pojo

问题 I have a model created in H2O using Python. I want to generate a POJO of that model, and save it. Say my model is called model_rf. I have tried: h2o.save_model(model_rf, path='./pojo_test', force=False) This create a directory called "pojo_test", which contains a whole bunch of binary files. I want a java file though, something like model_rf.java, that is the POJO itself. I tried: h2o.download_pojo(model_rf, path='./pojo_test_2', get_jar = True) Which gave the error message: IOError: [Errno 2

问题 I have a Location POJO that stores Location objects parsed in from a JSON file, which I want to map to a graph. Each node's location in the graph corresponds to it's id field, where id="1" is the start node and id="10" is the goal node. To solve this I adapted a Node class to include methods such as setWeight() , addChildLocation() etc , But I'm not sure how to create the graph from my list of locations. I know how to create the graph by hard coding the location's and calling addChildren, by

问题 I'm implementing a method that does something like: ... try { myPojo.setProperty("foo"); myService.execute(myPojo); } catch (Exception e) { logger.error(e.getMessage(), e); } ... If some exception is thrown by my service from this try block on pojo property will have the new value. Is there some way to start a kind of transaction for pojo changes and roll it back if something goes wrong? Something like: PojoTransaction pt = startPojoTransaction(); transactionedPojo = pt.handleByTransaction

问题 I am getting following json response from one of the vendor. { "status": "success", "data": { "values": [ [ "2015-12-28T09:15:00+0530", 1386.4, 1388, 1381.05, 1385.1, 788 ], [ "2015-12-28T09:15:00+0530", 1386.4, 1388, 1381.05, 1385.1, 788 ] ] } } I would like to convert this to POJO. I am using retrofit 2.0, rx java. I have tried following public class HistoricalDataContainer implements Parcelable{ public String status; public CandleList data; protected HistoricalDataContainer(Parcel in) {

问题 I would like to make a review about some user at my system, this review is made by others users. So here it's my user's table: And this is my user_review table: The EclipseLink is generating like this (actually it insted of @PrimaryJoinColumn was @JoinColumn it change it because of this post ): @Id @GeneratedValue(strategy=GenerationType.IDENTITY) private Integer id; @Temporal(TemporalType.DATE) private Date date; private String review; //bi-directional many-to-one association to User //

问题 I want to consume POJOs arriving from Kinesis with Flink. Is there any standard for how to correctly send and deserialize the messages? Thanks 回答1: I resolved it with: DataStream<SamplePojo> kinesis = see.addSource(new FlinkKinesisConsumer<>( "my-stream", new POJODeserializationSchema(), kinesisConsumerConfig)); and public class POJODeserializationSchema extends AbstractDeserializationSchema<SamplePojo> { private ObjectMapper mapper; @Override public SamplePojo deserialize(byte[] message)

问题 I have a Java object that I want to turn into a json object and pass to the Nashorn javascript engine. It is surprisingly difficult to google an answer for this! Can someone tell me how to do it? I tried this: ObjectMapper mapper = new ObjectMapper(); String inputModelAsString = mapper.writeValueAsString(inputModel); And then passing the string json to the function: result = invocable.invokeFunction(PROGRAM_FUNCTION, moduleName, inputModelAsString); But it was passed as a string, not as a

问题 i can't find any where how to create web service from server skeletons ( java pojo's )from wsdl using JAXWS. The only tutorials I see are using automated wizard in NetBeans and and axis2 in eclipse. Can someone please give me hints on how to generate server side classes from given wsdl? Thanks UPADATE: I just need to do : wsimport.bat -Xendorsed SOAP.WSDL and it creates the artifacts. But now how do I implement it in the server ? 回答1: In addition to client side classes, wsimport also

问题 I am having issues with parsing this XML into a POJO using Jackson. I have read all the previous descriptions on making classes to de-serialise the XML into POJOS but I keep getting either Null pointers or not END of element warnings. I am extremely confused and any help is much appreciated. The input xml is <row> <entry align="right" valign="top">20</entry> <entry align="right" valign="top">1A</entry> <entry valign="top">SData</entry> <entry align="center" valign="top">2</entry> <entry

问题 I have a property file that is configured within spring context xml file. I load values from the file fine. I am trying to load a property from that property file in a regular pojo which is not spring managed. Since Spring has already loaded that property, i was wondering if there is a way to get the value instead of me having to load the property file manually? 回答1: You can access the Spring context in a static way if your pojo is not managed by Spring. Add a bean to your application xml: