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DATAMONGO-1870 - Consider skip/limit on MongoOperations.remove(Query, Class).

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We now use _id lookup for remove operations that query with limit or skip parameters. This allows more fine grained control over documents removed.

Original pull request: #532.
Related pull request: #531.
This commit is contained in:
Christoph Strobl
2018-02-12 13:24:53 +01:00
committed by Mark Paluch
parent 4ebcac19bc
commit c873e49d71
8 changed files with 156 additions and 70 deletions
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20
src/main/asciidoc/reference/mongodb.adoc
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@@ -951,7 +951,25 @@ assertThat(p.getAge(), is(1));
You can use several overloaded methods to remove an object from the database.
* *remove* Remove the given document based on one of the following: a specific object instance, a query document criteria combined with a class or a query document criteria combined with a specific collection name.
====
[source,java]
----
template.remove(tywin, "GOT"); <1>
template.remove(query(where("lastname").is("lannister")), "GOT"); <2>
template.remove(new Query().limit(3), "GOT"); <3>
template.findAllAndRemove(query(where("lastname").is("lannister"), "GOT"); <4>
template.findAllAndRemove(new Query().limit(3), "GOT"); <5>
----
<1> Remove a single entity via its `id` from the associated collection.
<2> Remove all documents matching the criteria of the query from the `GOT` collection.
<3> Rewmove the first 3 documents in the `GOT` collection. Unlike <2> the documents to remove are identified via their `id` using the given query applying `sort`, `limit` and `skip` options and then removed all at once in a seperate step.
<4> Remove all documents matching the criteria of the query from the `GOT` collection. Unlike <3> documents do not get deleted in a batch but one by one.
<5> Remove the first 3 documents in the `GOT` collection. Unlike <3> documents do not get deleted in a batch but one by one.
====
[[mongo-template.optimistic-locking]]
=== Optimistic locking