org.orekit.data

Interface DataSource.StreamOpener

Enclosing class:

DataSource

public static interface DataSource.StreamOpener

Interface for lazy-opening a binary stream one time.

Method Summary

Modifier and Type	Method and Description
InputStream	openOnce() Open the stream once.

Method Detail

openOnce

InputStream openOnce()
              throws IOException

Open the stream once.

Beware that this interface is only intended for lazy opening a stream, i.e. to delay this opening (or not open the stream at all). It is not intended to open the stream several times. Some implementations may fail if an attempt to open a stream several times is made. This is particularly true for network-based streams.

Returns:

opened stream

Throws:

IOException - if stream cannot be opened