I don't know if it's politic to send you email, but there is no Issue panel in
MetaModel's page on Github.
I've searched http://wiki.apache.org/metamodel/ with keyword "subquery", but
there is no result.译
I used to think if org.apache.metamodel.query.Query implements
org.apache.metamodel.schema.Table so I can do it like
dataContext.query().from(query), but it doesn't.
So I ask you how to do SubQuery in MetaModel.
In fact, I think the api of MetaModel can do a big change, like this:
TableLike = dataContext.query().from(TableLike... tables)
TableLike = dataContext.query().from(TableLike... tables).select(ColumnLike...
columns)
Filter = ColumnLike.operator(value)dataContext.query().from(TableLike...
tables).select(ColumnLike... columns).where(Filter...
filters).groupBy(ColumnLike... columns)
There are 3 main interfaces: TableLike , ColumnLike , Filter.
query, table, view are all TableLike;column in a query, column in a table are
all ColumnLike;filter is generated by ColumnLike...
By the way, if the Column Type can be represent by the class of Column, things
may be better.Maybe we can't make Column a generic class like Column<Integer>,
because we can't use it like Column<Person>(wait, wait, wait, maybe we can if
Person is just a java bean.... WOW, it seems that TableLike is in fact a
subclass of ColumnLike).... So we can have some simple column class like
IntegerColumn, StringColumn, DateColumn.....
AgainI don't know if it's politic to send you email. If it's not, ignore the
email. If it doesn't matter, will you reply me?
