uk.org.ogsadai.common
Interface BlockReader

All Known Subinterfaces:

Pipe

All Known Implementing Classes:

CallThroughExternalPipe, CallThroughPipe, DataTransportBlockReader, NonBufferingPipe, SimplePipe, SynchronizedGrowableExternalPipe, SynchronizedGrowablePipe, SynchronizedPipe

public interface BlockReader

This is an interface to read blocks of input data from. A block of input data is an Object the type of which depends on the producer.

Author:

The OGSA-DAI Project Team

Method Summary

boolean	hasNext() Indicates whether or not there are any more blocks of data to be read from the block reader.
java.lang.Object	next() Gets the next block of data contained in the block reader.

Method Detail

next

public java.lang.Object next()

Gets the next block of data contained in the block reader.

Returns:

an Object

Throws:

java.util.NoSuchElementException - if there are no more blocks to read

hasNext

public boolean hasNext()

Indicates whether or not there are any more blocks of data to be read from the block reader.

Returns:

true if there are more blocks to be read or false otherwise