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version 661, Sun Nov 10 20:07:30 2002 UTC version 1639, Mon Jan 26 00:08:16 2004 UTC
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 Open Issues/To-Do Items  Open Issues/To-Do Items
   
  Targeted for 0.5 Alpha 1   Targeted for 0.5 Alpha 3
   
     * Updated reference docstrings for 'peak.api', 'peak.binding',      * peak.events migration
       'peak.config', 'peak.exceptions', and 'peak.naming'.  
   
     * Additional content for the tutorial's chapter on binding        - 'running.IProcessProxy' should use conditions/values instead of
           listeners, and related command/supervisor tools should also be ported
   
         - Add tests for Twisted support
   
  Targeted for 0.5 Final Release (or sooner)        - Implement boolean operations on conditions (i.e. &, |, ~), and
           isTrue/isFalse properties on values.
     General  
   
         * Update tutorial documentation  
   
         * Up-to-date and complete Persistence package  
   
     peak.storage      * peak.ddt
   
         - SQL cursor(joinTxn=flag) shortcut for .joinTxn()        - Row and Action processors, better heading->property name translation
   
         - SQL cursor error logging, close conn on error, and rewrap errors  
           w/SQL in error object  
   
         - SQL field type conversion (should txnTime standard change?)  
   
         - 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..?  
   
         - lock management interfaces/API  
   
         - docstrings for reference  
   
     peak.model  
   
         - add support for lazy-loaded attributes  
   
         - clean up TW docstrings & interfaces  
   
     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.  
   
         - create a basic LogFile logging provider w/URL comparable to AppUtils  
   
         - 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).  
   
     peak.util  
   
         - docstrings for reference  
   
         - more unit tests?   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
   
  Future Releases        - Separate formatters from publishers
   
   (Note: some of the below is held-over from TransWarp and may no longer be        - ZConfig schema for logging plugins, allowing multiple handlers/category
   relevant as written, they are being kept on this list as placeholders for  
   ideas or problem areas that may need to be re-considered in future.)  
   
       * peak.running.commands
   
   Simulator/Module Inheritance         - Add "error formatting" and "error reporting" services
   
     * Need a strategy for handling "del" operations; they are currently         - Add option parsing framework based on optparse (backported to 2.2)
       untrapped.  This might be okay under most circumstances, but need to  
       consider edge cases.  
   
     * 'makeClass()' should probably become part of the core API, where      * peak.binding
       it can be used to resolve __metaclass__ conflicts during the first  
       pass of importing a module (prior to running 'setupModule()')  
   
         - Cleanup/document attribute binding interface
   
   Messaging/ObjectSpaces      * peak.running.timers
   
     * Support for sending and receiving remote cache invalidation        - Factor out state into separate object so timers aren't shared state
       messages between RecordManagers.  
   
         - 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)
   
          - default error templates, w/useful info
   
          - A set of simple, basic form controls that handle value rendering only
            (form metadata, validation, etc. will be handled by peak.web.forms in
            a later release)
   
          - try/catch DOMlet (and related error rendering interface/framework)
   
          - allow use of // in DOMlets' data paths, to access resource space
   
          - DOMlets for layout/region, as defined in "A layout framework":http://www.eby-sarna.com/pipermail/transwarp/2003-August/000684.html
   
          - conditional GET support (last modified/ETag) for static resources
   
          - image resources
   
          - the return of the Specialist
   
       * 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).
   
   peak.model      * Drop 'persistence' package, since ZODB 4 has been derailed.  Change to
         "state-delegation" model, which will integrate better with 'peak.query'.
   
     * 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   Targeted for 0.5 Beta 1
   
     * A way to generate Z3 Interfaces from Feature-based specifications?      * Up-to-date reference docstrings for all packages
   
     * Implement WarpCORE-oriented structural model, w/Querying support      * Finish tutorial chapter 2 (?)
   
     * "Indexed" version of in-memory model?      * Web publishing framework sufficient to deploy page-based or object-
         published apps
   
     * "Persistent" StructuralModel (indexes w/BTrees?  Catalog?)  
   
   
     Queries   Targeted for 0.5 Final Release (or sooner)
   
        * Refactor to use interfaces, if appropriate  
   
        * Incorporate into AbstractModel?  
   
          - Pros:      peak.storage
   
            * Queries always available          - unit tests for more complex object scenarios: references, thunks..?
   
            * Each StructuralModel implementation can easily include its own      peak.naming
              performance-tuned version of the basic items.  
   
          - Con: default implementation doesn't perform well on large datasets          - useful example "flat" naming context (e.g. like AppUtils.URLkeys)
   
        * How much of framework needs extensibility?  Should the predicate          - useful example hierarchical naming context (e.g. like JNDI's LDAP
          classes be placed in the StructuralModel's namespace so that predicates            context or a filesystem context)
          have their meaning assigned by the StructuralModel implementation?  
   
           - rework smtp: to return a factory object that supports open().
             Also think about whether smtp should move to peak.net?
   
   
   
   
   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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