Definitions for "Iterator"
An execution engine operator. Query results are encapsulated using iterators that are self-contained software objects that accept a stream of rows from null or n-ary data sets. The role of an iterator is to process many iterations of a data set across many nodes in serial or parallel. Iterators do not know what the source of the data stream is, if the source is external, such as another iterator, or do know the source if source is internal, such as when the source is produced by the iterator itself. For each iteration of a data set, the iterator applies a predefined behavior to the data set being processed, manipulating the data according to the specification of that iterator. For example, scanning rows from a table on disk can be the behavior of one type of iterator. A key feature of iterators is that regardless of what type the iterator is and what behavior is associated with it, all iterators follow the same mode and have the same external interface. They all open data streams, iteratively read the streams, then process and close the streams.
a datatype that encapsulates a list
a different class which acts as a pointer to an object in your collection
a special type of procedure or function that you use in conjunction with the HLA FOREACH
An iterator is a method that enables consumers of a class that contains a collection or array to use foreach, in (C# Reference) to iterate through that collection or array.
Keywords:  sather, clu, icon, research, construct
a language construct based on similar features in research languages such as CLU, Sather, Icon, and more
Keywords:  bun, mil, loops, bat, subset
a command that loops through a subset of a BAT and for each pair of values in a BUN executes a MIL block
a generalized looping structure whose iterations are determined by a generator
a read operation, not a take operation
a superclass for all dataflow operators
a class that abstracts the process of moving through a sequence
an abstraction for genericity
a section of code that returns an ordered sequence of values
a class provides a systematic and safe way to step through the elements of a data structure (represented by a different class)
a handle to a contained element
a mechanism used to step through the elements in a data structure
Keywords:  theories, union, two
a union of two theories
a cross between a control structure and a function