本文整理了Java中org.mongodb.morphia.Datastore.find()方法的一些代码示例，展示了Datastore.find()的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。Datastore.find()方法的具体详情如下：
包路径：org.mongodb.morphia.Datastore
类名称：Datastore
方法名：find

Datastore.find介绍

[英]Find all instances by type
[中]按类型查找所有实例

代码示例

代码示例来源：origin: jooby-project/jooby

@Override
public void prePersist(final Object entity, final DBObject dbObj, final Mapper mapper) {
 MappedClass mclass = mapper.getMappedClass(entity);
 Field id = mclass.getIdField();
 if (id != null && id.getAnnotation(GeneratedValue.class) != null) {
  try {
   id.setAccessible(true);
   final String collName = gen.value(mclass.getClazz());
   final Query<StoredId> q = db.find(StoredId.class, "_id", collName);
   final UpdateOperations<StoredId> uOps = db.createUpdateOperations(StoredId.class)
     .inc("value");
   StoredId newId = db.findAndModify(q, uOps);
   if (newId == null) {
    newId = new StoredId(collName);
    db.save(newId);
   }
   id.set(entity, newId.value);
  } catch (Exception ex) {
   throw new IllegalStateException("Can't generate ID on " + mclass, ex);
  }
 }
}

代码示例来源：origin: com.github.sogyf/goja-mvt

/**
 * query mongod entity
 *
 * @param cls entity class
 * @param <T> paramter object cls
 * @return Query https://github.com/mongodb/morphia/wiki/Query
 */
public static <T> Query<T> query(Class<T> cls) {
  return _datastore.find(cls);
}

代码示例来源：origin: acmeair/acmeair

@Override
  public Long count() {
    return datastore.find(BookingImpl.class).countAll();
  }    
}

代码示例来源：origin: BlackLabs/play-morphia

public static Seq next(String name) {
  Datastore ds = MorphiaPlugin.ds();
  Query<Seq> q = ds.find(Seq.class, "_id", name);
  UpdateOperations<Seq> o = ds.createUpdateOperations(Seq.class).inc("value");
  Seq newId = ds.findAndModify(q, o);
  if (null == newId) {
    newId = new Seq(name);
    ds.save(newId);
  }
  return newId;
}

代码示例来源：origin: acmeair/acmeair

@Override
public Long count() {
  return datastore.find(CustomerImpl.class).countAll();
}

代码示例来源：origin: groupon/DotCi

public int assignNextBuildNumber(final DynamicProject project) {
  final Datastore datastore = getDatastore();
  BuildNumberCounter seq = datastore.findAndModify(
    datastore.find(BuildNumberCounter.class, "key = ", project.getFullName()), // query
    datastore.createUpdateOperations(BuildNumberCounter.class).inc("counter") // update
  );
  if (seq == null) {
    seq = new BuildNumberCounter(project.getFullName(), 1);
    datastore.save(seq);
  }
  return seq.getCounter();
}

代码示例来源：origin: stackoverflow.com

Datastore ds = ...;

//get/change/save
Settings s = ds.find(Settings.class).get(); //like findOne in the shell/driver
s.showFriendsList = true;
ds.save(s); 

//or update
ds.updateFirst(ds.find(Settings.class), ds.creatUpdateOperations(Settings.class).set("showFiendsList", true));

代码示例来源：origin: protegeproject/webprotege

public Optional<EntityDiscussionThread> getThread(@Nonnull ThreadId id) {
  return Optional.ofNullable(datastore.find(EntityDiscussionThread.class)
                    .field("_id").equal(id)
                    .get());
}

代码示例来源：origin: stackoverflow.com

MongoClient mongoClient = new MongoClient(new MongoClientURI("mongodb://localhost"));

Morphia morphia = new Morphia();
morphia.map(LookupData.class);           

//lookupdata collection is under my local db "tutorials" in this case
Datastore datastore = morphia.createDatastore(mongoClient, "tutorials");
Map<String,ArrayList> categotyLookUpMap = new HashMap<String,ArrayList>();

LookupData lookupData = datastore.find(LookupData.class).get();
categotyLookUpMap.put(lookupData.getKey(), lookupData.getValue());

