Caused by: java.lang.IllegalArgumentException: Type EMBEDDED must be a multi value type (collection or map)

[surendrayadav15]

I am getting following error when trying to persist java object in Orient DB version "3.0.15"

Mar 29, 2019 12:34:05 PM com.orientechnologies.common.log.OLogManager log INFO: Windows OS is detected, 262144 limit of open files will be set for the disk cache. Exception in thread "main" com.orientechnologies.orient.core.exception.OSerializationException: Error serializing object of class class com.bt.OrientdBNSD.ParseParse1111.beans.NodeParams DB name="NSDObjStore" at com.orientechnologies.orient.object.enhancement.OObjectEntitySerializer.serializeObject(OObjectEntitySerializer.java:150) at com.orientechnologies.orient.object.enhancement.OObjectEntitySerializer.typeToStream(OObjectEntitySerializer.java:819) at com.orientechnologies.orient.object.enhancement.OObjectEntitySerializer.multiValueToStream(OObjectEntitySerializer.java:1402) at com.orientechnologies.orient.object.enhancement.OObjectEntitySerializer.typeToStream(OObjectEntitySerializer.java:810) at com.orientechnologies.orient.object.enhancement.OObjectEntitySerializer.toStream(OObjectEntitySerializer.java:1221) at com.orientechnologies.orient.object.enhancement.OObjectEntitySerializer.serializeObject(OObjectEntitySerializer.java:148) at com.orientechnologies.orient.object.enhancement.OObjectEntitySerializer.typeToStream(OObjectEntitySerializer.java:819) at com.orientechnologies.orient.object.enhancement.OObjectEntitySerializer.toStream(OObjectEntitySerializer.java:1221) at com.orientechnologies.orient.object.enhancement.OObjectEntitySerializer.serializeObject(OObjectEntitySerializer.java:148) at com.orientechnologies.orient.object.db.OObjectDatabaseTx.save(OObjectDatabaseTx.java:499) at com.orientechnologies.orient.object.db.OObjectDatabaseTx.save(OObjectDatabaseTx.java:444) at com.bt.OrientdBNSD.ParseParse1111.beans.Main.createDOC(Main.java:39) at com.bt.OrientdBNSD.ParseParse1111.beans.Main.parseYaml(Main.java:33) at com.bt.OrientdBNSD.ParseParse1111.beans.Main.main(Main.java:21) Caused by: java.lang.IllegalArgumentException: Type EMBEDDED must be a multi value type (collection or map) at com.orientechnologies.orient.object.enhancement.OObjectEntitySerializer.multiValueToStream(OObjectEntitySerializer.java:1381) at com.orientechnologies.orient.object.enhancement.OObjectEntitySerializer.typeToStream(OObjectEntitySerializer.java:810) at com.orientechnologies.orient.object.enhancement.OObjectEntitySerializer.multiValueToStream(OObjectEntitySerializer.java:1402) at com.orientechnologies.orient.object.enhancement.OObjectEntitySerializer.typeToStream(OObjectEntitySerializer.java:810) at com.orientechnologies.orient.object.enhancement.OObjectEntitySerializer.multiValueToStream(OObjectEntitySerializer.java:1402) at com.orientechnologies.orient.object.enhancement.OObjectEntitySerializer.typeToStream(OObjectEntitySerializer.java:810) at com.orientechnologies.orient.object.enhancement.OObjectEntitySerializer.multiValueToStream(OObjectEntitySerializer.java:1402) at com.orientechnologies.orient.object.enhancement.OObjectEntitySerializer.typeToStream(OObjectEntitySerializer.java:810) at com.orientechnologies.orient.object.enhancement.OObjectEntitySerializer.multiValueToStream(OObjectEntitySerializer.java:1402) at com.orientechnologies.orient.object.enhancement.OObjectEntitySerializer.typeToStream(OObjectEntitySerializer.java:810) at com.orientechnologies.orient.object.enhancement.OObjectEntitySerializer.toStream(OObjectEntitySerializer.java:1221) at com.orientechnologies.orient.object.enhancement.OObjectEntitySerializer.serializeObject(OObjectEntitySerializer.java:148) ... 13 more

[surendrayadav15]

package com.bt.OrientdBNSD.ParseParse1111.beans;

import java.io.FileNotFoundException; import java.io.InputStream;

import org.yaml.snakeyaml.Yaml; import org.yaml.snakeyaml.constructor.Constructor;

import com.esotericsoftware.yamlbeans.YamlException; import com.orientechnologies.orient.object.db.OObjectDatabaseTx;

public class Main {

public static void main(String args[]) throws FileNotFoundException, YamlException{
    Main main = new Main();
    main.parseYaml();

}

/**
 * @param fileName
 * @throws FileNotFoundException
 * @throws YamlException
 * This method will be parsing yaml file and create NetworkServiceDescriptor Object to store in OrientDB
 */
public  void parseYaml() throws FileNotFoundException, YamlException{

    Yaml yaml = new Yaml(new Constructor(NetworkServiceDescriptor.class));
    InputStream inputStream = this.getClass().getClassLoader().getResourceAsStream("Test.yaml");

    NetworkServiceDescriptor nsd =  (NetworkServiceDescriptor) yaml.load(inputStream);
    System.out.println(nsd);
    //DB call
    createDOC(nsd);

}

/**
 * @param nsd
 * get DB connection and store value in OrientDB
 */
private void createDOC(NetworkServiceDescriptor nsd) {
    OObjectDatabaseTx db = getDBConnection();
    db.getEntityManager().registerEntityClasses("com.bt.OrientdBNSD.ParseParse1111.beans");
    db.save(nsd);
    db.commit();

}

/**
 * @return
 * DB Connection created using OObjectDatabaseT
 */
public static OObjectDatabaseTx getDBConnection() {

    OObjectDatabaseTx db = new OObjectDatabaseTx("remote:localhost/NSDObjStore").open("root", "root");
    return db;
}

}

package com.bt.OrientdBNSD.ParseParse1111.beans;

public class NetworkServiceDescriptor { public TopologyTemplate topology_template;

public TopologyTemplate getTopology_template() {
    return topology_template;
}

public void setTopology_template(TopologyTemplate topology_template) {
    this.topology_template = topology_template;
}

}

package com.bt.OrientdBNSD.ParseParse1111.beans;

import java.util.Map;

public class TopologyTemplate {

private Map<String,NodeParams> node_templates;

public Map<String, NodeParams> getNode_templates() {
    return node_templates;
}

public void setNode_templates(Map<String, NodeParams> node_templates) {
    this.node_templates = node_templates;
}

}

package com.bt.OrientdBNSD.ParseParse1111.beans;

import java.util.Map;

public class NodeParams { private String type; private Map<String,Map<String,Object>> interfaces;

public String getType() {
    return type;
}

public void setType(String type) {
    this.type = type;
}

public Map<String, Map<String, Object>> getInterfaces() {
    return interfaces;
}

public void setInterfaces(Map<String, Map<String, Object>> interfaces) {
    this.interfaces = interfaces;
}

}