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Merged
ricardohsmello merged 15 commits into from
May 11, 2026
Merged

Feature/code improvements #4

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469f70e
Including sl4j import for removing unnecessary log
ricardohsmello Apr 30, 2026
d73c48b
chore: upgrade MongoDB Java driver and remove unnecessary SLF4J logs
ricardohsmello May 8, 2026
a865451
Simplify $match aggregation example using exact title filter
ricardohsmello May 8, 2026
0fc4e77
Add $limit and $project aggregation example
ricardohsmello May 8, 2026
19d5ff2
Add dedicated $project aggregation example and explanation
ricardohsmello May 8, 2026
c44f151
refactor: simplify aggregation limit examples and improve descriptions
ricardohsmello May 8, 2026
38e22e9
refactor: improve aggregation sort example and description
ricardohsmello May 8, 2026
1f84f7d
refactor: simplify challenge boilerplate so learners can focus on pip…
ricardohsmello May 8, 2026
59f0f5c
Including simple comments
ricardohsmello May 8, 2026
0f95084
refactor: improve array aggregation examples and explanatory notes
ricardohsmello May 8, 2026
3e771dd
refactor: improve unwind example readability and projection style
ricardohsmello May 8, 2026
74f3144
Including books collection
ricardohsmello May 8, 2026
8fa7e65
refactor: improve lookup challenge scaffolding and notebook guidance
ricardohsmello May 8, 2026
d5c972a
refactor: improve group example wording and formatting
ricardohsmello May 8, 2026
b5be334
refactor: improve group challenges and add clearer aggregation hints
ricardohsmello May 8, 2026
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Simplify $match aggregation example using exact title filter
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@ricardohsmello
ricardohsmello committed May 8, 2026
commit a865451b9e713176e63b16f4f313654772c30ad9
9 changes: 5 additions & 4 deletions java/100_aggregation_pipeline_match.ipynb
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Original file line number Diff line number Diff line change
Expand Up @@ -49,6 +49,7 @@
"import com.mongodb.client.model.Projections;\n",
"\n",
"import static com.mongodb.client.model.Filters.gt;\n",
"import static com.mongodb.client.model.Filters.eq;\n",
"import static com.mongodb.client.model.Projections.include;\n",
"import static com.mongodb.client.model.Projections.excludeId;\n",
"import static com.mongodb.client.model.Projections.fields;\n",
Expand Down Expand Up @@ -93,7 +94,7 @@
"source": [
"## $match\n",
"\n",
"We’ll return all books published after 2010 using $match for filtering and $project to return only specific fields."
"We’ll use $match to return only the book with the title \"Treasure of the Sun\"."
]
},
{
Expand All @@ -107,14 +108,14 @@
},
"outputs": [],
"source": [
"Bson yearFilter = gt(\"year\", 2010);\n",
"Bson matchStage = match(yearFilter);\n",
"\n",
"Bson titleFilter = eq(\"title\", \"Treasure of the Sun\");\n",
"Bson matchStage = match(titleFilter);\n",
"List<Bson> aggregationPipeline = List.of(matchStage);\n",
"\n",
"AggregateIterable<Document> result = books.aggregate(aggregationPipeline);\n",
"\n",
"// Iterate through the results\n",
"\n",
"for (Document doc : result) {\n",
" System.out.println(\"book: \" + doc.toJson());\n",
"}"
Expand Down