Module jakarta.activation

Package jakarta.activation

Class DataSourceDataContentHandler

java.lang.Object

jakarta.activation.DataSourceDataContentHandler

All Implemented Interfaces:

DataContentHandler

class DataSourceDataContentHandler
extends Object
implements DataContentHandler

Field Summary

Fields

Modifier and Type	Field	Description
private DataContentHandler	dch
private DataSource	ds
private ActivationDataFlavor[]	transferFlavors

Constructor Summary

Constructors

Constructor	Description
DataSourceDataContentHandler(DataContentHandler dch, DataSource ds)	The constructor.

Method Summary

Modifier and Type	Method	Description
Object	getContent(DataSource ds)	Return an object representing the data in its most preferred form.
Object	getTransferData(ActivationDataFlavor df, DataSource ds)	Return the Transfer Data of type ActivationDataFlavor from InputStream.
ActivationDataFlavor[]	getTransferDataFlavors()	Return the ActivationDataFlavors for this DataContentHandler.
void	writeTo(Object obj, String mimeType, OutputStream os)	Write the object to the output stream.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

ds

private DataSource ds

transferFlavors

private ActivationDataFlavor[] transferFlavors

dch

private DataContentHandler dch

Constructor Details

DataSourceDataContentHandler

public DataSourceDataContentHandler(DataContentHandler dch,
 DataSource ds)

The constructor.

Method Details

getTransferDataFlavors

public ActivationDataFlavor[] getTransferDataFlavors()

Return the ActivationDataFlavors for this DataContentHandler.

Specified by:

getTransferDataFlavors in interface DataContentHandler

Returns:

the ActivationDataFlavors

getTransferData

public Object getTransferData(ActivationDataFlavor df,
 DataSource ds)
                       throws IOException

Return the Transfer Data of type ActivationDataFlavor from InputStream.

Specified by:

getTransferData in interface DataContentHandler

Parameters:

df - the ActivationDataFlavor

ds - the DataSource

Returns:

the constructed Object

Throws:

IOException - if the handler doesn't support the requested flavor

IOException - if the data can't be accessed

getContent

public Object getContent(DataSource ds)
                  throws IOException

Description copied from interface: DataContentHandler

Return an object representing the data in its most preferred form. Generally this will be the form described by the first ActivationDataFlavor returned by the getTransferDataFlavors method.

Specified by:

getContent in interface DataContentHandler

Parameters:

ds - The DataSource representing the data to be converted.

Returns:

The constructed Object.

Throws:

IOException - if the data can't be accessed

writeTo

public void writeTo(Object obj,
 String mimeType,
 OutputStream os)
             throws IOException

Write the object to the output stream.

Specified by:

writeTo in interface DataContentHandler

Parameters:

obj - The object to be converted.

mimeType - The requested MIME type of the resulting byte stream.

os - The output stream into which to write the converted byte stream.

Throws:

IOException - errors writing to the stream