Using querydsl with undetermined schema with mongo and spring boot
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0
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I've the following mapping:
@Document
class Event {
Object carbonCopy;
}
carbonCopy has several attributes and its schema is undetermined - various events can have different set of attributes. Assume that carbonCopy has status field. I need to find all Events that have carbonCopy.status equal to NEW. Is it possible with query DSL, how? I'm struggling with various mixes of Path and Expression instances to no avail.
java mongodb spring-boot spring-data-mongodb querydsl
asked Nov 20 at 12:20
Opal
52k20102117
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up vote
0
down vote
favorite
I've the following mapping:
@Document
class Event {
Object carbonCopy;
}
carbonCopy has several attributes and its schema is undetermined - various events can have different set of attributes. Assume that carbonCopy has status field. I need to find all Events that have carbonCopy.status equal to NEW. Is it possible with query DSL, how? I'm struggling with various mixes of Path and Expression instances to no avail.
java mongodb spring-boot spring-data-mongodb querydsl
asked Nov 20 at 12:20
Opal
52k20102117
Can you please look into below link may it help you. querydsl.com/static/querydsl/2.1.0/reference/html/ch02s07.html
– Raheela Aslam
Nov 20 at 12:24
@RaheelaAslam have you checked the link before suggesting it? Is there any particular section I should pay attention to?
– Opal
Nov 20 at 12:25
add a comment |
up vote
0
down vote
favorite
up vote
0
down vote
favorite
I've the following mapping:
@Document
class Event {
Object carbonCopy;
}
carbonCopy has several attributes and its schema is undetermined - various events can have different set of attributes. Assume that carbonCopy has status field. I need to find all Events that have carbonCopy.status equal to NEW. Is it possible with query DSL, how? I'm struggling with various mixes of Path and Expression instances to no avail.
java mongodb spring-boot spring-data-mongodb querydsl
asked Nov 20 at 12:20
Opal
52k20102117
I've the following mapping:
@Document
class Event {
Object carbonCopy;
}
carbonCopy has several attributes and its schema is undetermined - various events can have different set of attributes. Assume that carbonCopy has status field. I need to find all Events that have carbonCopy.status equal to NEW. Is it possible with query DSL, how? I'm struggling with various mixes of Path and Expression instances to no avail.
java mongodb spring-boot spring-data-mongodb querydsl
java mongodb spring-boot spring-data-mongodb querydsl
asked Nov 20 at 12:20
Opal
52k20102117
asked Nov 20 at 12:20
Opal
52k20102117
asked Nov 20 at 12:20
Opal
52k20102117
asked Nov 20 at 12:20
Opal
52k20102117
asked Nov 20 at 12:20
Opal
52k20102117
52k20102117
Can you please look into below link may it help you. querydsl.com/static/querydsl/2.1.0/reference/html/ch02s07.html
– Raheela Aslam
Nov 20 at 12:24
@RaheelaAslam have you checked the link before suggesting it? Is there any particular section I should pay attention to?
– Opal
Nov 20 at 12:25
add a comment |
Can you please look into below link may it help you. querydsl.com/static/querydsl/2.1.0/reference/html/ch02s07.html
– Raheela Aslam
Nov 20 at 12:24
@RaheelaAslam have you checked the link before suggesting it? Is there any particular section I should pay attention to?
– Opal
Nov 20 at 12:25
Can you please look into below link may it help you. querydsl.com/static/querydsl/2.1.0/reference/html/ch02s07.html
– Raheela Aslam
Nov 20 at 12:24
Can you please look into below link may it help you. querydsl.com/static/querydsl/2.1.0/reference/html/ch02s07.html
– Raheela Aslam
Nov 20 at 12:24
@RaheelaAslam have you checked the link before suggesting it? Is there any particular section I should pay attention to?
– Opal
Nov 20 at 12:25
@RaheelaAslam have you checked the link before suggesting it? Is there any particular section I should pay attention to?
– Opal
Nov 20 at 12:25
add a comment |
2 Answers
2
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up vote
2
down vote
You can use similar like
in terminal
db.events.find({"carbonCopy.status":"NEW"})
in termilnal if you need existance as well
db.events.find({carbonCopy.status:{"$exists":true}},"carbonCopy.status":"NEW"})
NOW when it comes to SDM
Criteria criteria = Criteria.where("carbonCopy.status").is("NEW")
Query query = new Query(criteria);
return mongoTemplate.findOne(query, Event.class);
Criteria criteria = Criteria.where("carbonCopy.status").is("NEW").And("carbonCopy.status").exists(true)
Query query = new Query(criteria);
return mongoTemplate.findOne(query, Event.class);
answered Nov 22 at 5:21
Vipul
429312
add a comment |
up vote
0
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accepted
It's possible with the following piece of code:
QEvent event = QEvent.event;
PathBuilder<Event> query = new PathBuilder<Event>(Event.class, "entity");
BooleanExpression expr = query.getMap("objectCarbonCopy", String.class, String.class).get("status").eq(Expressions.constant("NEW"));
Where QEvent is querydsl generated class.
