Class Fedora.DigitalObject.DataStreamShadow 
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Class Fedora.DigitalObject.DataStreamShadow 

Object
   |
   +----ObjectImpl
           |
           +----DynamicImplementation
                   |
                   +----_DataStreamSkeleton
                           |
                           +----_DataStreamImplBase
                                   |
                                   +----DataStreamImpl
                                           |
                                           +----Fedora.DigitalObject.DataStreamShadow
public class DataStreamShadow
extends DataStreamImpl
implements Serializable
A DataStreamShadow is a lightweight proxy for a DataStream used as the means of storing DataStream references inside a DigitalObject. The DataStreamShadow contains the DataStreamID and a method for loading the actual DataStream from persistent storage. It does not contain the DataStream administrative attributes nor the array of bytes that constitues tha actual "content" of the DataStream.

See Also:
DataStreamImpl, DigitalObjectImpl

Constructor Index

o Fedora.DigitalObject.DataStreamShadow(DataStreamImpl)
Constructor for DataStreamShadow.

Method Index

o LoadDataStream()
Loads the full DataStream (represented by this shadow object) from persistent storage.

Constructors

o DataStreamShadow 
protected DataStreamShadow(DataStreamImpl dataStream) throws RepositorySystemError
Constructor for DataStreamShadow. Creates a new DataStreamShadow object to be stored inside a DigitalObject in place of the full DataStream.

Parameters:
dataStream - the DataStream object the the shadow object will represent

Methods

o LoadDataStream 
protected Fedora.DigitalObject.DataStreamImpl LoadDataStream() throws RepositorySystemError
Loads the full DataStream (represented by this shadow object) from persistent storage.

Returns:
an instance of the DataStream represented by this DataStreamShadow. 
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