public class CacheDocuments : ParentModule, IModule, IEnumerable<IModule>, IEnumerable, IDisposable

This module will execute child modules and cache the output documents. On following executions, the cached documents will be output if the input documents (as well as any other specified documents) match the original inputs (as defined by a hash of the document content and metadata). Using this module can greatly improve performance on re-execution after making changes in preview mode. In general, caching works best when there is a one-to-one relationship between input and output documents. Modules that aggregate documents into groups such as CreateTree should not be used as child modules of the cache module. Instead they should appear after the cache module and operate on the cached outputs. The input documents to child modules will consist only of cache misses. If a child module needs to access the full set of input documents, it can do so via Parent.