I am using the OObjectDatabaseTx implementation of OrientDB to store my POJOs in the database. When I try to retrieve some POJOs with a SQL commant, I get the result set but the attributes of the POJOs seem to be empty (getters regurning null).
I register my classes properly with
db.getEntityManager().registerEntityClass(MyUser.class);
The following code describes my problem:
Map<String, String> params = new HashMap<String, String>();
params.put("name", username);
List<MyUser> users = db.command(
new OSQLSynchQuery<MyUser>(
"select * from MyUser where "
+ "name = :name"))
.execute(params);
for (MyUser founduser : users) {
ODocument doc = db.getRecordByUserObject(founduser, false);
String pass = doc.field("pwd");
assertEquals(pass != null, true); // passes
assertEquals(founduser.getPwd() != null, true); // fails
}
How can I get the method getPwd to return the proper value?
I am now using Version 1.3.0 and this has worked before (afaik in 1.1.0).
Can you see if the POJO has the "pwd" field set inside of it?
Related
I want to check that the user has not been created yet before creating a new one, if there is then create an error... I found a similar question, but I can't remake it =(
Spring WebFlux: Emit exception upon null value in Spring Data MongoDB reactive repositories?
public Mono<CustomerDto> createCustomer(Mono<CustomerDto> dtoMono) {
//How Create Mono error???
Mono<Customer> fallback = Mono.error(new DealBoardException("Customer with email: " + dtoMono ???));
return dtoMono.map(customerConverter::convertDto) //convert from DTO to Document
.map(document -> {
customerRepository.findByEmailOrPhone(document.getEmail(), document.getPhone())
})
.switchIfEmpty() //How check such customer doesn't exists?
.map(document -> { //Filling in additional information from other services
var customerRequest = customerConverter.convertDocumentToStripe(document);
var customerStripe = customerExternalService.createCustomer(customerRequest);
document.setCustomerId(customerStripe.getId());
return document;
})
.flatMap(customerRepository::save) //Save to MongoDB
.map(customerConverter::convertDocument); //convert from Document to Dto
}
public Mono<User> create(String username, String password) {
User user = new User();
user.setUsername(username);
user.setPassword(encoder.encode(password));
return userRepo.existsUserByUsername(username)
.flatMap(exists -> (exists) ? Mono.error(UserAlreadyExists::new) : userRepo.save(user));
}
Add the following index declaration on the top of your Customer class:
#CompoundIndex(def = "{'email': 1, 'phone': 1}", unique = true)
That will prevent duplicate entries to be inserted in the database.
You can catch your org.springframework.dao.DuplicateKeyException with the following construct:
customerService.save(newCustomer).onErrorMap(...);
Ref: MongoDB Compound Indexes official documentation
I have succeed create an index use Client , the code like this :
public static boolean addIndex(Client client,String index) throws Exception {
if(client == null){
client = getSettingClient();
}
CreateIndexRequestBuilder requestBuilder = client.admin().indices().prepareCreate(index);
CreateIndexResponse response = requestBuilder.execute().actionGet();
return response.isAcknowledged();
//client.close();
}
public static boolean addIndexType(Client client, String index, String type) throws Exception {
if (client == null) {
client = getSettingClient();
}
TypesExistsAction action = TypesExistsAction.INSTANCE;
TypesExistsRequestBuilder requestBuilder = new TypesExistsRequestBuilder(client, action, index);
requestBuilder.setTypes(type);
TypesExistsResponse response = requestBuilder.get();
return response.isExists();
}
however, the method of addIndexType is not effected, the type is not create .
I don't know how to create type ?
You can create types when you create the index by providing a proper mapping configuration. Alternatively a type gets created when you index a document of a certain type. However the first suggestion is the better one, because then you can control the full mapping of that type instead of relying on dynamic mapping.
You can set types in the following way:
// JSON schema is the JSON mapping which you want to give for the index.
JSONObject builder = new JSONObject().put(type, JSONSchema);
// And then just fire the below command
client.admin().indices().preparePutMapping(indexName)
.setType(type)
.setSource(builder.toString(), XContentType.JSON)
.execute()
.actionGet();
I'm using Spring data MongoTemplate to manage mongo operations. I'm trying to save & update json full documents (using String.class in java).
Example:
String content = "{MyId": "1","code":"UG","variables":[1,2,3,4,5]}";
String updatedContent = "{MyId": "1","code":"XX","variables":[6,7,8,9,10]}";
I know that I can update code & variables independently using:
Query query = new Query(where("MyId").is("1"));
Update update1 = new Update().set("code", "XX");
getMongoTemplate().upsert(query, update1, collectionId);
Update update2 = new Update().set("variables", "[6,7,8,9,10]");
getMongoTemplate().upsert(query, update2, collectionId);
But due to our application architecture, it could be more useful for us to directly replace the full object. As I know:
getMongoTemplate().save(content,collectionId)
getMongoTemplate().save(updatedContent,collectionId)
implements saveOrUpdate functionality, but this creates two objects, do not update anything.
