Muthu, You can use binary representation instead of POJO classes [1]. I think it can help you to avoid boilerplate code.
1. https://apacheignite.readme.io/docs/binary-marshaller#binaryobject-cache-api On Mon, Jun 5, 2017 at 10:18 PM, Muthu <muthu.kumara...@gmail.com> wrote: > Our current application code uses this view in several places. We use > MyBatis for ORM & it generates the DTO object & everything. The thought is > if there is way to transparently use Ignite cache for the view instead of > going to the database & let the rest of the application code use the same > DTO object as generated by MyBatis. > > Regards, > Muthu > > On Mon, Jun 5, 2017 at 12:10 PM, Muthu <muthu.kumara...@gmail.com> wrote: > >> >> Thanks Nikolai for the suggestion..one other thing i was thinking was to >> use continuous queries feature to create & update the new cache...but the >> problem is i still have to manually construct the resultant DTO object >> (manually set every field in the code). Since this is a view that joins two >> or three tables with lots of columns i was wondering if there was a way i >> can auto generate this boiler plate code... >> >> Regards, >> Muthu >> >> On Mon, Jun 5, 2017 at 5:44 AM, Nikolai Tikhonov <ntikho...@apache.org> >> wrote: >> >>> Hello, >>> >>> You need to implement your own CacheStore which will execute several >>> selects for one entry and combine two rows to one cache entry. >>> >>> On Thu, Jun 1, 2017 at 9:34 AM, Muthu <muthu.kumara...@gmail.com> wrote: >>> >>>> Hello Folks, >>>> >>>> Just to add a little bit more clarity & context...taking the >>>> Cross-Cache querying example from the ignite docs (copied below) if one >>>> were to select fields from both Person & Organization table caches in the >>>> select query what would be the elegant way to construct a domain POJO from >>>> the query result set instead of constructing it in the application code. >>>> >>>> >>>> - Cross-Cache SqlFieldsQuery >>>> <https://apacheignite.readme.io/docs/sql-queries> >>>> >>>> // In this example, suppose Person objects are stored in a // cache named >>>> 'personCache' and Organization objects // are stored in a cache named >>>> 'orgCache'.IgniteCache<Long, Person> personCache = >>>> ignite.cache("personCache"); >>>> // Select with join between Person and Organization to // get the names of >>>> all the employees of a specific organization.SqlFieldsQuery sql = new >>>> SqlFieldsQuery( >>>> "select Person.name " >>>> + "from Person as p, \"orgCache\".Organization as org where " >>>> + "p.orgId = org.id " >>>> + "and org.name = ?"); >>>> // Execute the query and obtain the query result cursor.try >>>> (QueryCursor<List<?>> cursor = personCache.query(sql.setArgs("Ignite"))) { >>>> for (List<?> row : cursor) >>>> System.out.println("Person name=" + row.get(0)); >>>> } >>>> >>>> >>>> Regards, >>>> Muthu >>>> >>>> -- The latest fact in modern technology isn't that machines will begin >>>> to think like people, but that people will begin to think like machines. >>>> -- Nothing exists except atoms and empty space, everything else is >>>> opinion - *Democritus* >>>> >>>> On Tue, May 30, 2017 at 4:26 PM, Muthu <muthu.kumara...@gmail.com> >>>> wrote: >>>> >>>>> >>>>> Just to clarify a little bit i don't want the view created on the >>>>> database but rather created & exposed purely in ignite. The individual >>>>> tables are already cached & available as L2 cache (MyBatis L2 cache) in >>>>> Ignite. >>>>> >>>>> Regards, >>>>> Muthu >>>>> >>>>> >>>>> On Tue, May 30, 2017 at 4:07 PM, Muthu <muthu.kumara...@gmail.com> >>>>> wrote: >>>>> >>>>>> Hi Folks, >>>>>> >>>>>> I need to combine two table caches to expose a database view type >>>>>> cache. Is there an elegant way to do this where i don't need to manually >>>>>> set/construct the view's POJO from the result of the join query? >>>>>> >>>>>> Regards, >>>>>> Muthu >>>>>> >>>>>> >>>>> >>>> >>> >> >