answered Nov 21 at 10:02
Opal
52k20102117
add a comment |
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2 Answers
2
active
oldest
votes
2 Answers
2
active
oldest
votes
active
oldest
votes
active
oldest
votes
up vote
2
down vote
You can use similar like
in terminal
db.events.find({"carbonCopy.status":"NEW"})
in termilnal if you need existance as well
db.events.find({carbonCopy.status:{"$exists":true}},"carbonCopy.status":"NEW"})
NOW when it comes to SDM
Criteria criteria = Criteria.where("carbonCopy.status").is("NEW")
Query query = new Query(criteria);
return mongoTemplate.findOne(query, Event.class);
Criteria criteria = Criteria.where("carbonCopy.status").is("NEW").And("carbonCopy.status").exists(true)
Query query = new Query(criteria);
return mongoTemplate.findOne(query, Event.class);
answered Nov 22 at 5:21
Vipul
429312
add a comment |
up vote
2
down vote
You can use similar like
in terminal
db.events.find({"carbonCopy.status":"NEW"})
in termilnal if you need existance as well
db.events.find({carbonCopy.status:{"$exists":true}},"carbonCopy.status":"NEW"})
NOW when it comes to SDM
Criteria criteria = Criteria.where("carbonCopy.status").is("NEW")
Query query = new Query(criteria);
return mongoTemplate.findOne(query, Event.class);
Criteria criteria = Criteria.where("carbonCopy.status").is("NEW").And("carbonCopy.status").exists(true)
Query query = new Query(criteria);
return mongoTemplate.findOne(query, Event.class);
answered Nov 22 at 5:21
Vipul
429312
add a comment |
up vote
2
down vote
up vote
2
down vote
You can use similar like
in terminal
db.events.find({"carbonCopy.status":"NEW"})
in termilnal if you need existance as well
db.events.find({carbonCopy.status:{"$exists":true}},"carbonCopy.status":"NEW"})
NOW when it comes to SDM
Criteria criteria = Criteria.where("carbonCopy.status").is("NEW")
Query query = new Query(criteria);
return mongoTemplate.findOne(query, Event.class);
Criteria criteria = Criteria.where("carbonCopy.status").is("NEW").And("carbonCopy.status").exists(true)
Query query = new Query(criteria);
return mongoTemplate.findOne(query, Event.class);
answered Nov 22 at 5:21
Vipul
429312
You can use similar like
in terminal
db.events.find({"carbonCopy.status":"NEW"})
in termilnal if you need existance as well
db.events.find({carbonCopy.status:{"$exists":true}},"carbonCopy.status":"NEW"})
NOW when it comes to SDM
Criteria criteria = Criteria.where("carbonCopy.status").is("NEW")
Query query = new Query(criteria);
return mongoTemplate.findOne(query, Event.class);
Criteria criteria = Criteria.where("carbonCopy.status").is("NEW").And("carbonCopy.status").exists(true)
Query query = new Query(criteria);
return mongoTemplate.findOne(query, Event.class);
answered Nov 22 at 5:21
Vipul
429312
answered Nov 22 at 5:21
Vipul
429312
answered Nov 22 at 5:21
Vipul
429312
answered Nov 22 at 5:21
Vipul
429312
429312
add a comment |
add a comment |
up vote
0
down vote
accepted
It's possible with the following piece of code:
QEvent event = QEvent.event;
PathBuilder<Event> query = new PathBuilder<Event>(Event.class, "entity");
BooleanExpression expr = query.getMap("objectCarbonCopy", String.class, String.class).get("status").eq(Expressions.constant("NEW"));
Where QEvent is querydsl generated class.
answered Nov 21 at 10:02
Opal
52k20102117
add a comment |
up vote
0
down vote
accepted
It's possible with the following piece of code:
QEvent event = QEvent.event;
PathBuilder<Event> query = new PathBuilder<Event>(Event.class, "entity");
BooleanExpression expr = query.getMap("objectCarbonCopy", String.class, String.class).get("status").eq(Expressions.constant("NEW"));
Where QEvent is querydsl generated class.
answered Nov 21 at 10:02
Opal
52k20102117
add a comment |
up vote
0
down vote
accepted
up vote
0
down vote
accepted
It's possible with the following piece of code:
QEvent event = QEvent.event;
PathBuilder<Event> query = new PathBuilder<Event>(Event.class, "entity");
BooleanExpression expr = query.getMap("objectCarbonCopy", String.class, String.class).get("status").eq(Expressions.constant("NEW"));
Where QEvent is querydsl generated class.
answered Nov 21 at 10:02
Opal
52k20102117
It's possible with the following piece of code:
QEvent event = QEvent.event;
PathBuilder<Event> query = new PathBuilder<Event>(Event.class, "entity");
BooleanExpression expr = query.getMap("objectCarbonCopy", String.class, String.class).get("status").eq(Expressions.constant("NEW"));
Where QEvent is querydsl generated class.
answered Nov 21 at 10:02
Opal
52k20102117
answered Nov 21 at 10:02
Opal
52k20102117
answered Nov 21 at 10:02
Opal
52k20102117
answered Nov 21 at 10:02
Opal
52k20102117
52k20102117
add a comment |
add a comment |
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Can you please look into below link may it help you. querydsl.com/static/querydsl/2.1.0/reference/html/ch02s07.html
– Raheela Aslam
Nov 20 at 12:24
@RaheelaAslam have you checked the link before suggesting it? Is there any particular section I should pay attention to?
– Opal
Nov 20 at 12:25