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java.lang.Objectjavax.activation.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 sourcepublic DataHandler(Object obj, String mimeType)
obj
- the object representation of the datamimeType
- the MIME type of the objectpublic DataHandler(URL url)
url
- the URLMethod 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
IOException
public DataFlavor[] getTransferDataFlavors()
getTransferDataFlavors
in interface Transferable
public boolean isDataFlavorSupported(DataFlavor flavor)
isDataFlavorSupported
in interface Transferable
public Object getTransferData(DataFlavor flavor) throws UnsupportedFlavorException, IOException
getTransferData
in interface Transferable
flavor
- the requested data flavor
UnsupportedFlavorException
IOException
public void setCommandMap(CommandMap commandMap)
commandMap
- the command map to usepublic CommandInfo[] getPreferredCommands()
public CommandInfo[] getAllCommands()
public CommandInfo getCommand(String cmdName)
cmdName
- the command namepublic Object getContent() throws IOException
IOException
public 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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