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:: com :: sun :: star :: io ::

service ObjectInputStream
Description
is a stream which allows reading the data of persistent objects.

Implementations of this service must fulfill the specifications of the DataInputStream service. It must be chained to an XMarkableStream. Therefore, it provides the XMarkableStream interface, and delegates the calls to the chained object.

The written objects are held until this instance is destroyed. The references to the objects are read as four-byte integers. Data format reads:

 short InfoLength
 long ObjectReference // 0 indicates no object
 UTF ServiceName // length of 0 indicates this is only a reference
 long ObjectLength // 0 if it is a reference or no object, otherwise the len of the object data
 Object ObjectData // the data of the object
 ... // skipping additional data
 
Guarantees
  • -thread safe
  • -allow buffer size is 2 ^ 31 -1
  • -maximum object reference identifier must be the number of objects.
  • -object reference identifier 0 indicates no object
  • -skip addition data
  • -set the stream position behind the object data

Exported Interfaces - Summary
XObjectInputStream

allows to read the data from the stream.

XActiveDataSink

allows to set the underlying inputstream

XConnectable

allows to navigate via a chain of streams

XMarkableStream

allows to set marks within the stream. The implementation may forward calls to this interface to a chained markablestream.

Exported Interfaces - Details
XObjectInputStream
Description
allows to read the data from the stream.
XActiveDataSink
Description
allows to set the underlying inputstream
XConnectable
Description
allows to navigate via a chain of streams
XMarkableStream
Description
allows to set marks within the stream. The implementation may forward calls to this interface to a chained markablestream.

 
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