||The PageIteratorWrapper class is the base wrapper for the page
iterator, which is used by the paging mechanism to transmit data to the
caller in the form of pages.
||The PageException class represents an exception thrown when an error
occurs while paging through the results of a search using the page iterator
(such as when an object in the iterator cannot be retrieved, the iterator
cannot be created, or next is called when the iterator index is already
at the end).
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