Feature Iterators

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Feature Iterators

Feature iterators are objects used to read cartographic objects. The IlvMapFeatureIterator abstract class allows you to read cartographic data in a uniform way whatever its origin (file, database, map server, and so on).

All the predefined readers supplied with Rogue Wave® Views Maps implement this interface. They can be found in the package format. For a detailed description of these readers, see Chapter 5, Predefined Readers.

This section covers the following topics:

Overview of IlvMapFeatureIterator presents the class and its main methods.

Writing a New Reader shows how to write a reader for cartographic files of a specific format using an example. Through this example, you will see a basic implementation of a feature iterator that uses most of the methods that the interface provides.

Version 5.8