javax.mail
Interface MultipartDataSource
- DataSource
- IMAPMultipartDataSource
public interface MultipartDataSource
extends DataSource
 MultipartDataSource is a DataSource that contains body parts.
 This allows "mail aware" DataContentHandlers to be implemented 
 more efficiently by being aware of such DataSources and using the 
 appropriate methods to access BodyParts.
 
 Note that the data of a MultipartDataSource is also available as an input
 stream.
 
 This interface will typically be implemented by providers that preparse
 multipart bodies, for example an IMAP provider.
- DataSource
getBodyPart
public BodyPart getBodyPart(int index)
            throws MessagingException Get the specified Part.
 Parts are numbered starting at 0.
- index- the index of the desired Part
getCount
public int getCount()
 Return the number of enclosed BodyPart objects.