[
https://issues.apache.org/jira/browse/UIMA-3303?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13783732#comment-13783732
]
Richard Eckart de Castilho commented on UIMA-3303:
--------------------------------------------------
{quote}
I do not like IMPORT * FROM <typesystem> AS <prefix> because a type system can
define many packages or a package that is not related to its name. It seems
more natural to me to import packages explicitly.
{quote}
I wonder, this construction you do not like is still present in your
suggestion. The idea here is to import everything that is in a certain type
system file by its full names. Of course, the type system may define multiple
packages, but that's exactly the point here. You may not want to import each
separately.
{quote}
IMPORT a.b.c AS d could either be import type a.b.c as d or import package
a.b.c as d. The PACKAGE keyword disambiguate this case.
{quote}
Yep. I seem to recall that Peter ran into this ambiguity some time back as
well, although I do not remember the context (type aliases, auto-complete, ...?)
Btw. there is no idea yet how {{<typesystem>}} can be written. I suppose the
default case would be to look in the classpath, e.g.:
{noformat}
1) IMPORT * FROM org.apache.uima.ruta.MyTypes
{noformat}
Options could be also
{noformat}
2) IMPORT * FROM MyTypes -- automatically pre-pending package name of Ruta
script
3) IMPORT * FROM file:///home/MyTypes.xml -- import from local file
4) IMPORT * FROM http://uima.apache.org/ruta/1.0/officialtypes.xml -- import
from remote file
5) IMPORT * FROM classpath*:org/apache/uima/ruta/**/types/*.xml -- import from
all type descriptors in these packages (Spring syntax)
{noformat}
I think 2 also is quite reasonable, not so sure about 3-5. I would always
discourage 3. 4 mimicks how people often use DTD/XML Schema but isn't a road
that UIMA has so far taken. 5 is kind of an in-line version of the uimaFIT
detection mechanism.
> Add a way to alias types in RUTA (e.g. "IMPORT type AS alias")
> --------------------------------------------------------------
>
> Key: UIMA-3303
> URL: https://issues.apache.org/jira/browse/UIMA-3303
> Project: UIMA
> Issue Type: Bug
> Components: ruta
> Reporter: Alexandre Patry
> Assignee: Alexandre Patry
>
> It would be convenient to define type aliases in RUTA script.
> One scenario where it would help is when many types have the same short name:
> {noformat}
> IMPORT com.example.a.T AS TA
> IMPORT com.example.b.T AS TB
> {noformat}
> For a discussion about it, see UIMA-3292.
--
This message was sent by Atlassian JIRA
(v6.1#6144)
