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java.lang.Objectjavax.activation.DataHandler
public class DataHandler
Handler for data available in multiple sources and formats.
| Constructor Summary | |
|---|---|
DataHandler(DataSource ds)
Constructor in which the data is read from a data source. |
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DataHandler(Object obj,
String mimeType)
Constructor using a reified object representation. |
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DataHandler(URL url)
Constructor in which the data is read from a URL. |
|
| Method Summary | |
|---|---|
CommandInfo[] |
getAllCommands()
Returns the complete list of commands for this type of data. |
Object |
getBean(CommandInfo cmdInfo)
Returns the instantiated bean using the specified command. |
CommandInfo |
getCommand(String cmdName)
Returns the specified command. |
Object |
getContent()
Returns the data as a reified object. |
String |
getContentType()
Returns the MIME type of the data (with parameters). |
DataSource |
getDataSource()
Returns the data source from which data is read. |
InputStream |
getInputStream()
Returns an input stream from which the data can be read. |
String |
getName()
Returns the name of the data object if created with a DataSource. |
OutputStream |
getOutputStream()
Returns an output stream that can be used to overwrite the underlying data, if the DataSource constructor was used. |
CommandInfo[] |
getPreferredCommands()
Returns the preferred commands for this type of data. |
Object |
getTransferData(DataFlavor flavor)
Returns an object representing the data to be transferred. |
DataFlavor[] |
getTransferDataFlavors()
Returns the data flavors in which this data is available. |
boolean |
isDataFlavorSupported(DataFlavor flavor)
Indicates whether the specified data flavor is supported for this data. |
void |
setCommandMap(CommandMap commandMap)
Sets the command map to be used by this data handler. |
static void |
setDataContentHandlerFactory(DataContentHandlerFactory newFactory)
Sets the data content handler factory. |
void |
writeTo(OutputStream os)
Writes the data as a byte stream. |
| Methods inherited from class java.lang.Object |
|---|
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
| Constructor Detail |
|---|
public DataHandler(DataSource ds)
ds - the data source
public DataHandler(Object obj,
String mimeType)
obj - the object representation of the datamimeType - the MIME type of the objectpublic DataHandler(URL url)
url - the URL| Method Detail |
|---|
public DataSource getDataSource()
public String getName()
public String getContentType()
public InputStream getInputStream()
throws IOException
IOException
public void writeTo(OutputStream os)
throws IOException
os - the stream to write to
IOException
public OutputStream getOutputStream()
throws IOException
IOExceptionpublic DataFlavor[] getTransferDataFlavors()
getTransferDataFlavors in interface Transferablepublic boolean isDataFlavorSupported(DataFlavor flavor)
isDataFlavorSupported in interface Transferableflavor - the data flavor to test
public Object getTransferData(DataFlavor flavor)
throws UnsupportedFlavorException,
IOException
getTransferData in interface Transferableflavor - the requested data flavor
UnsupportedFlavorException - if the flavor is not supported
IOException - if the data is not availableDataFlavor.getRepresentationClass()public void setCommandMap(CommandMap commandMap)
commandMap - the command map to usepublic CommandInfo[] getPreferredCommands()
public CommandInfo[] getAllCommands()
public CommandInfo getCommand(String cmdName)
cmdName - the command name
public Object getContent()
throws IOException
IOExceptionpublic Object getBean(CommandInfo cmdInfo)
cmdInfo - the command to instantiate the bean withpublic static void setDataContentHandlerFactory(DataContentHandlerFactory newFactory)
newFactory - the factory to set
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