java - How to convert BigDecimal to Double in spring-data-mongodb framework -

-

Spring data Mongo DB mapping converts BigDeselMail by default to string. However, I want them to be converted into double as Mangondo. After this, it is necessary to ask questions on this field (compare questions / aggregation questions) How can I get my own converter (BigDiclotod Double / Double-To-Big Decimal) to do this?

How can you add your own converters here: 

  & Lt; Bean id = "MangoTemplate" class = "org.springframework.data.mongodb.core.MongoTemplate" & gt; & Lt; Constructor-arg referee = "Mongo DBFCT" /> & Lt; Constructor-arg referee = "mapping conveyor" /> & Lt; Property Name = "Write Concurrent" & gt; & Lt; Usage: Constant Fixed Field = "com.mongodb.WriteConcern.FSYNC_SAFE" /> & Lt; / Property & gt; & Lt; Property Name = "ResultChecking Written" & gt; & Lt; Util: constant steady field = "org.springframework.data.mongodb.core.WriteResultChecking.EXCEPTION" /> & Lt; / Property & gt; & Lt; / Bean & gt; & Lt; Mongo: mapping-converter id = "mapping conveyor" & gt; & Lt; Mongo: custom-converters base-package = "com.vladmihalcea. **. Mongo.converter" /> & Lt; / Mongo: Mapping Converter & gt;

Now your converters will look like this: 

  @Component public class DoubleTwo Bidectic Converter converter applies

Before I got the converter I found: 

  update test.product query: {_id: 123} Update: {_id: 123, _class: "Com.vladmihalcea.mongo.model.Product", Name: "TV", Quantity: "10", Discount: "12.34", Version: 0 nscanned: Happy: 1 Upcent: 1 Key Update: 0 Locks (Micro ) W: 49328 50ms

After adding converters: 

  update test.product query: {_id: 123} update: {_id: 123, _class : "Com .80admahalcea.mongo.model.Product", Name: "TV", volume: "10", discount: 12.34, version nupcated: 1 upstate: 1 key update: 0 locks (micros) w: 64689 65ms < / Code>

Comments

Post a Comment

Popular posts from this blog

import - Python ImportError: No module named wmi -

-
I followed the instructions for downloading WMI for Python When I try to run the code for C.Win32_Service (StartMode = "Auto", state = "Stopped") import wmi c = wmi.WMI (): if Raw_input ("restart% s?"% S.Caption) .upper () == "Y": s.StartService () I got the error < Code> traceback (most recent call end): file ". \", Line 1, edit: I am using Python 2.7.6 EDIT2: I am running 64-bit Windows 2008 R2, and I've downloaded WMI-1.4.9.zip (md5). I removed the content and put it in D: Python \ Tools \ Scripts I executed dragon setup.py.install I said D : \ Python \ tools \ scripts to% PATH% and when I execute the code for C.Win32_Service (StartMode = "Auto", state = "Stopped") import wmi c = Wmi.WMI (): If raw_input ("Restart% s?"% S. Caption). () == "Y": s.StartService () error me Gets traceback (most recent call final): File ". See \", line 1, &
Read more

Editing Python Class in Shell and SQLAlchemy -

-
I am working on the terminal on a shell script after this tutorial SQLAlchemy tutorial. I need to type gt; & Gt; & Gt; Sqlalchemy import column, integer, string & gt; & Gt; & Gt; Class user (base): __tablename__ = 'users' id = column (integer, primary_key = true) name = column (string) absolute name = column (string) password = column (string) def __repr __ (self): return "& lt ; User (name = '% s', absolute name = '% s', password = '% s') & gt; "% (Self.name, self.fullname, self.password) After the problem I have typed the password = column (string) I hit twice and changed .... >> I then took everything back but then an error was thrown because the class already exists ... I am not completely sure how to fix it. How do I open that slip in the shell script and edit it (Add DF to DRR) The error thrown below: / user / giripeters / TFSQLLX / Lib / python2.7 / site-packages / sqlalchemy / ext / decla
Read more

c# - MySQL Parameterized Select Query joining tables issue -

-
I am using parameterized select questions in conjunction with my program and it works entirely, When I try to join the table Everything I have done is a small fraction: using (MySqlCommand cmd = new MySqlCommand (paramQuery) ToSql (), Connection)) /etc/ paramQuery.ToSql () Equal: "Select TableOne ID, Tableon, Department, Tablet. One by name table, Table 2 h Yes TableOnEID = @Pharmak "* / for (Int Index = 0; Index and Lt; ParamariX Parameter (.c calculation; Index ++) Cmd.Parameters.AddWithValue (paramQuery.Parameters (). ElementAt (index). , ParamQuery.Parameters (). ElementAt (index) .Value); / * ParamQuery.Parameters (). ElementAt (index) .k = "@most 0" paramQuery.Parameters (). ElementAt (index) .Value = "tableTwo.ID" * / MySqlDataReader Reader = cmd.ExecuteReader (); While (reader.Read ()) {// do stuff} } One of the tables I attempt to join is For the table, two with the same id for all. Is there something that I'm doing wrong?
Read more