Hi Ed,
At least we have got an agreement, the current impact analyzer
should be promoted to org.eclipse.ocl.ecore :)
I've always seen the OCL Tools components as those UI-based
components which rely on a OCL Core infrastructure, as they were
thought and we had been developed in the currently terminated OCL
Tools project. Whereas the OCL Core components could sensibly work
in stand-alone mode, the Tools components could probably need some
Eclipse UI platform to run. Remember the namespace used to distinct
bundles between the "MDT/UML" project and the "MDT/UML Tools" one.
On the one hand, distinguishing Tools components with a prefix does
quite sense to me. Looking at a Juno installation, excepting the
"org.eclipse.e4.emf.xpath" bundle, every bundle of the "new" e4
project are categorized in a "core" / "ui" fashion. On the other
hand, projects like EMF have its UI components categorized in the
respective feature as you suggests.
I prefer the "core/tools" prefixes since it clearly distinguish core
from UI-based components, apart from the benefits I mentioned in my
previous post. Perhaps "ui" sounds better for you. Perhaps we could
not introduce the "core" prefix, but at least use "tools/ui" one.
Finally I would like to better understand the/understand more
inconvenients of my proposal. Your first argument doesn't suffice to
me: we would be suffering of the same issue if we had had to deal
with a separate OCL Tools project, and the Eclipse "Working Sets"
help to organize the bundles in the workspace (for instance to group
bundles concerning the same feature/tool, regardless its namespace).
Regards,
Adolfo.
El 04/02/2012 11:59, Ed Willink escribió:
Hi Adolfo
Thanks, it's much easier to move forward once you have a stake in
the ground.
Uniform core/tools prefixes seems attractive but, to avoid
confusion from existing facilities, consider what would happen if
we added a new symbolic proof tool.
With uniform core/tools prefixes we might have:
core.proof
core.doc.proof
core.examples.proof
core.tests.proof
tools.proof.compiler
tools.proof.editor
tools.doc.proof.editor
tools.examples.proof.editor
tools.tests.proof.editor
whereas if we group by tool rather than delivery we might have
proof.runtime
proof.compiler
proof.editor
proof.examples
proof.tests
proof.doc
If we need to use examples as an incubation area, during the
examples phase we have no problem with
examples.proof.*
But if we find we need three categories of build rather than two,
using the build category as a package prefix is unhelpful.
Also, I'm not sure that users want to have core/tools as part of
their imported package path.
For tools at least I think we need a clear tool name as the first
name. Subsequent names we can try to make regular to so that
*.doc.*, *.tests.*, *.examples.*, *.runtime.* makes releng
partitioning fairly easy.
For the current plugins "ecore" and "uml" can be regarded as tool
names, so "ecore.tests" and "uml.tests" are regular names.
For the Impact Analyzer then "impact" is short and snappy, so
perhaps we want "impact.ecore.runtime", "impact.ecore.analyzer",
"impact.common.analyzer", "impact.tests", "impact.examples",
"impact.doc"
For the Console, I would look towards http://wiki.eclipse.org/MDT/OCL/Debugger
and so we might be looking at "debugger.input",
"debugger.variables", "debugger.breakpoints", ... once we
eventually promote from examples.
For the Xtext editors, "editor..." is probably ok, unless we want
to split as "parser" and "editor". We can decide this later.
The Pivot model seem the hardest bit, because there is the neutral
domain model. Perhaps "vm.runtime", "vm.model", "vm.library" so
that "pivot" is left with a fairly similar purpose to "ecore" and
"uml".
So we have the following top level 'tools':
common (may not reference any other 'tool')
ecore
uml
pivot
vm
impact
parser
editor
debugger
codegen
and the only plugins that do not comply are org.eclipse.ocl and
org.eclipse.ocl.tests
Tool-specific facilities are in ...tests..., ...examples...,
...doc.... Cross-tool integration is in tests..., examples...,
doc...
The above is for plugin/package names.
I think Core/Tool prefixes would be good for feature names since
if we need to have three deliveries we probably need to re-arrange
features anyway.
Regards
Ed
On 03/02/2012 16:15, Adolfo Sánchez-Barbudo Herrera wrote:
Hi Ed,
Today is quite easy to identify OCL Tools components, that is:
org.eclipse.ocl.examples.*
The problems come when identifying Core components, unless we
consider Core everything is not o.e.o.examples.* (However, this
doesn't help from the point of view of the regular expressions
which are used, anyway).
From a releng (and any user) perspective it would be quite easy
identify components if we had:
- org.eclipse.ocl.core.* for Core components.
- org.eclipse.ocl.tools.* for Tools components.
This distinction could help, if we desired to have
documentation, examples and tests for both Core and Tools
components:
- org.eclipse.ocl.core.doc for Core API usage
documentation/help.
- org.eclipse.ocl.core.examples.* for Core API usage examples.
- org.eclipse.ocl.core.tests.* for Core API tests.
- org.eclipse.ocl.tools.doc for Tools documentation/help.
- org.eclipse.ocl.tools.examples.* for Tools examples.
- org.eclipse.ocl.tools.tests.* for (probably UI-based) tests.
