Lets say we have an object of Class Person with all String parameters :
Class Person {
String name;
String email;
}
Person p = new Person();
p.name = "ABC";
p.email = "[email protected]";
How do we convert object p to ArrayList of NameValue Pair :
Output should be a ArrayList<NameValuePair> with following content :
"name" : "ABC"
"email" : "[email protected]"
Here you are .. it's a dynamic so you can use it for any object .. I'm using the reflection
public static void main(String[] args) {
Person person = new Person("Ali", "[email protected]");
try {
System.out.println(getObjectNameValuePairs(person));
} catch (IllegalArgumentException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IllegalAccessException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
public static ArrayList<NameValuePair> getObjectNameValuePairs(Object obj) throws IllegalArgumentException, IllegalAccessException {
ArrayList<NameValuePair> list = new ArrayList<NameValuePair>();
for (Field field : obj.getClass().getDeclaredFields()) {
field.setAccessible(true); // if you want to modify private fields
NameValuePair nameValuePair = new NameValuePair();
nameValuePair.setName(field.getName());
nameValuePair.setValue(field.get(obj));
list.add(nameValuePair);
}
return list;
}
this output will be
[[name:Ali], [email:[email protected]]]
considering that the NameValuePair implementation is
public class NameValuePair {
private String name;
private Object value;
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public Object getValue() {
return value;
}
public void setValue(Object value) {
this.value = value;
}
@Override
public String toString() {
return "["+ name + ":" + value + "]";
}
}
I hope this could help!
Add in Person a get method:
public NameValuePair getAsNameValuePair() {
NameValuePair pair=new BasicNameValuePair(this.getName,this.getEmail);
return pair;
}
If you want to store the person in an array:
public List<NameValuePair> getAsNameValuePair() {
List<NameValuePair> pairs = new ArrayList<NameValuePair>();
pairs.add(new BasicNameValuePair("name", this.getName);
pairs.add(new BasicNameValuePair("email", this.getEmail);
return pairs;
}
But maybe is better option to use a Map instead...
Following way you can do it.
Map<String, String> map = new HashMap<String, String>();
map.put(p.name, p.email);
or you could do like this
Map<String, Person> map = new HashMap<String, Person>();
map.put(p.name, p);
You can add array list to name value pair as mentioned in the code.Just convert array list to string by .toString() method.
kk = new ArrayList<NameValuePair>();
kk.add(new BasicNameValuePair("task_id",task_id.toString()));
kk.add(new BasicNameValuePair("task_status",task_status.toString()));
kk.add(new BasicNameValuePair("task_remarks",task_remarks.toString()));
kk.add(new BasicNameValuePair("task_rca",task_rca.toString()));
kk.add(newBasicNameValuePair("equip_serial_no",equip_serial_no.toString()));
ABCand value as[email protected]