代码示例来源：origin: acmeair/acmeair

@Override
public Booking getBooking(String user, String bookingId) {
  try{
    Query<BookingImpl> q = datastore.find(BookingImpl.class).field("_id").equal(bookingId);
    Booking booking = q.get();
    
    return booking;
  } catch (Exception e) {
    throw new RuntimeException(e);
  }
}

代码示例来源：origin: protegeproject/webprotege

@Override
public List<SlackWebhook> getWebhooks(@Nonnull ProjectId projectId) {
  return datastore.find(SlackWebhook.class).field(PROJECT_ID).equal(projectId).asList();
}

代码示例来源：origin: protegeproject/webprotege

@Nonnull
  public PrefixDeclarations find(@Nonnull ProjectId projectId) {
    PrefixDeclarations prefixDeclarations = datastore.find(PrefixDeclarations.class)
                             .field(PROJECT_ID).equal(projectId)
                             .get();
    if(prefixDeclarations == null) {
      return PrefixDeclarations.get(projectId);
    }
    else {
      return prefixDeclarations;
    }
  }
}

代码示例来源：origin: acmeair/acmeair

@Override
public void invalidateSession(String sessionid) {		
  Query<CustomerSessionImpl> q = datastore.find(CustomerSessionImpl.class).field("_id").equal(sessionid);
  datastore.delete(q);
}

代码示例来源：origin: acmeair/acmeair

@Override
protected CustomerSession getSession(String sessionid){
  Query<CustomerSessionImpl> q = datastore.find(CustomerSessionImpl.class).field("_id").equal(sessionid);		
  return q.get();
}

代码示例来源：origin: BlackLabs/play-morphia

@Override
public Model findById(Object id) {
  if (id == null)
    return null;
  try {
    return ds().find(clazz, keyName(), Binder.directBind(id.toString(), keyType())).get();
  } catch (Exception e) {
    // Key is invalid, thus nothing was found
    warn(e, "cannot find entity[%s] with id: %s", clazz.getName(), id);
    return null;
  }
}

代码示例来源：origin: protegeproject/webprotege

@Override
  public List<ProjectWebhook> getProjectWebhooks(@Nonnull ProjectId projectId, ProjectWebhookEventType event) {
    return datastore.find(ProjectWebhook.class)
        .field(PROJECT_ID).equal(projectId)
        .field(SUBSCRIBED_TO_EVENTS).equal(event)
        .asList();
  }
}

代码示例来源：origin: acmeair/acmeair

@Override
public Customer getCustomerByUsername(String username) {
  Query<CustomerImpl> q = datastore.find(CustomerImpl.class).field("_id").equal(username);
  Customer customer = q.get();
  if (customer != null) {
    customer.setPassword(null);
  }            
  return customer;
}

代码示例来源：origin: protegeproject/webprotege

public List<EntityDiscussionThread> findThreads(@Nonnull ProjectId projectId,
                        @Nonnull OWLEntity entity) {
  datastore.createQuery(EntityDiscussionThread.class);
  return datastore.find(EntityDiscussionThread.class)
          .disableValidation()
          .field(PROJECT_ID).equal(projectId)
          .field(ENTITY).equal(entity)
          .order("-comments.0.createdAt")
          .asList();
}

代码示例来源：origin: acmeair/acmeair

@Override
protected  FlightSegment getFlightSegment(String fromAirport, String toAirport){
  Query<FlightSegmentImpl> q = datastore.find(FlightSegmentImpl.class).field("originPort").equal(fromAirport).field("destPort").equal(toAirport);
  FlightSegment segment = q.get();
  if (segment == null) {
    segment = new FlightSegmentImpl(); // put a sentinel value of a non-populated flightsegment 
  }
  return segment;
}

代码示例来源：origin: protegeproject/webprotege

public void replaceEntity(ProjectId projectId, OWLEntity entity, OWLEntity withEntity) {
  Query<EntityDiscussionThread> query = datastore.find(EntityDiscussionThread.class)
                          .field(PROJECT_ID).equal(projectId)
                          .field(ENTITY).equal(entity);
  UpdateOperations<EntityDiscussionThread> updateOperations = datastore.createUpdateOperations(EntityDiscussionThread.class);
  updateOperations.set("entity", withEntity);
  datastore.update(query, updateOperations);
}