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https://issues.apache.org/jira/browse/IGNITE-2906?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Krome Plasma updated IGNITE-2906:
---------------------------------
Description:
I've had discussion about this on Apache Ignite Users.
http://apache-ignite-users.70518.x6.nabble.com/Indexing-Querying-of-child-element-fields-td1704.html#a1734
The problem occurs when you want to index a non-primitive type that have same
names of variables as the enclosing type, better described on forum above. As a
short example:
Let's say we want to index:
public class Person
{
@QuerySqlField
long id;
@QuerySqlField
PersonData personData;
}
public class PersonData
{
@QuerySqlField
long id;
}
This will not work as it will detect indexes/query fields with same names for
index Person.id and PersonData.id because the names are flattened to simply
'id'.
I am attaching a simple patch that resolves this issue. We've been running this
for (3 months now) and found no problems. However we are using annotations and
not XML. I am not sure the patch completely solves the problem for XML based
configuration.
was:
I've had discussion about this on Apache Ignite Users.
http://apache-ignite-users.70518.x6.nabble.com/Indexing-Querying-of-child-element-fields-td1704.html#a1734
The problem occurs when you want to index a non-primitive type that have same
names of variables as the encloding type, better described on forum above. As a
short example:
Let's say we want to index:
public class Person
{
@QuerySqlField
long id;
@QuerySqlField
PersonData personData;
}
public class PersonData
{
@QuerySqlField
long id;
}
This will not work as it will detect indexes/query fields with same names for
index Person.id and PersonData.id because the names are flattened to simply
'id'.
I am attaching a simple patch that resolves this issue. We've been running this
for (3 months now) and found no problems. However we are using annotations and
not XML. I am not sure the patch completely solves the problem for XML based
configuration.
> Embedded / child element types indexing/queryfields (non-flat)
> --------------------------------------------------------------
>
> Key: IGNITE-2906
> URL: https://issues.apache.org/jira/browse/IGNITE-2906
> Project: Ignite
> Issue Type: Improvement
> Components: cache, data structures, general, SQL
> Reporter: Krome Plasma
> Attachments: indexing.patch
>
>
> I've had discussion about this on Apache Ignite Users.
> http://apache-ignite-users.70518.x6.nabble.com/Indexing-Querying-of-child-element-fields-td1704.html#a1734
> The problem occurs when you want to index a non-primitive type that have same
> names of variables as the enclosing type, better described on forum above. As
> a short example:
> Let's say we want to index:
> public class Person
> {
> @QuerySqlField
> long id;
> @QuerySqlField
> PersonData personData;
> }
> public class PersonData
> {
> @QuerySqlField
> long id;
> }
> This will not work as it will detect indexes/query fields with same names for
> index Person.id and PersonData.id because the names are flattened to simply
> 'id'.
> I am attaching a simple patch that resolves this issue. We've been running
> this for (3 months now) and found no problems. However we are using
> annotations and not XML. I am not sure the patch completely solves the
> problem for XML based configuration.
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