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Posted to dev@ignite.apache.org by "Edward Kaganovich (JIRA)" <ji...@apache.org> on 2016/07/29 16:36:20 UTC
[jira] [Created] (IGNITE-3608) QuerySqlFunction methods with Object
type var args do not work
Edward Kaganovich created IGNITE-3608:
-----------------------------------------
Summary: QuerySqlFunction methods with Object type var args do not work
Key: IGNITE-3608
URL: https://issues.apache.org/jira/browse/IGNITE-3608
Project: Ignite
Issue Type: Bug
Components: cache, SQL
Affects Versions: 1.6, 1.5.0.final
Reporter: Edward Kaganovich
We often use interactive sql consoles to query caches. Several field values as well as _key in caches are stored as objects. To support queries by these fields we have registered a generic UDF that should let us instantiate certain types:
{code} @QuerySqlFunction Object t(String clz, Object... ctorArgs) throws Exception {
Class<?> c = Class.forName(keyClz);
Class<?>[] argTypes = new Class[ctorArgs.length];
for (int i=0; i < ctorArgs.length; i++) {
argTypes[i] = ctorArgs[i].getClass();
}
Constructor<?> ctor = c.getConstructor(argTypes);
return ctor.newInstance(ctorArgs);
}
{code}
Unfortunately Ignite fails to find and execute this function for the following SQL:
{color:blue}select t('java.lang.String', 'key20')){color}{color:red} <- Fails{color}
However, there is no problems with this function:
{code} @QuerySqlFunction
public static Object t1(String clz, String... ctorArgs) throws Exception {
return t(clz, ctorArgs);
}
{code}
{color:blue}select t1('java.lang.String', 'key20')){color}{color:green} <- Works as expected{color}
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