[appengine-java] Re: Unsupported method contains while parsing expression:
Hey Google,
If that really is a mistake in the documentation that Ftaylor pointed out,
can you take the 5 minutes and update it? That 5 minutes sure would pay
lots of dividends on the other side in terms of saved minutes trying to
figure out why things aren't working.
The documentation is posted here:
http://code.google.com/appengine/docs/java/datastore/jdo/queries.html#Introducing_Queries
In the Query Filters section, the example shown contradicts the JDO spec
according to Andy's response.
Now, if the documentation is correct, then I'm just confused, and I'll just
crawl back into my computer screen and continue beating my head against
this stuff until it makes sense. However, if it's not correct, can we get
someone to update that please? It's been 3 years now. :)
Thanks,
James
On Thursday, January 28, 2010 4:45:26 AM UTC-8, Ftaylor wrote:
Code:
Class Page {
ListString aliases;
...
query = pm.newQuery(Page.class);
query.setFilter(:aliases.contains(alias));
query.declareVariables(String alias);
ListPage results = (ListPage)query.execute(alias);
...
}
I want to select Page objects where the aliases property contains a
given alias String value. Is there any way to do this? I tried as
above and got an exception:
Problem with query SELECT FROM getimgs.Page WHERE :aliases.contains
(alias) VARIABLES String alias: Unsupported method contains while
parsing expression: InvokeExpression{[ParameterExpression
{aliases}].contains(VariableExpression{alias})}
If this cannot be done with JDOQL, the only solution I can think of is
selecting every Page object, then looping through them and using
Java's contains method, but this sucks somewhat.
Anyone?
Cheers,
Finbarr
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[appengine-java] Re: Unsupported method contains while parsing expression:
Sorry, it was 2 years ago. I added wrong :) James On Wednesday, February 3, 2010 9:40:27 AM UTC-8, Ftaylor wrote: There actually seems to be a mistake in the documentation: // Give me all Employees with lastName equal to Smith or Jones Query query = pm.newQuery(Employee.class, :p.contains(lastName)); query.execute(Arrays.asList(Smith, Jones)); Surely it should be: // Give me all Employees with lastName equal to Smith or Jones Query query = pm.newQuery(Employee.class, p.contains(:lastName)); query.execute(Arrays.asList(Smith, Jones)); On Feb 2, 10:29 pm, Ikai L (Google) ika...@google.com wrote: Oy, this is what I get for not running code before posting it. Good looking out. On Tue, Feb 2, 2010 at 1:06 AM, datanucleus andy_jeffer...@yahoo.com wrote: query.setFilter(aliases == alias); That is invalid JDOQL syntax; the spec is the spec and JDOQL uses Java syntax. If you have a collection field then the filter should be aliases.contains(:alias) The poster put the colon in front of a field name (wrong), and declared a parameter as a variable (wrong). -- You received this message because you are subscribed to the Google Groups Google App Engine for Java group. To post to this group, send email to google-appengine-java@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.comgoogle-appengine-java%2B unsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en. -- Ikai Lan Developer Programs Engineer, Google App Enginehttp:// googleappengine.blogspot.com|http://twitter.com/app_engine -- You received this message because you are subscribed to the Google Groups Google App Engine for Java group. To view this discussion on the web visit https://groups.google.com/d/msg/google-appengine-java/-/k-5OJNQMQmUJ. To post to this group, send email to google-appengine-java@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
[appengine-java] Re: Unsupported method contains while parsing expression:
There actually seems to be a mistake in the documentation: // Give me all Employees with lastName equal to Smith or Jones Query query = pm.newQuery(Employee.class, :p.contains(lastName)); query.execute(Arrays.asList(Smith, Jones)); Surely it should be: // Give me all Employees with lastName equal to Smith or Jones Query query = pm.newQuery(Employee.class, p.contains(:lastName)); query.execute(Arrays.asList(Smith, Jones)); On Feb 2, 10:29 pm, Ikai L (Google) ika...@google.com wrote: Oy, this is what I get for not running code before posting it. Good looking out. On Tue, Feb 2, 2010 at 1:06 AM, datanucleus andy_jeffer...@yahoo.comwrote: query.setFilter(aliases == alias); That is invalid JDOQL syntax; the spec is the spec and JDOQL uses Java syntax. If you have a collection field then the filter should be aliases.contains(:alias) The poster put the colon in front of a field name (wrong), and declared a parameter as a variable (wrong). -- You received this message because you are subscribed to the Google Groups Google App Engine for Java group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.comgoogle-appengine-java%2B unsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en. -- Ikai Lan Developer Programs Engineer, Google App Enginehttp://googleappengine.blogspot.com|http://twitter.com/app_engine -- You received this message because you are subscribed to the Google Groups Google App Engine for Java group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
[appengine-java] Re: Unsupported method contains while parsing expression:
Wow that mistake in the documentation wasted days of my time. Thankyou datanucleus. On Feb 3, 5:40 pm, Ftaylor finbarrtay...@googlemail.com wrote: There actually seems to be a mistake in the documentation: // Give me all Employees with lastName equal to Smith or Jones Query query = pm.newQuery(Employee.class, :p.contains(lastName)); query.execute(Arrays.asList(Smith, Jones)); Surely it should be: // Give me all Employees with lastName equal to Smith or Jones Query query = pm.newQuery(Employee.class, p.contains(:lastName)); query.execute(Arrays.asList(Smith, Jones)); On Feb 2, 10:29 pm, Ikai L (Google) ika...@google.com wrote: Oy, this is what I get for not running code before posting it. Good looking out. On Tue, Feb 2, 2010 at 1:06 AM, datanucleus andy_jeffer...@yahoo.comwrote: query.setFilter(aliases == alias); That is invalid JDOQL syntax; the spec is the spec and JDOQL uses Java syntax. If you have a collection field then the filter should be aliases.contains(:alias) The poster put the colon in front of a field name (wrong), and declared a parameter as a variable (wrong). -- You received this message because you are subscribed to the Google Groups Google App Engine for Java group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.comgoogle-appengine-java%2B unsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en. -- Ikai Lan Developer Programs Engineer, Google App Enginehttp://googleappengine.blogspot.com|http://twitter.com/app_engine -- You received this message because you are subscribed to the Google Groups Google App Engine for Java group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
Re: [appengine-java] Re: Unsupported method contains while parsing expression:
Oy, this is what I get for not running code before posting it. Good looking out. On Tue, Feb 2, 2010 at 1:06 AM, datanucleus andy_jeffer...@yahoo.comwrote: query.setFilter(aliases == alias); That is invalid JDOQL syntax; the spec is the spec and JDOQL uses Java syntax. If you have a collection field then the filter should be aliases.contains(:alias) The poster put the colon in front of a field name (wrong), and declared a parameter as a variable (wrong). -- You received this message because you are subscribed to the Google Groups Google App Engine for Java group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.comgoogle-appengine-java%2bunsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en. -- Ikai Lan Developer Programs Engineer, Google App Engine http://googleappengine.blogspot.com | http://twitter.com/app_engine -- You received this message because you are subscribed to the Google Groups Google App Engine for Java group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
