Develop Reference

Unable to parse JSON with Jackson (mapping doesn't work)

I am trying to use Jackson to parse sample json as demonstrated below. However, I the parsing doesn't work (fails without any exceptions - as I get an empty string for event.getAccountId(); What could I be doing wrong?
Thanks!
ObjectMapper om = new ObjectMapper();
String json = "{\"_procurementEvent\" : [{ \"accountId\" : \"3243234\",\"procurementType\" : \"view\"," +
"\"_procurementSubType\" : \"Standard Connector\",\"_quantity\" : \"4\", \"_pricePerMonth\" : \"100.00\"" +
",\"_annualPrice\" : \"1200.00\"}]}";
ProcurementEvent event = om.readValue(json, ProcurementEvent.class);
event.getAccountId(); // returns null
#JsonIgnoreProperties(ignoreUnknown = true)
private static class ProcurementEvent {
private String _accountId;
private String _procurementType;
private String _quantity;
private String _pricePerMonth;
private String _annualPrice;
#JsonProperty("accountId")
public String getAccountId() {
return _accountId;
}
public void setAccountId(String accountId) {
_accountId = accountId;
}
#JsonProperty("procurementType")
public String getProcurementType() {
return _procurementType;
}
public void setProcurementType(String procurementType) {
_procurementType = procurementType;
}
#JsonProperty("_quantity")
public String getQuantity() {
return _quantity;
}
public void setQuantity(String quantity) {
_quantity = quantity;
}
#JsonProperty("_pricePerMonth")
public String getPricePerMonth() {
return _pricePerMonth;
}
public void setPricePerMonth(String pricePerMonth) {
_pricePerMonth = pricePerMonth;
}
#JsonProperty("_annualPrice")
public String getAnnualPrice() {
return _annualPrice;
}
public void setAnnualPrice(String annualPrice) {
_annualPrice = annualPrice;
}
}

In the question, try the following approach:
class ProcurementEvents {
private List<ProcurementEvent> _procurementEvent; // + annotations like #JsonIgnoreProperties, getters/ setters, etc.
}
// json from your example
ProcurementEvents events = om.readValue(json, ProcurementEvents.class);
events.get(0).getAccountId();

Java.net(RestFul service JSON reponse parsing issue) How to convert list of same item in JSON reponse String to Java Object?

I am calling Restful service using below code :(Java.net implementation )
StringBuilder responseStrBuilder = new StringBuilder();
try
{
URL url = new URL(restUrl);
conn = (HttpURLConnection) url.openConnection();
conn.setRequestMethod(httpRequestMethod);
conn.setRequestProperty("Accept-Language", "en-US,en;q=0.5");
conn.setRequestProperty("Content-Type", "application/json");
if (requestHeaders != null)
{
for (Map.Entry<String, String> entry : requestHeaders.entrySet())
{
conn.setRequestProperty(entry.getKey(), entry.getValue());
}
}
conn.setDoInput(true);
conn.setDoOutput(true);
OutputStream os = conn.getOutputStream();
os.write(urlParameters.getBytes());
os.flush();
os.close();
if (conn.getResponseCode() != 200) {//do something}
br = new BufferedReader(new InputStreamReader((conn.getInputStream())));
while ((output = br.readLine()) != null)
responseStrBuilder.append(output);
Approach 1:
I have below string(JSON String) as my Restful service response , how can I convert it to Java object. Since same(Itm) object is repeated multiple times if I use org.codehaus.jettison.json.JSONObject myObject = new org.codehaus.jettison.json.JSONObject(responseStrBuilder.toString());
It only reads first Itm Object and does not bring list of all item object.
JSON String output from service :
{"Response":{"RID":"04'34'",
"Itm":{"id":{"ab":"1","cd":"12"},"qw":"JK","name":"abcd "},
"Itm":{"id":{"ab":"2","cd":"34},"qw":"JK","name":"asdf "},
"Itm":{"id":{"ab":"3","cd":"12"},"qw":"JK","name":"fghj "}
}}
Approach 2:
I also tried below snippet with correct Java object with setters and getters
ObjectMapper objectMapper = new ObjectMapper();
mapper.configure(DeserializationConfig.Feature.FAIL_ON_UNKNOWN_PROPERTIES, false);
MyJavaReponseObject javaObj = mapper.readValue(json, MyJavaReponseObject.class);
This approach also reads only one object of Itm and not all the object as its not coming in array format in JSON string. Is there any better way of getting all the object(Itm) mapped to single List of Object in java pojo ?

