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Search found 7 results on 1 pages for 'armandino'.

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  • JPA/Hibernate and MySQL transaction isolation level

    - by armandino
    I have a native query that does a batch insert into a MySQL database: String sql = "insert into t1 (a, b) select x, y from t2 where x = 'foo'"; EntityTransaction tx = entityManager.getTransaction(); try { tx.begin(); int rowCount = entityManager.createNativeQuery(sql).executeUpdate(); tx.commit(); return rowCount; } catch(Exception ex) { tx.rollback(); log.error(...); } This query causes a deadlock: while it reads from t2 with insert .. select, another process tries to insert a row into t2. I don't care about the consistency of reads from t2 when doing an insert .. select and want to set the transaction isolation level to READ_UNCOMMITTED. How do I go about setting it in JPA backed by Hibernate?

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  • Grails JSON array

    - by armandino
    I'm converting a list of Foo objects to a JSON string. I need to parse the JSON string back into a list of Foos. However in the following example, parsing gives me a list of JSONObjects instead of Foos. Example List list = [new Foo("first"), new Foo("second")] def jsonString = (list as JSON).toString() List parsedList = JSON.parse(jsonString) as List println parsedList[0].getClass() // org.codehaus.groovy.grails.web.json.JSONObject How can I parse it into Foos instead? Thanks in advance.

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  • Bash completion for Maven escapes colon

    - by armandino
    I added bash completion for Maven following the docs: http://maven.apache.org/guides/mini/guide-bash-m2-completion.html Everything works well except for goals that use a colon. For instance, instead of mvn eclipse:eclipse completion escapes the colon mvn eclipse\:eclipse Any suggestions how this can be fixed? I'm using Ubuntu 8.10 (2.6.27-17-generic) and $ bash -version GNU bash, version 3.2.39(1)-release (i486-pc-linux-gnu)

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  • Result set mapping in Grails / GORM

    - by armandino
    I want to map the result of a native SQL query to a simple bean in grails, similar to what the @SqlResultSetMapping annotation does. For example, given a query select x.foo, y.bar, z.baz from //etc... map the result to class FooBarBaz { String foo String bar String baz } Can anyone provide an example of how to do this in grails? Thanks in advance.

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  • How to define an alias in fish shell?

    - by armandino
    I would like to define some aliases in fish. Apparently it should be possible to define them in ~/.config/fish/functions but they don't get auto loaded when I restart the shell. Any ideas? p.s. if anyone is using or has used fish in the past I'd be interested to hear your comments as to whether it offers anything that bash does not.

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  • JPA and MySQL transaction isolation level

    - by armandino
    I have a native query that does a batch insert into a MySQL database: String sql = "insert into t1 (a, b) select x, y from t2 where x = 'foo'"; EntityTransaction tx = entityManager.getTransaction(); try { tx.begin(); int rowCount = entityManager.createNativeQuery(sql).executeUpdate(); tx.commit(); return rowCount; } catch(Exception ex) { tx.rollback(); log.error(...); } This query causes a deadlock: while it reads from t2 with insert .. select, another process tries to insert a row into t2. I don't care about the consistency of reads from t2 when doing an insert .. select and want to set the transaction isolation level to READ_UNCOMMITTED. How do I go about setting it in JPA?

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  • Bash script to replace spaces in file names

    - by armandino
    Can anyone recommend a safe solution to recursively replace spaces with underscores in file and directory names starting from a given root directory? For example, $ tree . |-- a dir | `-- file with spaces.txt `-- b dir |-- another file with spaces.txt `-- yet another file with spaces.pdf becomes $ tree . |-- a_dir | `-- file_with_spaces.txt `-- b_dir |-- another_file_with_spaces.txt `-- yet_another_file_with_spaces.pdf

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