mapping

问题 I cant change the mapping. Can anybody help me to find the bug in my code? I have found this standard way to change the mapping according to several tutorials. But when i'm try to call the mapping structure there just appear a blank mapping structure after manuall mapping creation. But after inserting some data there appear the mapping specification because ES is using of course the default one. To be more specific see the code below. public class ElasticTest { private String dbname =

问题 I want to get data from two tables with single Entity class. How?? public class HomeViewModel { [Key] [Column("candidate_ID")] public int candidateID { get; set; } [Column("first_name")] public string firstName { get; set; } [Column("last_name")] public string lastName { get; set; } public string emailID { get; set; } public string mb_country_code { get; set; } public int mobile_no { get; set; } } Above entity class holds 6 property where 3 property represents one table1 and 3 represents

问题 I want to get data from two tables with single Entity class. How?? public class HomeViewModel { [Key] [Column("candidate_ID")] public int candidateID { get; set; } [Column("first_name")] public string firstName { get; set; } [Column("last_name")] public string lastName { get; set; } public string emailID { get; set; } public string mb_country_code { get; set; } public int mobile_no { get; set; } } Above entity class holds 6 property where 3 property represents one table1 and 3 represents

问题 I'm looking for best tool/way to create and load JAVA objects from XML definitions. I had checked out JAXB, seems pretty nice, but didn't find is there a way to work with Entities which properties are dynamic, or changed from time to time, so want to have something like automatic way of working with entities, without converting Object into predefine Entity object. Does something like that exists? Workflow would be like this read from XML create class for each Entity with dynamic set of

问题 This JSON snippet should be mapped to a Java-Objects that contains a cars field of type Map<String, Car> and a bikes field of type Map<String, Bike> . Because bikes and cars can be empty strings in the JSON file, i need a custom deserializer (See this question). { "id" : "1234", "name" : "John Doe", "cars" : { "Tesla Model S" : { "color" : "silver", "buying_date" : "2012-06-01" }, "Toyota Yaris" : { "color" : "blue", "buying_date" : "2005-01-01" } }, "bikes" : { "Bike 1" : { "color" : "black"

问题 I'm quite new to hibernate and have stumbled on this problem, which I can't find solution for. When persisting parent object (with one-to-many relationship with child), the foreign-key to this parent is not stored in child's table. My classes: Parent.java @javax.persistence.Table(name = "PARENT") @Entity public class PARENT { private Integer id; @javax.persistence.Column(name = "ID") @Id @GeneratedValue(strategy=GenerationType.AUTO) public Integer getId() { return id; } public void setId

问题 I'm quite new to hibernate and have stumbled on this problem, which I can't find solution for. When persisting parent object (with one-to-many relationship with child), the foreign-key to this parent is not stored in child's table. My classes: Parent.java @javax.persistence.Table(name = "PARENT") @Entity public class PARENT { private Integer id; @javax.persistence.Column(name = "ID") @Id @GeneratedValue(strategy=GenerationType.AUTO) public Integer getId() { return id; } public void setId

问题 I'm trying to port my application to Scala 2.10.0-M2. I'm seeing some nice improvements with better warnings from compiler. But I also got bunch of errors, all related to me mapping from Enumeration.values . I'll give you a simple example. I'd like to have an enumeration and then pre-create bunch of objects and build a map that uses enumeration values as keys and then some matching objects as values. For example: object Phrase extends Enumeration { type Phrase = Value val PHRASE1 = Value("My

问题 I am trying to create a simple 3D-array visualisation in opengl. The 3D-array contains color values. To achieve this, I could just draw lots of cubes, giving them texture-coordinates to point to the correct texel. Well, I tried it, and it works. But I need a lot more, and the only way to achieve what I want is if I just draw full 2D planes on every grid in the other axis direction as the plane is on and do this is 6 directions. So for example: I draw XY-plane from -15 to +15, on Z-coordinates

问题 Closed. This question is off-topic. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed 2 years ago . I have the following dataset for California housing data: head(calif_cluster,15) MedianHouseValue MedianIncome MedianHouseAge TotalRooms TotalBedrooms Population 1 190300 4.20510 16 2697.00 490.00 1462 2 150800 2.54810 33 2821.00 652.00 1206 3 252600 6.08290 17 6213.20 1276.05 3288 4 269700 4.03680 52 919.00 213