You can use the List class in your response object, if you should parse that json string itself.
I have a ReponseJSON class with json objects, one Response and three Itms
static class ReponseJSON {
private Response Response;
#JsonProperty("Response")
public Response getResponse() {
return Response;
}
public void setResponse(Response Response) {
this.Response = Response;
}
static class Response {
private String rid;
private Itm Itm;
private List<Itm> listItm = new ArrayList<Itm>();
public Itm getItm() {
return Itm;
}
#JsonProperty("Itm")
public void setItm(Itm Itm) {
this.Itm = Itm;
listItm.add(Itm);
}
public String getRID() {
return rid;
}
public List<Itm> getItms() {
return listItm;
}
#JsonProperty("RID")
public void setRID(String rid) {
this.rid = rid;
}
static class Itm {
private Id id;
private String qw, name;
public String getQw() {
return qw;
}
public void setQw(String qw) {
this.qw = qw;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public Id getId() {
return id;
}
public void setId(Id id) {
this.id = id;
}
static class Id {
private String ab, cd;
public String getCd() {
return cd;
}
public void setCd(String cd) {
this.cd = cd;
}
public String getAb() {
return ab;
}
public void setAb(String ab) {
this.ab = ab;
}
}
}
}
}
In a Response class, I have a list class and save a Itm object whenever object mapper call this class.
static class Response {
... skip ..
private List<Itm> listItm = new ArrayList<Itm>();
... skip ..
#JsonProperty("Itm")
public void setItm(Itm Itm) {
this.Itm = Itm;
listItm.add(Itm);
}
}
Check the full source code as follows.
import java.io.File;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import com.fasterxml.jackson.annotation.JsonProperty;
import com.fasterxml.jackson.core.JsonParseException;
import com.fasterxml.jackson.core.JsonParser;
import com.fasterxml.jackson.databind.DeserializationFeature;
import com.fasterxml.jackson.databind.ObjectMapper;
public class JacksonParserTest {
static class ReponseJSON {
private Response Response;
#JsonProperty("Response")
public Response getResponse() {
return Response;
}
public void setResponse(Response Response) {
this.Response = Response;
}
static class Response {
private String rid;
private Itm Itm;
private List<Itm> listItm = new ArrayList<Itm>();
public Itm getItm() {
return Itm;
}
#JsonProperty("Itm")
public void setItm(Itm Itm) {
this.Itm = Itm;
listItm.add(Itm);
}
public String getRID() {
return rid;
}
public List<Itm> getItms() {
return listItm;
}
#JsonProperty("RID")
public void setRID(String rid) {
this.rid = rid;
}
static class Itm {
private Id id;
private String qw, name;
public String getQw() {
return qw;
}
public void setQw(String qw) {
this.qw = qw;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public Id getId() {
return id;
}
public void setId(Id id) {
this.id = id;
}
static class Id {
private String ab, cd;
public String getCd() {
return cd;
}
public void setCd(String cd) {
this.cd = cd;
}
public String getAb() {
return ab;
}
public void setAb(String ab) {
this.ab = ab;
}
}
}
}
}
public static void main(String[] args) {
String responseJson =
"{\"Response\":{\"RID\":\"04'34'\","
+ "\"Itm\":{\"id\":{\"ab\":\"1\",\"cd\":\"12\"},\"qw\":\"JK\",\"name\":\"abcd\"}"
+ ",\"Itm\":{\"id\":{\"ab\":\"2\",\"cd\":\"34\"},\"qw\":\"JK\",\"name\":\"asdf\"}"
+ ",\"Itm\":{\"id\":{\"ab\":\"3\",\"cd\":\"12\"},\"qw\":\"JK\",\"name\":\"fghj\"}"
+ "}} ";
ObjectMapper mapper = new ObjectMapper();
ReponseJSON responseObj = null;
try {
responseObj = mapper.readValue(responseJson, ReponseJSON.class);
ReponseJSON.Response response = responseObj.getResponse();
for(int i = 0; i < response.getItms().size(); i++)
{
ReponseJSON.Response.Itm item = response.getItms().get(i);
System.out.println(item.getId().getAb());
}
} catch (IOException e) {
e.printStackTrace();
}
}
}
The version of my jackson mapper is 2.9.1.
You check the main method of the source, because the JSON string you prepared is invalid as coddemonkey mentioned.
Have a good day.

