com.vaadin.flow.server.streams.AbstractDownloadHandler<R>

Type Parameters:: R - the type of the subclass implementing this abstract class

All Implemented Interfaces:: DownloadHandler, ElementRequestHandler, Serializable

Direct Known Subclasses:: ClassDownloadHandler, FileDownloadHandler, InputStreamDownloadHandler, ServletResourceDownloadHandler

public abstract class AbstractDownloadHandler<R extends AbstractDownloadHandler> extends TransferProgressAwareHandler<DownloadEvent,R> implements DownloadHandler

Abstract class for common methods used in pre-made download handlers.

Since:

24.8

See Also:

Constructor Details
- AbstractDownloadHandler
  
  public AbstractDownloadHandler()
Method Details
- getTransferContext
  
  protected TransferContext getTransferContext(DownloadEvent transferEvent)
  
  Description copied from class: TransferProgressAwareHandler
  
  This method is used to get the transfer context from the transfer events (e.g. DownloadEvent).
  
  Specified by:
  
  getTransferContext in class TransferProgressAwareHandler<DownloadEvent,R extends AbstractDownloadHandler>
  
  Parameters:
  
  transferEvent - the transfer event
  
  Returns:
  
  the transfer context
- getContentType
  
  protected String getContentType(String fileName, VaadinResponse response)
- inline
  
  public R inline()
  
  Sets this download content to be displayed inside the Web page, or as the Web page, e.g. as an image or inside an iframe.
  Implementations of this class should ensure that the 'Content-Disposition' attribute is 'inline', if this method is called.
  
  Returns:
  
  this instance for method chaining
- isInline
  
  public boolean isInline()
  
  Returns if the download content to be displayed inside the Web page or downloaded as a file.
  
  Returns:
  
  true if the content is to be displayed inline, false if it is to be downloaded as a file

Class AbstractDownloadHandler<R extends AbstractDownloadHandler>

Constructor Summary