…thanks; a new snapshot is available [1]. Best, Christian
[1] https://files.basex.org/releases/latest/
On Tue, Nov 15, 2022 at 7:40 PM Tim Thompson timathom@gmail.com wrote:
Sure, attached are two command scripts: one that fails (when dumping store contents) and one that passes (when adding a value directly).
Thanks, Tim
-- Tim A. Thompson (he, him) Librarian for Applied Metadata Research www.linkedin.com/in/timathompson timothy.thompson@yale.edu
El mar, 15 nov 2022 a la(s) 13:21, Christian Grün ( christian.gruen@gmail.com) escribió:
Wow. I’ll look into that soon. Do you think you can provide me with a little test case (e.g., a BaseX command script) to reproduce this?
Tim Thompson timathom@gmail.com schrieb am Di., 15. Nov. 2022, 19:16:
Thanks! I just tried to dump the contents of the store to a database value:
db:put-value( "entries", array { store:keys() ! store:get(.) (: sequence of arrays :) }, "x" )
But when I query with db:get-value("entries", "x"), I get a "Not Expected" error. Should this kind of operation be possible?
Error: Improper use? Potential bug? Your feedback is welcome: Contact: basex-talk@mailman.uni-konstanz.de Version: BaseX 10.3 beta Java: Azul Systems, Inc., 11.0.16 OS: Mac OS X, aarch64 Stack Trace: java.lang.RuntimeException: Not Expected. at org.basex.util.Util.notExpected(Util.java:54) at org.basex.query.value.type.AtomType.read(AtomType.java:983) at org.basex.core.Store.read(Store.java:315) at org.basex.query.func.db.DbGetValue.resource(DbGetValue.java:70) at org.basex.query.func.db.DbGetValue.value(DbGetValue.java:46) at org.basex.query.func.db.DbGetValue.value(DbGetValue.java:27) at org.basex.query.expr.ParseExpr.iter(ParseExpr.java:46) at org.basex.query.scope.MainModule.iter(MainModule.java:48) at org.basex.query.QueryContext.lambda$4(QueryContext.java:354) at org.basex.query.QueryContext.run(QueryContext.java:763) at org.basex.query.QueryContext.iter(QueryContext.java:354) at org.basex.query.QueryContext.lambda$6(QueryContext.java:601) at org.basex.query.QueryContext.run(QueryContext.java:763) at org.basex.query.QueryContext.cache(QueryContext.java:598) at org.basex.query.QueryProcessor.cache(QueryProcessor.java:118) at org.basex.core.cmd.AQuery.run(AQuery.java:82) at org.basex.core.Command.run(Command.java:233) at org.basex.core.Command.execute(Command.java:93) at org.basex.gui.GUI.execute(GUI.java:415) at org.basex.gui.GUI.lambda$5(GUI.java:360) at java.base/java.lang.Thread.run(Thread.java:829)
-- Tim A. Thompson (he, him) Librarian for Applied Metadata Research www.linkedin.com/in/timathompson timothy.thompson@yale.edu
El mar, 15 nov 2022 a la(s) 13:07, Christian Grün ( christian.gruen@gmail.com) escribió:
You'll be safe: Updates with db:put-value will be managed via the Pending Update List [1], and future queries that operate on the same database will be queued until the update is finished.
[1] https://docs.basex.org/wiki/XQuery_Update#Pending_Update_List
Tim Thompson timathom@gmail.com schrieb am Di., 15. Nov. 2022, 18:50:
That's perfect--I knew I was missing something :)
Are db:get-value and db:put-value side-effecting as well?
Thanks, Tim
-- Tim A. Thompson (he, him) Librarian for Applied Metadata Research www.linkedin.com/in/timathompson timothy.thompson@yale.edu
El mar, 15 nov 2022 a la(s) 12:28, Christian Grün ( christian.gruen@gmail.com) escribió:
Hi Tim,
> Using the store module, is it possible to read and merge multiple custom stores into main memory
We could add an argument (or options) to file:read to allow entries to be added to an existing main-memory store.
> set a particular store as context for a query?
The recommended approach is to invoke store:read before any other operation in the query. Please note, however, that the store will be globally available. If a second query runs on the same server and opens another store, it will change the behavior of the first query. For such use cases, it’s better to use databases.
> Or, do I need to serialize the stores, e.g., as JSON and then create databases for them?
You could have a look at the new db:get-value and db:put-value functions [1]: These functions have particularly been designed to organize XQuery items in databases, making casts to JSON or XML obsolete.
Hope this helps, Christian
[1] https://docs.basex.org/wiki/Database_Module#db:get-value