Make your json response looks something similar to this
{"Response":{"RID":"04'34'",
"Itms":[{"id":{"ab":"1","cd":"12"},"qw":"JK","name":"abcd "},
{"id":{"ab":"2","cd":"34"},"qw":"JK","name":"asdf "},
{"id":{"ab":"3","cd":"12"},"qw":"JK","name":"fghj "}]
}}
then, use org.json jar to parse the string to jsonObject
JSONObject jsonObject=new JSONObject(responseString);
This is one type of solution, if you can't change the response as mentioned above then you have to manually parse the string(using java bean) there is no other option available.

Android Studio - Issue loading JSON

I'm using Android Studio and I want to make a listview, which contains values that are received by JSON.
protected Void doInBackground(Void... voids) {
HttpHandler Handler = new HttpHandler();
String JSONString = Handler.makeServiceCall(JSONUrl);
Log.e(TAG, "Response:" + JSONString);
if(JSONString != null){
try {
JSONObject CountriesJSONObject = new JSONObject(JSONString);
JSONArray Countries = CountriesJSONObject.getJSONArray("countries");
for (int i = 1; i < Countries.length(); i++) {
JSONObject Country = Countries.getJSONObject(i);
//Details
String CountryID = Country.getString("id");
String CountryName = Country.getString("name");
String CountryImage = Country.getString("image");
//Hashmap
HashMap<String, String> TempCountry = new HashMap<>();
//Details to Hashmap
TempCountry.put("id", CountryID);
TempCountry.put("name", CountryName);
TempCountry.put("image", CountryImage);
//Hashmap to Countrylist
CountryList.add(TempCountry);
}
} catch (final JSONException e){
Log.e(TAG,e.getMessage());
ProgressDialog.setMessage("Error loading Data!");
}
}
return null;
}
This is the code for getting the JSON values, and i'm receiving an error
"No value for id"
What am I doing wrong?

You still have the "country" key to unwrap. Try like this:
for (int i = 1; i < Countries.length(); i++) {
JSONObject Country = Countries.getJSONObject(i).getJSONObject("country");
//Details
String CountryID = Country.getString("id");
String CountryName = Country.getString("name");
String CountryImage = Country.getString("image");
//Hashmap
HashMap<String, String> TempCountry = new HashMap<>();
//Details to Hashmap
TempCountry.put("id", CountryID);
TempCountry.put("name", CountryName);
TempCountry.put("image", CountryImage);
//Hashmap to Countrylist
CountryList.add(TempCountry);
}

First step is to create a new Java class model for the JSON - you can just copy and paste this.
import java.io.Serializable;
import java.util.ArrayList;
import java.util.Arrays;
public class Countries {
public class CountriesList implements Serializable {
private Country[] countries;
public Country[] getCountries() {
return countries;
}
public void setCountries(Country[] countries) {
this.countries = countries;
}
public ArrayList<Country> getCountriesAsList() {
if(countries == null || countries.length == 0) {
return new ArrayList<>();
} else {
return (ArrayList<Country>) Arrays.asList(countries);
}
}
}
public class Country implements Serializable {
private String id;
private String name;
private String image;
public Country() {
}
public String getId() {
return id;
}
public void setId(String id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getImage() {
return image;
}
public void setImage(String image) {
this.image = image;
}
}
}
Now, it's simply converting the JSON into Java object like this. You can use that ArrayList for adapter or however you like.
protected Void doInBackground(Void... voids) {
HttpHandler Handler = new HttpHandler();
String jsonString = Handler.makeServiceCall(JSONUrl);
Countries.CountriesList countries = new Gson().fromJson(jsonString, Countries.CountriesList.class);
// this is the full list of all your countries form json
ArrayList<Countries.Country> countryList = countries.getCountriesAsList();
}
Note: you will need the Gson library to use the solution I showed above. I use that to convert JSON into Java object.
compile 'com.google.code.gson:gson:2.8.0'

