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version 689, Sun Nov 17 01:27:14 2002 UTC version 1659, Fri Jan 30 00:28:02 2004 UTC
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 Open Issues/To-Do Items  Open Issues/To-Do Items
   
    Targeted for 0.5 Alpha 3
   
  Targeted for 0.5 Alpha 1      * peak.events migration
   
     * Finish tutorial chapter 2        - 'running.IProcessProxy' should use conditions/values instead of
           listeners, and related command/supervisor tools should also be ported
   
     * Updated reference docstrings for 'peak.api', 'peak.binding',        - Add tests for Twisted support
       'peak.config', 'peak.exceptions', and 'peak.naming'.  
   
       * peak.ddt
   
         - A bit more doc and demos
   
  Targeted for 0.5 Final Release (or sooner)  
   
   
     General  
   
         * Tutorial complete through chapter 4  
   
   
     peak.storage  
   
         - LDAP field type conversion  
   
         - Rack -> DM  
   
         - "facade" DM base class(es)  
   
         - "query" DM base class(es)  
   
         - unit tests for more complex object scenarios: references, thunks..?  
   
         - SQL field type conversion for txnTime? Should already happen  
           for Sybase and Postgres which select the time. So, what to do  
           about ManagedConnection's txnTime?  
   
         - lock management interfaces/API  
   
         - docstrings for reference  
   
   
     peak.model  
   
         - add support for lazy-loaded attributes  
   
         - clean up TW docstrings & interfaces  
   
     peak.naming  
   
         - useful example "flat" naming context (e.g. like AppUtils.URLkeys)  
   
         - useful example hierarchical naming context (e.g. like JNDI's LDAP  
           context or filesystem context)  
   
         - rework smtp: to return a factory object that supports open().  
           Also think about whether smtp should move elsewhere. Maybe  
           there should be peak.network or peak.internet for things like  
           smtp, ftp, etc contexts?  
   
     peak.running  
   
         - more docs for new 'cluster' tools  
   
         - make 'cluster' parser complain about things that would cause  
           the clusterit tools to choke or barf on the file, or which would  
           produce ambiguous or unintended results.  
   
         - finish misc tasks on peak.running.logs's TODO list  
   
         - simple daemons comparable to those in MetaDaemon  
   
         - unit tests for daemons  
   
         - docstrings for reference  
   
     peak.config  
   
         - "Rule"-oriented configuration files (section specifies component  
           rather than property name prefix), so that daemons and other simple  
           apps can be fully configured and run via a config file.  
   
   
     peak.util  
   
         - docstrings for reference  
   
         - more unit tests?  
   
   
   
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    Targeted for 0.5 Alpha 4
   
       * 'ILoadingService', 'IObjectLoader' and 'load:kind@URL' scheme
   
       * peak.config
   
         - "service zones" or "service groups" to do smarter service groupings
   
         - Replace IMainLoop activity monitoring with a plugin-based mechanism?
   
         - plugin keys ordered by definition sequence, rather than randomly
   
         - ZConfig factory support to allow "smart" interpretation of strings,
           section names, etc.
   
         - Writable and subscribable config sources, including editable .ini's
   
       * peak.running.logs
   
         - Separate formatters from publishers
   
         - ZConfig schema for logging plugins, allowing multiple handlers/category
   
       * peak.running.commands
   
          - Add "error formatting" and "error reporting" services
   
          - Add option parsing framework based on optparse (backported to 2.2)
   
       * peak.binding
   
         - Cleanup/document attribute binding interface
   
       * peak.running.timers
   
         - Factor out state into separate object so timers aren't shared state
   
         - Look at possible integration of peak.query and cursor formatters, in
           order to view stats as an in-memory mini-DB w/reporting.
   
   
       * Transaction/storage refactorings
   
         - transaction scopes for commands and tasks
   
         - integrate locks with transactions
   
         - transactable persistent queues
   
         - DM.find()/DM.get() queries
   
       * peak.web
   
          - clean up DOMlet parse/build framework (e.g. add line number info)
   
  Future Releases         - default error templates, w/useful info
   
   (Note: some of the below is held-over from TransWarp and may no longer be         - A set of simple, basic form controls that handle value rendering only
   relevant as written, they are being kept on this list as placeholders for           (form metadata, validation, etc. will be handled by peak.web.forms in
   ideas or problem areas that may need to be re-considered in future.)           a later release)
   
          - try/catch DOMlet (and related error rendering interface/framework)
   
   Simulator/Module Inheritance         - allow use of // in DOMlets' data paths, to access resource space
   
     * Need a strategy for handling "del" operations; they are currently         - DOMlets for layout/region, as defined in "A layout framework":http://www.eby-sarna.com/pipermail/transwarp/2003-August/000684.html
       untrapped.  This might be okay under most circumstances, but need to  
       consider edge cases.  
   
