and utilities can be loaded or computed on demand, supplied by rules, |
and utilities can be loaded or computed on demand, supplied by rules, |
defined in configuration files or code, in a supplied or custom |
defined in configuration files or code, in a supplied or custom |
format. Properties and utilities are contextual and can be safely |
format. Properties and utilities are contextual and can be safely |
acquired from parent/context components automatically. System-wide |
acquired from parent/context components automatically. |
(per Python interpreter), application-wide (per running application |
|
within an interpreter) and per-component configuration settings |
|
are available. |
|
|
|
* Naming system/framework that's midway between J2EE's JNDI and CORBA's |
* Naming system/framework that's midway between J2EE's JNDI and CORBA's |
cosNaming in features, but much easier to use and extend than either |
cosNaming in features, but much easier to use and extend than either |
* CASE/modelling tools: PEAK includes APIs to read object |
* CASE/modelling tools: PEAK includes APIs to read object |
models created in the XML-based XMI format. Many open-source and |
models created in the XML-based XMI format. Many open-source and |
commercial modelling tools support XMI, inlcuding Argo/Poseidon and |
commercial modelling tools support XMI, inlcuding Argo/Poseidon and |
MagicDraw UML. PEAK includes pre-built support for UML versions 1.3 |
MagicDraw UML. PEAK includes pre-built support for UML version 1.3 |
through 1.5, CWM 1.1, and MOF 1.3.1, using XMI versions 1.0 through 1.2. |
and MOF 1.3.1, using XMI versions 1.0 and 1.1. (UML 1.4, UML 1.5, |
Also included, a MOF->Python code generator, which was used to generate |
CWM 1.0, CWM 1.1, and XMI 1.2 are anticipated for 0.5a2, and possibly |
the UML and CWM support, and which you can use to generate support for |
XMI 2.0 by 0.5 final.) Also included is a MOF->Python code generator, |
other modelling languages based on the MOF. |
which was used to generate the UML and CWM support, and which you can |
|
use to generate support for other modelling languages based on the MOF. |
|
|
For the specifications of XMI, MOF, CWM, and UML, visit: |
For the specifications of XMI, MOF, CWM, and UML, visit: |
http://www.omg.org/technology/documents/modeling_spec_catalog.htm |
http://www.omg.org/technology/documents/modeling_spec_catalog.htm |
from PEAK models (and vice versa) is possible (although |
from PEAK models (and vice versa) is possible (although |
not yet implemented for anything but MOF->PEAK). |
not yet implemented for anything but MOF->PEAK). |
|
|
|
* Application Runtime tools, including: |
|
|
|
- a "command objects" framework for creating command-line applications |
|
|
|
- a "periodic tasks" framework for executing tasks that perform "as |
|
needed", scheduling themselves in response to their available workloads |
|
|
|
- a CGI/FastCGI publishing framework that uses 'zope.publisher' to |
|
publish a PEAK component tree and its associated transaction service |
|
|
|
- an event-driven "reactor" framework that seamlessly integrates with |
|
Twisted, but can also be used without Twisted for applications that are |
|
mostly scheduling-oriented, or which use only third-party protocol |
|
implementations such as FAM, FastCGI, ReadyExec, etc. |
|
|
* AOP and SOP: PEAK allows you to separate concerns as modules, then |
* AOP and SOP: PEAK allows you to separate concerns as modules, then |
combine the modules via a "module inheritance" technique. This |
combine the modules via a "module inheritance" technique. This |
lets you define a generated business object model as a |
lets you define a generated business object model as a |
"structural" concern, and then combine it with a "behavioral" |
"structural" concern, and then combine it with a "behavioral" |
concern. This is as simple as writing classes that just contain |
concern. This is as simple as writing classes that contain only |
what you want to add, and then telling PEAK that your new module |
what you want to add, and then telling PEAK that your new module |
"inherits" from the generated module. |
"inherits" from the generated module. This is similar to (but |
|
designed independently from) the "MixJuice" tool for AOP in Java. |
|
|
|
|
Known Issues and Risks of this Version |
Known Issues and Risks of this Version |
in areas not covered by the test suites. Also, many system interfaces |
in areas not covered by the test suites. Also, many system interfaces |
are still subject to change. |
are still subject to change. |
|
|
PEAK includes early copies of Zope X3's 'Interface' and 'Persistence' |
PEAK includes early copies of Zope X3's 'zope.interface' and 'persistence' |
packages, which have since changed names in their official releases, |
packages, which have had - and will continue to have - significant |
and have had - and will continue to have - significant implementation |
implementation changes. We will be tracking Zope X3 periodically, but |
changes. Complete interoperability with Zope X3 is therefore currently |
can't guarantee compatibility with arbitrary (e.g. CVS) versions of |
at risk. We are waiting until the pending refactoring of Zope 3's |
Zope X3. |
interface package is complete before upgrading from 'Interface' to |
|
'zope.interface'. Also, the ZODB persistence package is undergoing |
|
some changes that may make it less useful for PEAK, and we may be |
|
forced to "fork" and/or create our own C-level persistence support. |
|
This may be clearer once ZODB4 and/or Zope 3 reach their next release. |
|
|
|
Documentation at present is limited, and scattered. The principal |
Documentation at present is limited, and scattered. The principal |
documentation is an API reference generated from the code's lengthy |
documentation is an API reference generated from the code's lengthy |
tutorial on using the component binding package. |
tutorial on using the component binding package. |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Third-Party Software Included with PEAK |
Third-Party Software Included with PEAK |
|
|
|
All third-party software included with PEAK are understood by PEAK's |
|
authors to be distributable under terms comparable to those PEAK is |
|
offered under. However, it is up to you to understand any obligations |
|
those licenses may impose upon you. For your reference, here are the |
|
third-party packages and where to find their license terms: |
|
|
The 'kjbuckets' module is Copyright Aaron Watters and contributors; |
The 'kjbuckets' module is Copyright Aaron Watters and contributors; |
please see the 'src/kjbuckets/COPYRIGHT.txt' file for details of its |
please see the 'src/kjbuckets/COPYRIGHT.txt' file for details of its |
license. |
license. |
|
|
The 'Interface' and 'Persistence' packages are Copyright Zope Corporation |
The 'persistence' and 'ZConfig' packages are Copyright Zope Corporation |
and contributors; please see the 'LICENSE.txt' files for details of their |
and contributors; please see the 'LICENSE.txt' files in their directories |
licenses. |
for details of their licenses. |
|
|
|
The 'fcgiapp' module is Copyright Digital Creations, LC (now Zope Corp.); |
|
see the 'fcgiappmodule.c' for details of its license. In the same |
|
directory are distributed portions of the FastCGI Development Kit, which |
|
is Copyright Open Market, Inc. See the 'LICENSE.TERMS' file in that |
|
directory for details of its license. |
|
|
Installation Instructions |
Installation Instructions |
|
|
Please see the INSTALL.txt file. |
Please see the INSTALL.txt file. |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|