Skip to content

changing the way to print messages to fix empty collection issue #2

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
ricardohsmello merged 2 commits into from
Apr 22, 2026
Merged

changing the way to print messages to fix empty collection issue #2

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
2 commits
Select commit Hold shift + click to select a range
34a8fbf
changing the way to print messages to fix empty collection issue
ricardohsmello Apr 22, 2026
5346b8d
Deleting unecessary line
ricardohsmello Apr 22, 2026
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
34 changes: 8 additions & 26 deletions java/10_find.ipynb
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -169,15 +169,9 @@
"outputs": [],
"source": [
"Bson booksAfter2008 = gt(\"year\", 2008);\n",
"FindIterable<Document> cursor = books.find(booksAfter2008);\n",
"\n",
"if (cursor != null) {\n",
" for(Document b: cursor) {\n",
" System.out.println(\"Book: \" + b.toJson());\n",
" }\n",
"} else {\n",
" System.out.println(\"Empty collection\");\n",
"}"
"books.find(booksAfter2008)\n",
" .forEach(b -> System.out.println(\"Book: \" + b.toJson())); "
]
},
{
Expand All @@ -202,15 +196,9 @@
"Bson booksWithLessThan50pages = lt(\"pages\", 50);\n",
"Bson showOnlyTitleAndPages = Projections.fields(Projections.include(\"title\", \"pages\"));\n",
"\n",
"FindIterable<Document> cursor = books.find(booksWithLessThan50pages).projection(showOnlyTitleAndPages);\n",
"\n",
"if (cursor != null) {\n",
" for(Document b: cursor) {\n",
" System.out.println(\"Book: \" + b.toJson());\n",
" }\n",
"} else {\n",
" System.out.println(\"Empty collection\");\n",
"}"
"books.find(booksWithLessThan50pages)\n",
" .projection(showOnlyTitleAndPages)\n",
" .forEach(b -> System.out.println(\"Book: \" + b.toJson()));"
]
},
{
Expand Down Expand Up @@ -238,15 +226,9 @@
" Projections.excludeId()\n",
");\n",
"\n",
"FindIterable<Document> cursor = books.find(booksWithLessThan50pages).projection(showOnlyTitleAndPagesNoId);\n",
"\n",
"if (cursor != null) {\n",
" for(Document b: cursor) {\n",
" System.out.println(\"Book: \" + b.toJson());\n",
" }\n",
"} else {\n",
" System.out.println(\"Empty collection\");\n",
"}"
"books.find(booksWithLessThan50pages)\n",
" .projection(showOnlyTitleAndPagesNoId)\n",
" .forEach(b -> System.out.println(\"Book: \" + b.toJson())); "
]
},
{
Expand Down
41 changes: 8 additions & 33 deletions java/11_find_arrays.ipynb
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -92,15 +92,8 @@
"outputs": [],
"source": [
"Bson poetryBooks = eq(\"genres\", \"Poetry\");\n",
"FindIterable<Document> cursor = books.find(poetryBooks);\n",
"\n",
"if (cursor != null) {\n",
" for(Document b: cursor) {\n",
" System.out.println(\"Book: \" + b.toJson());\n",
" }\n",
"} else {\n",
" System.out.println(\"Empty collection\");\n",
"}"
"books.find(poetryBooks)\n",
" .forEach(b -> System.out.println(\"Book: \" + b.toJson()));"
]
},
{
Expand All @@ -123,15 +116,9 @@
"outputs": [],
"source": [
"Bson familyLifeAndFictionBooks = all(\"genres\", \"Family Life\", \"Fiction\");\n",
"FindIterable<Document> cursor = books.find(familyLifeAndFictionBooks);\n",
"\n",
"if (cursor != null) {\n",
" for(Document b: cursor) {\n",
" System.out.println(\"Book: \" + b.toJson());\n",
" }\n",
"} else {\n",
" System.out.println(\"Empty collection\");\n",
"}"
"books.find(familyLifeAndFictionBooks)\n",
