org.orekit.data

Interface DataSource.ReaderOpener

Enclosing class:

DataSource

public static interface DataSource.ReaderOpener

Interface for lazy-opening a characters stream one time.

Method Summary

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

Method Detail

openOnce

Reader 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