uk.org.ogsadai.common
Interface BlockMaker

All Known Implementing Classes:

XMLResourceSetBlockMaker

public interface BlockMaker

A BlockMaker is used to retrieve a sequence of blocks of some type. The interface is similar to a that of a java.util.Iterator.

Author:

The OGSA-DAI Project Team

next

public java.lang.Object next()
                      throws BlockMakerException

Returns the next block.

Returns:

an Object.

Throws:

BlockMakerException - if a problem occurs when accessing the block.

hasNext

public boolean hasNext()
                throws BlockMakerException

Returns true if this BlockMaker has more blocks to return, otherwise false.

Returns:

true or false.

Throws:

BlockMakerException - if a problem occurs when accessing the blocks.