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Trouble translating a MongoDB update query into spring boot

In my mongo database, I have the following document:
{
"_id" : ObjectId("5d1a08d2329a3c1374f176df"),
"associateID" : "1234567",
"associatePreferences" : [
{
"type" : "NOTIFICATION",
"serviceCode" : "service-code",
"eventCode" : "test-template",
"preferences" : [
"TEXT",
"EMAIL"
]
},
{
"type" : "URGENT_NOTIFICATION",
"serviceCode" : "service-code",
"eventCode" : "test-template",
"preferences" : [
"TEXT"
]
}
]
}
I am trying to add new elements to the preferences arrays based off of a given type, serviceCode, and eventCode. I was able to write this query in mongo as shown below:
db.user_communication_preferences.update(
{'associateID':'testassociate'},
{$addToSet:{'associatePreferences.$[element].preferences':"UPDATE"}},
{arrayFilters:[
{'element.serviceCode':'service-code',
'element.eventCode':'test-template',
'element.type':'NOTIFICATION'
}
]}
)
I am trying to translate this query into a java spring boot application. I saw some posts on here about doing this, but I didn't see any that incorporated arrayFilters. Can anyone lead me down the right path?

MongoDB java regexp not working with map nested in array

I have a structure like this:
{
"_id" : ObjectId("5a9da40e87661b3448b7dfe4"),
"userList" : [
{
"user" : {
"email" : "Arnold#mail.com",
"name" : "Arnold"
},
"key" : "ArnoldKey"
}
]
}
This query in Java works fine:
{'userList.user.email' : 'Arnold#mail.com'}
And this does not find anything:
{'userList.user.email':{ '$regex' : '.*arnold.*' , '$options' : 'i'}}
When I remove [] brackets from the structure it works fine, but It's not a solution for me. How should i query to get regex working? Any help appreciated.

You need to update your query like this:
db.getCollection('users').aggregate([{
$match: {
'userList.user.name': {
$regex: `.*arnold.*`,
$options: 'i'
}
}
}]);

How do I GroupBy in Spring Data Mongodb without Aggregation?

I have a data like below, and I want to group that data by the type, I'm using spring-data-mongodb .
[
{
"_id" : ObjectId("58a5518aace6132a88309d98"),
"type" : "SMS",
},
{
"_id" : ObjectId("58a5518bace6132a88309d99"),
"type" : "PUSH_NOTIFICATION",
},
{
"_id" : ObjectId("58a5519aace6132a0094d7df"),
"type" : "SMS",
},
{
"_id" : ObjectId("58a5519aace6132a0094d7e0"),
"type" : "PUSH_NOTIFICATION",
}
]
I'm using this method and won't work.
GroupByResults<Queuing> results = mongoTemplate.group("queuing",
GroupBy.key("type"), Queuing.class);
Anyone know the best and clear way to do this grouping using spring-data-mongodb.
Thanks.

This is the correct syntax for group operation.
GroupByResults<Queuing> results = mongoTemplate.group("queuing",
GroupBy.key("type").initialDocument("{}").reduceFunction("function(doc, prev) {}"),
Queuing.class);
More information here http://docs.spring.io/spring-data/mongodb/docs/current/reference/html/#mongo.group.example

How to search for a JSON field in elasticsearch using java?

This is JSON that I want to use for a search:
{
"_index" : "test", "_type" : "insert", "_id" : "3",
"_version" : 2, "found" : true,
"_source" : {
"ACCOUNT_ID" : "123",
"CONTACT_ID" : "ABC"
}
}
How do I search for all the JSON which have ACCOUNT_ID starting from 1?

You can use Wildcard in elasticsearch to search for an ACCOUNT_ID which starts from 1
GET index/_search
{
"query": {
"wildcard": {
"ACCOUNT_ID ": {
"value": "1*"
}
}
}
}
In Java, you can try something like this:
QueryBuilders.wildcardQuery("ACCOUNT_ID ", "1*");

From what i see in your comments you are trying to find id's starting with 1 for example. Well if your analyzer is the standard one the id "123" is tokenized like "123". You can use wildcard and search like '1*'. Be careful using wildcards cause it takes some memory.
See here: QueryString - Wildcard

How to get a a property in a property from a dbobject in java, mongodb

So I have a few dbobjects in my mongo database. Here's an example of one of the objects:
{ "_id" : { "$oid" : "525b048580c3fb0d62d2b6fc"} , "city" : "London" , "currentWeather" : [ { "cloudcover" : "25" , "humidity" : "82" , "observation_time" : "08:37 PM" , "precipMM" : "0.0" , "pressure" : "1008" , "temp_C" : "11" , "temp_F" : "52" , "visibility" : "10" , "weatherCode" : "113" , "weatherDesc" : [ { "value" : "Clear"}] , "weatherIconUrl" : [ { "value" : "http://cdn.worldweatheronline.net/images/wsymbols01_png_64/wsymbol_0008_clear_sky_night.png"}] , "winddir16Point" : "W" , "winddirDegree" : "280" , "windspeedKmph" : "19" , "windspeedMiles" : "12"}]}
Now, I need to get all the dbobjects in my database whose value is lower than a given "temp_C", I have used something like this:
BasicDBObject query = new BasicDBObject("temp_C", new BasicDBObject("&gt", graden));
But it's failing, and I think it is because the property is a subproperty of "currentWeather", yet I have no idea how to address this problem. I am using java to do this.

Looking at your document structure, you're trying to access a subdocument that lives inside an array in your document, so it's a bit more complicated than a standard query:
{ "_id" : { "$oid" : "525b048580c3fb0d62d2b6fc"} , <-- Document
"city" : "London" ,
"currentWeather" : [ <-- Array
{ "cloudcover" : "25", <-- Sub document
...etc...
"pressure" : "1008" ,
"temp_C" : "11",
"temp_F" : "52",
...etc...
}
]
}
In order to get to the nested object, you need to reference its position in the array (in this case, it's zero as it's the first element in the array) and then the field name in the sub document. So your query looks like this:
BasicDBObject query = new BasicDBObject("currentWeather.0.temp_C",
new BasicDBObject("$gt", 11));
Note you had two problems in your original query:
1) You need to reference currentWeather.0.temp_C
2) Your gt operator needs to start with a dollar sign not an ampersand.
Also, you said you wanted the query to return values lower than a given value, in which case you probably want $lt not $gt.

You can't directly use the value of the object of an array in a query. You can use aggregate framework of Mongo. Java Docs For Aggregate are here