Android Dynamic response type Retroft

hello i have Json response like this
[
{
"question": "hhhhh",
"question_answer": "hhhh ",
"question_type": "question type",
"questioner_age": "questioner age",
"questioner_city": "questioner city",
"questioner_country": "questioner country",
"questioner_name": "questioner name",
"questioner_sex": "questioner sex",
"comments_allowed": "1",
"question_id": "63",
"question_date": "05/08/2017 - 19:33",
"is_public": "1"
},
{
"question": "hhhh !!",
"question_answer": "hhhh",
"question_type": [],
"questioner_age": [],
"questioner_city": [],
"questioner_country": [],
"questioner_name": "hhhhh",
"questioner_sex": [],
"comments_allowed": "1",
"question_id": "57",
"question_date": "04/30/2017 - 14:24",
"is_public": "1"
}
]
if the column is null will return as an array like this "question_type": [],
if not will return as a string !
so i tried to get this response on retrofit but i failed and always got this error
com.google.gson.JsonSyntaxException: java.lang.IllegalStateException: Expected BEGIN_OBJECT but was BEGIN_ARRAY at line 4 column 2 path $
after i searched in the internet i tried something like this but its not working !!
Gson gson = new Gson();
String json = response.body().toString();
if (json instanceof String)
{
MyQuestionModelString parseObject = gson.fromJson(json, MyQuestionModelString.class);
apiCallResponse.onSuccess(parseObject,responseMessage);
}else {
MyQuestionModel parseObject = gson.fromJson(json, MyQuestionModel.class);
apiCallResponse.onSuccess(parseObject,responseMessage);
}
any help !
UPDATAE !
this is my model for this response and same error !!!
public class MyQuestionModel {
#SerializedName("question")
#Expose
private String question;
#SerializedName("question_answer")
#Expose
private String questionAnswer;
#SerializedName("question_type")
#Expose
private List<Object> questionType = null;
#SerializedName("questioner_age")
#Expose
private List<Object> questionerAge = null;
#SerializedName("questioner_city")
#Expose
private List<Object> questionerCity = null;
#SerializedName("questioner_country")
#Expose
private List<Object> questionerCountry = null;
#SerializedName("questioner_name")
#Expose
private String questionerName;
#SerializedName("questioner_sex")
#Expose
private List<Object> questionerSex = null;
#SerializedName("comments_allowed")
#Expose
private String commentsAllowed;
#SerializedName("question_id")
#Expose
private String questionId;
#SerializedName("question_date")
#Expose
private String questionDate;
#SerializedName("is_public")
#Expose
private String isPublic;
}
My Main issue that how to define this field ! question_type
screen shot

During the parsing of json if the SerializedName key is not found it will throw an exception. Use #Expose to let the deserializer to know that this field can be null. Here is a similar Model of your mentioned response
public class ResponsePojo {
List<Data> data;
public class Data {
#Expose
#SerializedName("question")
String question;
#Expose
#SerializedName("question_answer")
String questionAnswer;
#Expose
#SerializedName("question_type")
String questionType;
#Expose
#SerializedName("questioner_age")
String questionerAge;
#Expose
#SerializedName("questioner_city")
String questionerCity;
#Expose
#SerializedName("questioner_country")
String questionerCountry;
#Expose
#SerializedName("questioner_name")
String questionerName;
#Expose
#SerializedName("questioner_sex")
String questionerSex;
#Expose
#SerializedName("comments_allowed")
String commentsAllowed;
#Expose
#SerializedName("question_id")
String questionId;
#Expose
#SerializedName("question_date")
String questionDate;
#Expose
#SerializedName("is_public")
String isPublic;
}
}

