Example code for documentation

spring-data-mongodb/src/test/java/org/springframework/data/document/mongodb/PersonExample.java

@@ -0,0 +1,32 @@
+package org.springframework.data.document.mongodb;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import static org.springframework.data.document.mongodb.query.Criteria.where;
+import org.springframework.data.document.mongodb.query.Query;
+import static org.springframework.data.document.mongodb.query.Query.query;
+import org.springframework.data.document.mongodb.query.Update;
+import static org.springframework.data.document.mongodb.query.Update.update;
+
+public class PersonExample {
+
+  @Autowired
+  private MongoOperations mongoOps;
+  
+  public void doWork() {
+    Person p = new Person();
+    p.setFirstName("Sven");
+    p.setAge(22);
+    
+    mongoOps.save(p);
+    
+    System.out.println(p.getId());
+    
+    mongoOps.updateFirst(new Query(where("firstName").is("Sven")), new Update().set("age", 24));
+    
+    mongoOps.updateFirst(new Query(where("firstName").is("Sven")), update("age", 24));
+    
+    mongoOps.updateFirst(query(where("firstName").is("Sven")), update("age", 24));
+  }
+  
+  
+}