Lazy Module
Revision as of 14:59, 12 March 2013 by CG (talk | contribs) (Created page with "This XQuery Module contains functions for handling ''streamable'' items. In contrast to conventional XQuery items, streamable items may take up much less spac...")
This XQuery Module contains functions for handling streamable items.
In contrast to conventional XQuery items, streamable items may take up much less space, because they only contain a reference to the actual data. The data will not be retrieved until the item is required, e.g. if data needs to be serialized or processed by another expression.
Conventions
All functions in this module are assigned to the http://basex.org/modules/stream
namespace, which is statically bound to the stream
prefix.
All errors are assigned to the http://basex.org/errors
namespace, which is statically bound to the bxerr
prefix.
Functions
stream:materialize
Signatures | stream:materialize($item as item()) as item()
|
Summary | Returns a materialized instance of the specified $item .If an item is streamable, its content will be retrieved, and a new item containing its data will be returned. Other, non-streamable items will simply be returned. |
stream:is-streamable
Signatures | stream:is-streamable($item as item()) as item()
|
Summary | Checks if the specified $item is streamable.
|
Changelog
This module was introduced with Version 7.7.