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Diffstat (limited to 'src/mongo/client/examples/tutorial.cpp')
-rw-r--r-- | src/mongo/client/examples/tutorial.cpp | 71 |
1 files changed, 71 insertions, 0 deletions
diff --git a/src/mongo/client/examples/tutorial.cpp b/src/mongo/client/examples/tutorial.cpp new file mode 100644 index 00000000000..aa5ad02b55d --- /dev/null +++ b/src/mongo/client/examples/tutorial.cpp @@ -0,0 +1,71 @@ +//tutorial.cpp + +/* Copyright 2009 10gen Inc. + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include <iostream> +#include "../../client/dbclient.h" + +// g++ tutorial.cpp -lmongoclient -lboost_thread -lboost_filesystem -o tutorial +// Might need a variant of the above compile line. This worked for me: +//g++ tutorial.cpp -L[mongo directory] -L/opt/local/lib -lmongoclient -lboost_thread-mt -lboost_filesystem -lboost_system -I/opt/local/include -o tutorial + +using namespace mongo; + +void printIfAge(DBClientConnection& c, int age) { + auto_ptr<DBClientCursor> cursor = c.query("tutorial.persons", QUERY( "age" << age ).sort("name") ); + while( cursor->more() ) { + BSONObj p = cursor->next(); + cout << p.getStringField("name") << endl; + } +} + +void run() { + DBClientConnection c; + c.connect("localhost"); //"192.168.58.1"); + cout << "connected ok" << endl; + BSONObj p = BSON( "name" << "Joe" << "age" << 33 ); + c.insert("tutorial.persons", p); + p = BSON( "name" << "Jane" << "age" << 40 ); + c.insert("tutorial.persons", p); + p = BSON( "name" << "Abe" << "age" << 33 ); + c.insert("tutorial.persons", p); + p = BSON( "name" << "Methuselah" << "age" << BSONNULL); + c.insert("tutorial.persons", p); + p = BSON( "name" << "Samantha" << "age" << 21 << "city" << "Los Angeles" << "state" << "CA" ); + c.insert("tutorial.persons", p); + + c.ensureIndex("tutorial.persons", fromjson("{age:1}")); + + cout << "count:" << c.count("tutorial.persons") << endl; + + auto_ptr<DBClientCursor> cursor = c.query("tutorial.persons", BSONObj()); + while( cursor->more() ) { + cout << cursor->next().toString() << endl; + } + + cout << "\nprintifage:\n"; + printIfAge(c, 33); +} + +int main() { + try { + run(); + } + catch( DBException &e ) { + cout << "caught " << e.what() << endl; + } + return 0; +} |