This namespace could also help to identify the future components
of the project. Everything not scoped in
org.eclipse.ocl.core/tools should probably be deprecated and
eventually deleted in future releases. I imagine something like
the following:
org.eclipse.ocl ->
mature, deprecated code
org.eclipse.ocl.uml -> mature,
deprecated code
org.eclipse.ocl.ecore -> mature,
deprecated code
org.eclipse.ocl.ecore.impactanalysis[1] -> impact analysis
for the mature deprecated code
org.eclipse.ocl.core.pivot -> new
pivot implementation
org.eclipse.ocl.core.essentialocl -> new
pivot-based Essential OCL Implementation
org.eclipse.ocl.core.completeocl -> new
pivot-based Complete OCL Implementation
org.eclipse.ocl.core.impactanalysis -> impact
analysis for the new pivot-based implementation
org.eclipse.ocl.core.doc ->
documentation for the Core API usage
org.eclipse.ocl.core.examples.* -> Examples
for Core API usage.
org.eclipse.ocl.core.tests.* -> tests
for Core API.
org.eclipse.ocl.tools.console -> OCL
Console.
org.eclipse.ocl.tools.editor.essentialocl -> Editor for
Essential OCL
org.eclipse.ocl.tools.editor.completeocl -> Editor for
Complete OCL
org.eclipse.ocl.tools.doc ->
documentation/help for Tools.
org.eclipse.ocl.tools.examples.* -> examples
for Tools.
org.eclipse.ocl.tools.tests.* ->
(probably UI-based) tests for Tools.
... and such [2].
Again, this is a suggestion, which could make sense since we are
now distinguising and exposing different Core and Tools
components. It's not a necessity at all.
Adding a new/good features organization, we could finally
distribute Core components in a pure Core Repository, and the
Tools components in a pure Tools Repository. We could also
distribute the current (deprecated and removed in the future)
Core components in a "Deprecated Repository".
Nowadays, because of the current feature organization, the Core
Repository contains only Core Components, however, the Tools
repository contains both Core and Tools components.
Note: [1] Just to name the impact analyzer. This obviously could
be organized as Axel requires/expects.
Note: [2] I know that I'm missing a lot of plugins, but I hope
the idea is caught.
Best Regards,
Adolfo.
El 03/02/2012 14:18, Ed Willink escribió:
Hi Adolfo
Would you like to put together a proposal for revised feature
and plugin names and hierarchy, since your releng perspective
gives you slightly different interests? 4.0.0 is a major
version so we can totally reorganize if absolutely necessary -
I hope not.
From a modeling perspective, a Feature contain Features or
Plugins so a simple indented list is sufficient to identify
the intended location of all plugins and features and Update
Site Names.
feature X (Descriptive Name for X)
plugin Y
feature Z (Descriptive Name for Z)
plugin A
For the sake of future proofing, assign names as if all
plugins are promoted from examples now; we'll just defer
renaming examples plugins until they are actually promoted.
Regards
Ed
On 03/02/2012 13:58, Adolfo Sánchez-Barbudo Herrera wrote:
Finally, I would like to remark (I've not thought about it)
the importance of the new namespace from the point of view
of another stakeholder: The releng :). It could be
interesting to avoid problems like [1] or further changes in
the releng stuff configuration to accomodate new plugins,
having a "coherent" or "uniform" namespace to distinguish
Core components from the Tools one.
[1] https://bugs.eclipse.org/bugs/show_bug.cgi?id=370347#c1
El 03/02/2012 12:03, Ed Willink escribió:
plugin and other global names
These obviously change. The simplest change is just delete
".examples". Do we want to do something else?
It would be nice if the event plugins went to EMF, but
that doesn't look likely, so they too need review.
It would be nice to have names that can accommodate the
pivot model sometime. I would like to try to partition the
code into the run-time code that performs (re-)evaluation
and the meta-run-time code that maintains the control
objects that make IA so good. If this is possible, then we
want corresponding names. Perhaps
org.eclipse.ocl.ecore.impact.runtime
org.eclipse.ocl.ecore.impact.analyzer
I hope that migration of the run-time code to align with
the code generated Java can be done quite easily, since
the code generated Java makes no use of any form of the
OCL meta-model; just the polymorphic Values and
polymorphic Domain model for which there is direct and
Reflective Ecore support. Perhaps
org.eclipse.ocl.domain.impact.runtime
Migration of the meta-run-time code will be harder because
that obviously makes use of the OCL meta-model. Perhaps
org.eclipse.ocl.pivot.impact.analyzer
In order to avoid code duplication, code that is
independent of Ecore/UML/Pivot should be in perhaps
org.eclipse.ocl.common.impact
It may also be appropriate to place some declarations
independent of Ecore/UML/Pivot such as extension points in
org.eclipse.ocl.common
We cannot easily use org.eclipse.ocl since that is highly
Ecore/UML dependent.
NB being independent of Ecore does not prohibit use of
EObject, EObject.eClass() etc. I hope that the external
API facade can be Ecore/UML/Pivot independent and so in
org.eclipse.ocl.common.impact.
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