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javax.activation
public interface: DataContentHandler [javadoc | source]

All Known Implementing Classes:
    ObjectDataContentHandler, DataSourceDataContentHandler

The DataContentHandler interface is implemented by objects that can be used to extend the capabilities of the DataHandler's implementation of the Transferable interface. Through DataContentHandlers the framework can be extended to convert streams in to objects, and to write objects to streams.

Applications don't generally call the methods in DataContentHandlers directly. Instead, an application calls the equivalent methods in DataHandler. The DataHandler will attempt to find an appropriate DataContentHandler that corresponds to its MIME type using the current DataContentHandlerFactory. The DataHandler then calls through to the methods in the DataContentHandler.

Method from javax.activation.DataContentHandler Summary:
getContent,   getTransferData,   getTransferDataFlavors,   writeTo
Method from javax.activation.DataContentHandler Detail:
 public Object getContent(DataSource ds) throws IOException
    Return an object representing the data in its most preferred form. Generally this will be the form described by the first DataFlavor returned by the getTransferDataFlavors method.
 public Object getTransferData(DataFlavor df,
    DataSource ds) throws UnsupportedFlavorException, IOException
    Returns an object which represents the data to be transferred. The class of the object returned is defined by the representation class of the flavor.
 public DataFlavor[] getTransferDataFlavors()
    Returns an array of DataFlavor objects indicating the flavors the data can be provided in. The array should be ordered according to preference for providing the data (from most richly descriptive to least descriptive).
 public  void writeTo(Object obj,
    String mimeType,
    OutputStream os) throws IOException
    Convert the object to a byte stream of the specified MIME type and write it to the output stream.