     * 'makeClass()' should probably become part of the core API, where         - conditional GET support (last modified/ETag) for static resources
       it can be used to resolve __metaclass__ conflicts during the first  
       pass of importing a module (prior to running 'setupModule()')  
   
          - image resources
   
   Messaging/ObjectSpaces         - the return of the Specialist
   
     * Support for sending and receiving remote cache invalidation  
       messages between RecordManagers.  
   
   
       * Have a way to easily in-line custom component usage (e.g. automatically
         create a subclass component with specified 'Obtain' or 'Make' bindings to
         get its configuration).
   
       * Drop 'persistence' package, since ZODB 4 has been derailed.  Change to
         "state-delegation" model, which will integrate better with 'peak.query'.
   
   
   
    Targeted for 0.5 Beta 1
   
       * Up-to-date reference docstrings for all packages
   
       * Finish tutorial chapter 2 (?)
   
       * Web publishing framework sufficient to deploy page-based or object-
         published apps
   
   
   
    Targeted for 0.5 Final Release (or sooner)
   
       peak.storage
   
           - unit tests for more complex object scenarios: references, thunks..?
   
       peak.naming
   
           - useful example "flat" naming context (e.g. like AppUtils.URLkeys)
   
           - useful example hierarchical naming context (e.g. like JNDI's LDAP
             context or a filesystem context)
   
           - rework smtp: to return a factory object that supports open().
   peak.model            Also think about whether smtp should move to peak.net?
   
     * Review other-end-notification protocols in the light of managed storage  
       models (e.g. database Records using virtual sequence objects as fields)  
   
     * Marshalling interface in Services; implementations for Enumeration, etc.  
   
     * More S-E-F metadata: features, subclasses, svc.<->class, nested services  
   
     * A way to generate Z3 Interfaces from Feature-based specifications?  
   
     * Implement WarpCORE-oriented structural model, w/Querying support  
   
     * "Indexed" version of in-memory model?  
   
     * "Persistent" StructuralModel (indexes w/BTrees?  Catalog?)  
   
   
     Queries  
   
        * Refactor to use interfaces, if appropriate  
   
        * Incorporate into AbstractModel?  
   
          - Pros:  
   
            * Queries always available  
   
            * Each StructuralModel implementation can easily include its own  
              performance-tuned version of the basic items.  
   
          - Con: default implementation doesn't perform well on large datasets  
   
        * How much of framework needs extensibility?  Should the predicate  
          classes be placed in the StructuralModel's namespace so that predicates  
          have their meaning assigned by the StructuralModel implementation?  
   
   
   
   
   
   peak.metamodels.uml  
   
     * Need to write an MMX or XMI -> Python generator, and hook it back up into  
       the UML package, since we're right now relying on a module generated  
       by code that depends on stuff which is going away.  
   
     * Helper methods in Elements & Services for marshalling, common queries, etc.  
   
     * Generator framework  
   
       - Tagged values in stereotypes vs. main values?  
   
       - Should tagged values be copied directly into templates?  Treated as  
         Python expressions?  
   
       - Should Services be generated using an Element class' "static"  
         (class-scope) methods/attributes?  
   
         - Are association-ends scoped?  
   
         - Would it be better to seperate them?  
   
       - What determines whether an implemented Service actually stores objects  
         or delegates this to its subclass services?  
   
     * Simple Zope product demo (upload XMI, then browse the model via the web)  
   
    Targeted for version 0.6
   
      * Functional/acceptance tests that access "real" databases, LDAP, etc.
   
      * Get XMI writing in place, w/transaction support
   
      * Generate UML 1.5 and CWM 1.0 and 1.1, and add them to the
        'setup.py' package lists.
   
      * On-the-fly class combination (think "runtime module inheritance",
        but possibly without the modules) for DMs.
   
      * Lock management interfaces/API for peak.storage
   
      * Support for sending and receiving remote cache invalidation
        messages between DataManagers.
   
      * Make 'cluster' parser complain about things that would cause
        the clusterit tools to choke or barf on the file, or which would
        produce ambiguous or unintended results.  (Or replace with ZConfig
        schema that can generate clusterit files.  And/or replace clusterit
        tools with PEAK ones.)
   
   
   
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   peak.metamodels.xmi  
   
     * Re-org to self-contain all XMI stuff inside an _XMI sub-component/service  
   
     * Refactoring to pure S-E-F model using Persistence  
   
     * Document version of standard used  
   
     * Metamodel identity/version checking  
   
     * XMI.Writing  
   
     * Strict parsing and/or diagnostics on files that don't match the metamodel?  
   
     * UUID/GUID support  
   
     * Support for advanced references, external references?  
   
     * XML Namespaces (do any current XMI tools need this?  Which spec version  
       requires this?)  
   
     * DOM StructuralModel (so files can be edited without affecting vendor XMI  
       extensions)  
   
   


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