" .forEach(b -> System.out.println(\"Book: \" + b.toJson()));"
]
},
{
Expand All @@ -154,15 +141,9 @@
"outputs": [],
"source": [
"Bson familyLifeOrFictionBooks = in(\"genres\", \"Family Life\", \"Fiction\");\n",
"FindIterable<Document> cursor = books.find(familyLifeOrFictionBooks);\n",
"\n",
"if (cursor != null) {\n",
" for(Document b: cursor) {\n",
" System.out.println(\"Book: \" + b.toJson());\n",
" }\n",
"} else {\n",
" System.out.println(\"Empty collection\");\n",
"}"
"books.find(familyLifeOrFictionBooks)\n",
" .forEach(b -> System.out.println(\"Book: \" + b.toJson()));"
]
},
{
Expand All @@ -187,15 +168,9 @@
"outputs": [],
"source": [
"Bson poetryAndFictionBooks = eq(\"genres\", Arrays.asList(\"Poetry\", \"Fiction\"));\n",
"FindIterable<Document> cursor = books.find(poetryAndFictionBooks);\n",
"\n",
"if (cursor != null) {\n",
" for(Document b: cursor) {\n",
" System.out.println(\"Book: \" + b.toJson());\n",
" }\n",
"} else {\n",
" System.out.println(\"Empty collection\");\n",
"}"
"books.find(poetryAndFictionBooks)\n",
" .forEach(b -> System.out.println(\"Book: \" + b.toJson()));"
]
}
],
Expand Down
22 changes: 4 additions & 18 deletions java/30_insert.ipynb
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -121,15 +121,8 @@
"source": [
"Document bookFrom1500 = new Document(\"year\", 1500);\n",
"\n",
"FindIterable<Document> cursor = books.find(bookFrom1500);\n",
"\n",
"if (cursor != null) {\n",
" for(Document b: cursor) {\n",
" System.out.println(\"Book: \" + b.toJson());\n",
" }\n",
"} else {\n",
" System.out.println(\"Empty collection\");\n",
"}"
"books.find(bookFrom1500)\n",
" .forEach(b -> System.out.println(\"Book: \" + b.toJson()));"
]
},
{
Expand All @@ -153,15 +146,8 @@
"source": [
"Document bookFrom1500 = new Document(\"_id\", new ObjectId(\"\")); // add the _id here!\n",
"\n",
"FindIterable<Document> cursor = books.find(bookFrom1500);\n",
"\n",
"if (cursor != null) {\n",
" for(Document b: cursor) {\n",
" System.out.println(\"Book: \" + b.toJson());\n",
" }\n",
"} else {\n",
" System.out.println(\"Empty collection\");\n",
"}"
"books.find(bookFrom1500)\n",
" .forEach(b -> System.out.println(\"Book: \" + b.toJson()));"
]
},
{
Expand Down
11 changes: 2 additions & 9 deletions java/40_delete.ipynb
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -121,15 +121,8 @@
"source": [
"Document bookFrom1500 = new Document(\"_id\", \"platero\"); \n",
"\n",
"FindIterable<Document> cursor = books.find(bookFrom1500);\n",
"\n",
"if (cursor != null) {\n",
" for(Document b: cursor) {\n",
" System.out.println(\"Book: \" + b.toJson());\n",
" }\n",
"} else {\n",
" System.out.println(\"Empty collection\");\n",
"}"
"books.find(bookFrom1500)\n",
" .forEach(b -> System.out.println(\"Book: \" + b.toJson())); "
]
},
{
Expand Down
11 changes: 2 additions & 9 deletions java/50_update.ipynb
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -121,15 +121,8 @@
"source": [
"Document elQuijote = new Document(\"_id\", \"quijote\"); \n",
"\n",
"FindIterable<Document> cursor = books.find(elQuijote);\n",
"\n",
"if (cursor != null) {\n",
" for(Document b: cursor) {\n",
" System.out.println(\"Book: \" + b.toJson());\n",
" }\n",
"} else {\n",
" System.out.println(\"Empty collection\");\n",
"}"
"books.find(elQuijote)\n",
" .forEach(b -> System.out.println(\"Book: \" + b.toJson())); "
]
},
{
Expand Down
Loading