided by the {@link #getOutputStream()} method. E.g.in web terminals {@link StreamVariable} can be used to send large files frombrowsers to the server without consuming large amounts of memory.
Note, writing to the {@link OutputStream} is not synchronized by the terminal(to avoid stalls in other operations when eg. streaming to a slow network service or file system). If UI is changed as a side effect of writing to the output stream, developer must handle synchronization manually.
@author IT Mill Ltd. @version 6.7.1 @since 6.5 @see PaintTarget#addVariable(VariableOwner,String,StreamVariable)

        String uppUri = pathInfo.substring(startOfData);
        String[] parts = uppUri.split("/", 3); // 0 = pid, 1= name, 2 = sec key
        String variableName = parts[1];
        String paintableId = parts[0];


        StreamVariable streamVariable = pidToNameToStreamVariable.get(
                paintableId).get(variableName);
        String secKey = streamVariableToSeckey.get(streamVariable);
        if (secKey.equals(parts[2])) {


            VariableOwner source = getVariableOwner(paintableId);

View Full Code Here

  public void drop(DragAndDropEvent event) {
    WrapperTransferable transferable = (WrapperTransferable) event.getTransferable();
    Html5File[] files = transferable.getFiles();
    if (files != null && files.length > 0) {
      final Html5File file = files[0]; // only support for one file upload at this moment
      file.setStreamVariable(new StreamVariable() {
        
        private static final long serialVersionUID = 1L;
        
        public void streamingStarted(StreamingStartEvent event) {
          uploadStarted(null); // event doesnt matter here

View Full Code Here

        String uppUri = pathInfo.substring(startOfData);
        String[] parts = uppUri.split("/", 3); // 0 = pid, 1= name, 2 = sec key
        String variableName = parts[1];
        String paintableId = parts[0];


        StreamVariable streamVariable = pidToNameToStreamVariable.get(
                paintableId).get(variableName);
        String secKey = streamVariableToSeckey.get(streamVariable);
        if (secKey.equals(parts[2])) {


            VariableOwner source = getVariableOwner(paintableId);

View Full Code Here

  public void drop(DragAndDropEvent event) {
    WrapperTransferable transferable = (WrapperTransferable) event.getTransferable();
    Html5File[] files = transferable.getFiles();
    if (files.length > 0) {
      final Html5File file = files[0]; // only support for one file upload at this moment
      file.setStreamVariable(new StreamVariable() {
        
        private static final long serialVersionUID = 1L;
        
        public void streamingStarted(StreamingStartEvent event) {
          uploadStarted(null); // event doesnt matter here

View Full Code Here

        String uppUri = pathInfo.substring(startOfData);
        String[] parts = uppUri.split("/", 3); // 0 = pid, 1= name, 2 = sec key
        String variableName = parts[1];
        String paintableId = parts[0];


        StreamVariable streamVariable = pidToNameToStreamVariable.get(
                paintableId).get(variableName);
        String secKey = streamVariableToSeckey.get(streamVariable);
        if (secKey.equals(parts[2])) {


            VariableOwner source = getVariableOwner(paintableId);

View Full Code Here

0 1

TOP

Related Classes of com.vaadin.terminal.StreamVariable

com.vaadin.terminal.gwt.server.CommunicationManager

com.vaadin.terminal.gwt.server.PortletCommunicationManager

org.activiti.explorer.ui.custom.UploadComponent

org.apache.ace.webui.vaadin.UploadHelper$ArtifactDropHandler

sk.vrto.web.ui.ImageDropBox

All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.