You must indicate which paramters or objects in the model are optional with #Exposed tag.
Example
#Expose
#SerializedName("question_type")
private String mQuestionType;

You problem is
ava.lang.IllegalStateException: Expected BEGIN_OBJECT but was BEGIN_ARRAY at line 4 column 2 path $
If your json code is [...],your return is JSONArray , you can use Gsonto parse it to List<Object> .
If your json code is {...},your return is JSONObject , you can use Gsonto parse it to Object .
So you should use List<MyQuestionModel> to get parsed data .
Change MyQuestionModel to List<MyQuestionModel> in your call code .
Sample
Call<List<MyQuestionModel>> getData();
And my code for doing it .
JSONEntity for you json
public class JSONEntity {
/**
* question : hhhhh
* question_answer : hhhh
* question_type : question type
* questioner_age : questioner age
* questioner_city : questioner city
* questioner_country : questioner country
* questioner_name : questioner name
* questioner_sex : questioner sex
* comments_allowed : 1
* question_id : 63
* question_date : 05/08/2017 - 19:33
* is_public : 1
*/
private String question;
private String question_answer;
private String question_type;
private String questioner_age;
private String questioner_city;
private String questioner_country;
private String questioner_name;
private String questioner_sex;
private String comments_allowed;
private String question_id;
private String question_date;
private String is_public;
public String getQuestion() {
return question;
}
public void setQuestion(String question) {
this.question = question;
}
public String getQuestion_answer() {
return question_answer;
}
public void setQuestion_answer(String question_answer) {
this.question_answer = question_answer;
}
public String getQuestion_type() {
return question_type;
}
public void setQuestion_type(String question_type) {
this.question_type = question_type;
}
public String getQuestioner_age() {
return questioner_age;
}
public void setQuestioner_age(String questioner_age) {
this.questioner_age = questioner_age;
}
public String getQuestioner_city() {
return questioner_city;
}
public void setQuestioner_city(String questioner_city) {
this.questioner_city = questioner_city;
}
public String getQuestioner_country() {
return questioner_country;
}
public void setQuestioner_country(String questioner_country) {
this.questioner_country = questioner_country;
}
public String getQuestioner_name() {
return questioner_name;
}
public void setQuestioner_name(String questioner_name) {
this.questioner_name = questioner_name;
}
public String getQuestioner_sex() {
return questioner_sex;
}
public void setQuestioner_sex(String questioner_sex) {
this.questioner_sex = questioner_sex;
}
public String getComments_allowed() {
return comments_allowed;
}
public void setComments_allowed(String comments_allowed) {
this.comments_allowed = comments_allowed;
}
public String getQuestion_id() {
return question_id;
}
public void setQuestion_id(String question_id) {
this.question_id = question_id;
}
public String getQuestion_date() {
return question_date;
}
public void setQuestion_date(String question_date) {
this.question_date = question_date;
}
public String getIs_public() {
return is_public;
}
public void setIs_public(String is_public) {
this.is_public = is_public;
}
}
And the code for parse it .
Gson gson = new Gson();
String jsonString = response.body().string();
Type type = new TypeToken<List<JSONEntity>>() {
}.getType();
List<JSONEntity> datas = gson.fromJson(jsonString, type);
EDIT
If your response is JSONArray , you can try like this .
List<JSONEntity> datas = response.body();