I'm missing something? Any approach? Thanks
You can use Following Code :
Query query = new Query();
query.addCriteria(Criteria.where("MyId").is("1"));
Update update = new Update();
Iterator<String> iterator = json.keys();
while(iterator.hasNext()) {
String key = iterator.next();
if(!key.equals("MyId")) {
Object value = json.get(key);
update.set(key, value);
}
}
mongoTemplate.updateFirst(query, update, entityClass);
There may be some other way to get keyset from json, you can use according to your convenience.
You can use BasicDbObject to get keyset.
you can get BasicDbObject using mongoTemplate.getConverter().
OrientDB question...
Does anyone know how I can get the recordId after an insert:
db.save(person)
I tried below on the Person POJO:
#Id
private Object id;
but the id field was null after the save. I've googled and googled to no avail. I just need to insert an object, then get the recordid that orientdb generates.
Define field in pojo:
#Id
private Object rid;
public Object getRid() {
return rid;
}
When save:
YourClass proxy = db.save(yourClassInstance);
Object rid = proxy.getRid();
I got it to work using ODocuments instead of POJOs (which works for my project). Code sample:
ODatabaseDocumentTx db = null;
ODocument doc = null;
db = new ODatabaseDocumentTx("local:" + System.getProperty("user.home") + "/testDB");
db.create();
doc = new ODocument("Person");
doc.field("name", "Peter");
doc.save();
String rid = doc.getIdentity().toString();
List<ODocument> results = db.query(new OSQLSynchQuery<ODocument>("select from " + rid));
for (ODocument aDoc : results) {
System.out.println(aDoc.field("name"));
}
db.close();
It's just simple here is the code:
//insertquery will be the sql statement you want to insert
ODocument result=db.command(new OCommandSQL(insertquery)).execute();
System.out.println(result.field("#rid"));
Alternatively you can make use of getRecordByUserObject() of OObjectDatabaseTx,
OObjectDatabaseTx db = new OObjectDatabaseTx("local:" + System.getProperty("user.home") + "/testDB");
ODocument oDocument = db.getRecordByUserObject( person, true );
oDocument.save();
String rid = oDocument.getIdentity().toString();
If you already have access to your proxy object from the save, you can totally do a cool cast on it to get the underlying ODocument object which has a record ID (Identity).
Person proxyPerson = db.save(person);
ODocument oDocument = ((OObjectProxyMethodHandler)((ProxyObject)proxyPerson).getHandler()).getDoc();
person.setId(oDocument.getIdentity().toString());
I have built a common app that works with PostgreSQL and should work on Oracle.
However i'm getting strange errors when inserting records through a parametrized query.
My formatted query looks like this:
"INSERT INTO layer_mapping VALUES (#lm_id,#lm_layer_name,#lm_layer_file);"
Unlike Npgsql which documents how to use the parameters, i could not found how Oracle "prefers" them to be used. I could only find :1, :2, :3, for example.
I do not wanto use sequential parameters, i want to use them in a named way.
Is there a way to do it? Am i doing something wrong?
Thanks
You can use named parameters with ODP.NET like so:
using (var cx=new OracleConnection(connString)){
using(var cmd=cx.CreateCommand()){
cmd.CommandText="Select * from foo_table where bar=:bar";
cmd.BindByName=true;
cmd.Parameters.Add("bar",barValue);
///...
}
}
I made this lib https://github.com/pedro-muniz/ODPNetConnect/blob/master/ODPNetConnect.cs
so you can do parameterized write and read like this:
ODPNetConnect odp = new ODPNetConnect();
if (!String.IsNullOrWhiteSpace(odp.ERROR))
{
throw new Exception(odp.ERROR);
}
//Write:
string sql = #"INSERT INTO TABLE (D1, D2, D3) VALUES (:D1, :D2, :D3)";
Dictionary<string, object> params = new Dictionary<string, object>();
params["D1"] = "D1";
params["D2"] = "D2";
params["D3"] = "D3";
int affectedRows = odp.ParameterizedWrite(sql, params);
if (!String.IsNullOrWhiteSpace(odp.ERROR))
{
throw new Exception(odp.ERROR);
}
//read
string sql = #"SELECT * FROM TABLE WHERE D1 = :D1";
Dictionary<string, object> params = new Dictionary<string, object>();
params["D1"] = "D1";
DataTable dt = odp.ParameterizedRead(sql, params);
if (!String.IsNullOrWhiteSpace(odp.ERROR))
{
throw new Exception(odp.ERROR);
}
Notes: you have to change these lines in ODPNetConnect.cs to set connection string:
static private string devConnectionString = "SET YOUR DEV CONNECTION STRING";
static private string productionConnectionString = "SET YOUR PRODUCTION CONNECTION STRING";
And you need to change line 123 to set environment to dev or prod.
public OracleConnection GetConnection(string env = "dev", bool cacheOn = false)