hilo Questions
5
Solved
If I start using a HiLo generator to assign ID's for a table, and then decide to increase or decrease the capacity (i.e. the maximum 'lo' value), will this cause collisions with the already-assigne...
0
This article (https://vladmihalcea.com/hibernate-hidden-gem-the-pooled-lo-optimizer/) gives a good explanation on the differences for the hilo, pooled and pooled-lo optimizers for sequence generato...
6
Solved
We all know the default behaviour of Hibernate when using @SequenceGenerator - it increases real database sequence by one, multiple this value by 50 (default allocationSize value) - and then uses t...
5
Solved
What's the Hi/Lo algorithm?
I've found this in the NHibernate documentation (it's one method to generate unique keys, section 5.1.4.2), but I haven't found a good explanation of how it works.
I k...
Armor asked 11/11, 2008 at 20:53
5
Has anyone implemented a HiLO key generator for the Entity Framework.
Read more about HiLo here:
I recommend that you read http://fabiomaulo.blogspot.com/2009/02/nh210-generators-behavior-explaine...
Chaeta asked 2/7, 2010 at 8:9
5
Solved
I work with a database that depends heavily on identity columns. However as we have now moved all applications over to NHibernate I wanted to look into using HiLo as seems to be recommended with NH...
Fabre asked 7/9, 2009 at 16:25
1
Solved
In my current design, I have HiLo setup to have a MaxLo of 1000. Is this being excessive? Could I reduce this number to something like 100 and still be ok?
public class HiLoConvention : IIdConvent...
Serrate asked 9/5, 2011 at 14:24
2
I've seen some docs by Fabio Maulo that shows the following params:
<id name="Id" type="Int64" column="cat_id">
<generator class="hilo">
<param name="table">hi_value</param&...
Gametocyte asked 15/10, 2010 at 13:54
1
Solved
Is it possible to switch from HiLo to GUID.comb? As far as I can tell, the latter combines the advantage of HiLo, namely managing Ids client-side instead of needing a call to the DB for getting a n...
Astor asked 1/2, 2011 at 14:3
1
Solved
I'm about to switch some of my entities from identity to hilo id-generator.
I'm don't have a clue how the tables holding the next-high values should be designed.
should I use a single table for ...
Devilment asked 3/2, 2010 at 14:9
2
Solved
I'm currently using the hilo id generator for my classes but have just been using the minimal of settings eg
<class name="ClassA">
<id name="Id" column="id" unsaved-value="0">
<generat...
Beckiebeckley asked 28/8, 2009 at 8:42
1
Solved
I've genereated a schema for my (SQL 2005) db using SchemaExport, and it's created a table
CREATE TABLE [dbo].[hibernate_unique_key](
[next_hi] [int] NULL
) ON [PRIMARY]
When I try to add an en...
Remittent asked 30/6, 2009 at 21:13
1
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