Try to change your JSON Structure
First Approach
To
If the column is null return "question_type": null,else show "question_type": "value"
Instead
If the column is null will return as an array like this "question_type": [], if not will return as a string!
Second Approach Without changing Json structure
Handling Dynamic JSON Using Gson
Try this:
You have to use deserialize to parse dynamic datatype in json
In the reponse pojo use object
Ex:
Call<Object> call = //your API call ResponsePojo instead use `Object`
call.enqueue(new Callback<Object>()
{
#Override
public void onResponse(Response<Object> response, Retrofit retrofit)
{
try {
JSONArray jsonArray=new JSONArray(json);
for (int i = 0; i < jsonArray.length(); i++) {
Gson gson = new GsonBuilder()
.registerTypeAdapter(ServerResponse.class, new ServerResponse.OptionsDeserilizer())
.create();
ServerResponse serverResponse=gson.fromJson(jsonArray.get(i).toString(), ServerResponse.class);
System.out.println(serverResponse);
}
} catch (JSONException e) {
e.printStackTrace();
}
}
#Override
public void onFailure(Throwable t)
{
///Handle failure
}
});
Use this ServerResponsePojo with JsonDeserializer
import android.text.TextUtils;
import com.google.gson.Gson;
import com.google.gson.JsonDeserializationContext;
import com.google.gson.JsonDeserializer;
import com.google.gson.JsonElement;
import com.google.gson.JsonObject;
import com.google.gson.JsonParseException;
import com.google.gson.annotations.Expose;
import com.google.gson.annotations.SerializedName;
import com.google.gson.reflect.TypeToken;
import java.lang.reflect.Type;
public class ServerResponse {
#SerializedName("question")
#Expose
private String question;
#SerializedName("question_answer")
#Expose
private String questionAnswer;
private String questionerName;
#SerializedName("comments_allowed")
#Expose
private String commentsAllowed;
#SerializedName("question_id")
#Expose
private String questionId;
#SerializedName("question_date")
#Expose
private String questionDate;
#SerializedName("is_public")
#Expose
private String isPublic;
public String getQuestion() {
return question;
}
public void setQuestion(String question) {
this.question = question;
}
public String getQuestionAnswer() {
return questionAnswer;
}
public void setQuestionAnswer(String questionAnswer) {
this.questionAnswer = questionAnswer;
}
/* public List<OptionValue> getQuestionerAge() {
return questionerAge;
}
public void setQuestionerAge(List<OptionValue> questionerAge) {
this.questionerAge = questionerAge;
}
public List<OptionValue> getQuestionerCity() {
return questionerCity;
}
public void setQuestionerCity(List<OptionValue> questionerCity) {
this.questionerCity = questionerCity;
}
public List<OptionValue> getQuestionerCountry() {
return questionerCountry;
}
public void setQuestionerCountry(List<OptionValue> questionerCountry) {
this.questionerCountry = questionerCountry;
}
*/
public String getQuestionerName() {
return questionerName;
}
public void setQuestionerName(String questionerName) {
this.questionerName = questionerName;
}
/*
public List<OptionValue> getQuestionerSex() {
return questionerSex;
}
public void setQuestionerSex(List<OptionValue> questionerSex) {
this.questionerSex = questionerSex;
}*/
public String getCommentsAllowed() {
return commentsAllowed;
}
public void setCommentsAllowed(String commentsAllowed) {
this.commentsAllowed = commentsAllowed;
}
public String getQuestionId() {
return questionId;
}
public void setQuestionId(String questionId) {
this.questionId = questionId;
}
public String getQuestionDate() {
return questionDate;
}
public void setQuestionDate(String questionDate) {
this.questionDate = questionDate;
}
public String getIsPublic() {
return isPublic;
}
public void setIsPublic(String isPublic) {
this.isPublic = isPublic;
}
public class OptionValue {
}
public void setQuestionType(String questionType) {
this.questionType = questionType;
}
String questionType;
public static class OptionsDeserilizer implements JsonDeserializer<ServerResponse> {
#Override
public ServerResponse deserialize(JsonElement json, Type typeOfT, JsonDeserializationContext context) throws JsonParseException {
Type listType = new TypeToken<ServerResponse>() {
}.getType();
ServerResponse options = (ServerResponse) new Gson().fromJson(json, listType);
JsonObject jsonArrayValue = json.getAsJsonObject();
for (int i = 0; i < jsonArrayValue.size(); i++) {
JsonObject jsonObject = jsonArrayValue.getAsJsonObject();
if (jsonObject.has("question_type")) {
JsonElement elem = (JsonElement) jsonObject.get("question_type");
if (elem != null && !elem.isJsonNull() && !elem.isJsonArray()) {
String valuesString = elem.getAsString();
if (!TextUtils.isEmpty(valuesString)) {
options.setQuestionType(valuesString);
} else {
options.setQuestionType("");
}
//Do your other stuffs
}
}
}
return options;
}
}
}
This is working happy codeing

Storing an arraylist of custom objects (which have Strings, Dates, Lists, and more as fields) in shared preferences

I am trying to save an arraylist of clients in shared preferences, however I am getting out of memory error. I am new to this and can't figure out how to do this? I looked at a lot of pages on stackoverflow, but couldn't find one that would work for me or that also had an ArrayList of custom objects, where every object contains more ArrayLists with custom objects.
client object:
public class Client implements Serializable, Comparable<Client> {
private int clientID;
private String name;
private String phone;
private String email;
private String url;
private Double turnover;
private String visitAddress;
private String visitCity;
private String visitZipcode;
private String visitCountry;
private String postalAddress;
private String postalCity;
private String postalZipcode;
private String postalCountry;
private Drawable clientImage;
private List<Contact> contactList = new ArrayList<Contact>();
private List<Project> projectList = new ArrayList<Project>();
private List<Task> taskList = new ArrayList<Task>();
private List<Order> orderList = new ArrayList<Order>();
public Client(int clientID, String Name, String Phone, String Email, String URL, Double Turnover,
String VisitAddress, String VisitCity, String VisitZipcode, String VisitCountry,
String PostalAddress, String PostalCity, String PostalZipcode, String PostalCountry,
List contactList, List projectList, List taskList, List orderList){
super();
this.clientID = clientID;
this.name = Name;
this.phone = Phone;
this.email = Email;
this.url = URL;
this.turnover = Turnover;
this.visitAddress = VisitAddress;
this.visitCity = VisitCity;
this.visitZipcode = VisitZipcode;
this.visitCountry = VisitCountry;
this.postalAddress = PostalAddress;
this.postalCity = PostalCity;
this.postalZipcode = PostalZipcode;
this.postalCountry = PostalCountry;
this.contactList = contactList;
this.projectList = projectList;
this.taskList = taskList;
this.orderList = orderList;
}
public String getName() {
return name;
}
public String getPhone() {
return phone;
}
public String getEmail() {
return email;
}
public String getUrl() {
return url;
}
public Double getTurnover() {
return turnover;
}
public String getVisitAddress() {
return visitAddress;
}
public String getVisitCity() {
return visitCity;
}
public String getVisitZipcode() {
return visitZipcode;
}
public String getVisitCountry() {
return visitCountry;
}
public String getPostalAddress() {
return postalAddress;
}
public String getPostalCity() {
return postalCity;
}
public String getPostalZipcode() {
return postalZipcode;
}
public String getPostalCountry() {
return postalCountry;
}
public List<Contact> getContactList(){
return contactList;
}
public List<Project> getProjectList(){
return projectList;
}
public List<Task> getTaskList(){
return taskList;
}
public List<Order> getOrderList() {
return orderList;
}
public void setName(String name) {
this.name = name;
}
public void setPhone(String phone) {
this.phone = phone;
}
public void setEmail(String email) {
this.email = email;
}
public void setUrl(String url) {
this.url = url;
}
public void setTurnover(Double turnover) {
this.turnover = turnover;
}
public void setVisitAddress(String visitAddress) {
this.visitAddress = visitAddress;
}
public void setVisitCity(String visitCity) {
this.visitCity = visitCity;
}
public void setVisitZipcode(String visitZipcode) {
this.visitZipcode = visitZipcode;
}
public void setVisitCountry(String visitCountry) {
this.visitCountry = visitCountry;
}
public void setPostalAddress(String postalAddress) {
this.postalAddress = postalAddress;
}
public void setPostalCity(String postalCity) {
this.postalCity = postalCity;
}
public void setPostalZipcode(String postalZipcode) {
this.postalZipcode = postalZipcode;
}
public void setPostalCountry(String postalCountry) {
this.postalCountry = postalCountry;
}
public Drawable getClientImage() {
return clientImage;
}
public void setClientImage(Drawable clientImage) {
this.clientImage = clientImage;
}
public int getClientID() {
return clientID;
}
public void setClientID(int clientID) {
this.clientID = clientID;
}
underlying project object: (also with list of custom objects)
public class Project implements Serializable, Comparable<Project>{
private String clientName;
private String projectName;
private String projectDiscription;
private String projectStatus;
private GregorianCalendar projectDate;
private List<TimeSheet> projectTimeRegestrationList = new ArrayList<>();
private List<WorkOrder> workOrderList = new ArrayList<WorkOrder>();
public Project(String clientName, String projectName, String projectDiscription, String projectStatus, GregorianCalendar projectDate, List projectTimeRegestrationList, List workOrderList) {
this.projectName = projectName;
this.projectDiscription = projectDiscription;
this.projectStatus = projectStatus;
this.projectDate = projectDate;
this.clientName = clientName;
this.projectTimeRegestrationList = projectTimeRegestrationList;
this.workOrderList = workOrderList;
}
public String getProjectName() {
return projectName;
}
public void setProjectName(String projectName) {
this.projectName = projectName;
}
public String getProjectDiscription() {
return projectDiscription;
}
public void setProjectDiscription(String projectDiscription) {
this.projectDiscription = projectDiscription;
}
public String getProjectStatus() {
return projectStatus;
}
public void setProjectStatus(String projectStatus) {
this.projectStatus = projectStatus;
}
public GregorianCalendar getProjectDate() {
return projectDate;
}
public void setProjectDate(GregorianCalendar projectDate) {
this.projectDate = projectDate;
}
public String getClientName() {
return clientName;
}
public void setClientName(String clientName) {
this.clientName = clientName;
}
public List<TimeSheet> getProjectTimeRegestrationList() {
return projectTimeRegestrationList;
}
public List<WorkOrder> getWorkOrderList() {
return workOrderList;
}
now my specific question: is it possible to save this inside shared preferences, if yes, how do i do this, if no, how should i then locally safe this data.

you can use json to store them as a string in sharedpreference
for example if you want to store an object of your client class contaning a url ,country and phone
just write the following
try {
JSONArray jsonArray=new JSONArray();
JSONObject object1=new JSONObject();
object1.put("url","myurl");
object1.put("phone","myphonenumber");
object1.put("country","mycountry");
jsonArray.put(object1);
//adding another object
JSONObject object2=new JSONObject();
object2.put("url","anotherurl");
object2.put("phone","anotherphonenumber");
object2.put("country","anothercountry");
jsonArray.put(object2);
} catch (JSONException e) {
e.printStackTrace();
}
and than simply save it as a string by calling jsonArray.toString() in sharedpreference
and if your object that you want to store contains a list of another object you can easily save like for example if you have a url, country, and phone number which you want to save plus a list of another object containing the first and lastname you can save list as json object itself just like you did for the url,phone number and country as shown below
try {
JSONArray jsonArray=new JSONArray();
JSONObject object1=new JSONObject();
object1.put("url","myurl");
object1.put("phone","myphonenumber");
object1.put("country","mycountry");
//saving a list of another object contaning firstname and lastname
JSONArray listArray=new JSONArray();
//supposing your list contains 10 objects
for(int f=0;f<10;f++){
JSONObject listobject=new JSONObject();
listobject.put("firstname","myfirstname");
listobject.put("lastname","mylastname");
listArray.put(listobject);
}
//now the list array we added as an object of the jsonArray variable
JSONObject object2=new JSONObject(); //object2 containing the list of firstname and lastname
object2.put("list",listArray.toString());
jsonArray.put(object1);//object1 contains the url, phone, and country
jsonArray.put(object2);//object2 contains the list of firstname and lastname
} catch (JSONException e) {
e.printStackTrace();
}