JSON deserialiser to set custom properties in POJO
0
I'm using Jackson for json mapping on java POJOs. What I want is to set two properties in POJO from a value in JSON by splitting the value.
{
"email": "xyz@hello.com",
}
and POJO is
public class TestPojo {
@JsonProperty("email")
private String emailAddress;
/*is there any annotation available that I can split the email
address with a delimiter which is '@' to first and second
properties*/
private String first; //gives value xyz
private String second;//gives value hello.com
}
Thanks for your help in advance.
java json parsing jackson deserialization
edited Nov 13 '18 at 14:27
Hülya
462119
asked Nov 13 '18 at 14:13
anzanz
7319
add a comment |
0
I'm using Jackson for json mapping on java POJOs. What I want is to set two properties in POJO from a value in JSON by splitting the value.
{
"email": "xyz@hello.com",
}
and POJO is
public class TestPojo {
@JsonProperty("email")
private String emailAddress;
/*is there any annotation available that I can split the email
address with a delimiter which is '@' to first and second
properties*/
private String first; //gives value xyz
private String second;//gives value hello.com
}
Thanks for your help in advance.
java json parsing jackson deserialization
edited Nov 13 '18 at 14:27
Hülya
462119
asked Nov 13 '18 at 14:13
anzanz
7319
add a comment |
0
0
0
I'm using Jackson for json mapping on java POJOs. What I want is to set two properties in POJO from a value in JSON by splitting the value.
{
"email": "xyz@hello.com",
}
and POJO is
public class TestPojo {
@JsonProperty("email")
private String emailAddress;
/*is there any annotation available that I can split the email
address with a delimiter which is '@' to first and second
properties*/
private String first; //gives value xyz
private String second;//gives value hello.com
}
Thanks for your help in advance.
java json parsing jackson deserialization
edited Nov 13 '18 at 14:27
Hülya
462119
asked Nov 13 '18 at 14:13
anzanz
7319
I'm using Jackson for json mapping on java POJOs. What I want is to set two properties in POJO from a value in JSON by splitting the value.
{
"email": "xyz@hello.com",
}
and POJO is
public class TestPojo {
@JsonProperty("email")
private String emailAddress;
/*is there any annotation available that I can split the email
address with a delimiter which is '@' to first and second
properties*/
private String first; //gives value xyz
private String second;//gives value hello.com
}
Thanks for your help in advance.
java json parsing jackson deserialization
java json parsing jackson deserialization
edited Nov 13 '18 at 14:27
Hülya
462119
asked Nov 13 '18 at 14:13
anzanz
7319
edited Nov 13 '18 at 14:27
Hülya
462119
asked Nov 13 '18 at 14:13
anzanz
7319
edited Nov 13 '18 at 14:27
Hülya
462119
edited Nov 13 '18 at 14:27
Hülya
462119
edited Nov 13 '18 at 14:27
Hülya
462119
462119
asked Nov 13 '18 at 14:13
anzanz
7319
asked Nov 13 '18 at 14:13
anzanz
7319
asked Nov 13 '18 at 14:13
anzanz
7319
7319
add a comment |
add a comment |
1 Answer
1
active
oldest
votes
0
You can hijack that logic in your public setter.
For instance:
class MyPojo {
// no need for this annotation here actually, covered by setter
// at least for deserialization
@JsonProperty
String email;
String first;
String last;
@JsonProperty("email")
public void setEmail(String email) {
this.email = email;
String split = email.split("@");
// TODO check length etc.
this.first = split[0];
this.last = split[1];
}
// just for testing
@Override
public String toString() {
return String.format(
"email: %s, first: %s, last: %s%n", email, first, last
);
}
}
Then, somewhere else...
String json = "{ "email": "xyz@hello.com"}";
ObjectMapper om = new ObjectMapper();
MyPojo pojo = om.readValue(json, MyPojo.class);
System.out.println(pojo);
Output
email: xyz@hello.com, first: xyz, last: hello.com
answered Nov 13 '18 at 14:19
MenaMena
40.2k116679
Unfortunately, I am using an auto-generated code with abstract methods in my base pojo. So cannot hijack setter here.
– anz
Nov 13 '18 at 14:20
1
@anz then you could use a custom de-serializer, and set thefirstandlastvalues there. This would require that you have setter methods for those, and of course will be a lot more tedious than just editing your pojo...
– Mena
Nov 13 '18 at 14:22
Even then, how can the deserializer will get invoked? I don't have those properties present in the json.
– anz
Nov 13 '18 at 14:25
@anz you don't need to annotate you pojo with@JsonDeserializeif you can't modify it, you can register the de-serializer to your ObjectMapper. Edit take a look here if you're looking for a decent tutorial.
– Mena
Nov 13 '18 at 14:30
I tried with ObjectMapper, but it's expecting to return the same POJO object from the deserialize method. Is there any other way by modifying at property level through deserialization?
– anz
Nov 13 '18 at 14:49
|
show 3 more comments
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
0
You can hijack that logic in your public setter.
For instance:
class MyPojo {
// no need for this annotation here actually, covered by setter
// at least for deserialization
@JsonProperty
String email;
String first;
String last;
@JsonProperty("email")
public void setEmail(String email) {
this.email = email;
String split = email.split("@");
// TODO check length etc.
this.first = split[0];
this.last = split[1];
}
// just for testing
@Override
public String toString() {
return String.format(
"email: %s, first: %s, last: %s%n", email, first, last
);
}
}
Then, somewhere else...
String json = "{ "email": "xyz@hello.com"}";
ObjectMapper om = new ObjectMapper();
MyPojo pojo = om.readValue(json, MyPojo.class);
System.out.println(pojo);
Output
email: xyz@hello.com, first: xyz, last: hello.com
answered Nov 13 '18 at 14:19
MenaMena
40.2k116679
Unfortunately, I am using an auto-generated code with abstract methods in my base pojo. So cannot hijack setter here.
– anz
Nov 13 '18 at 14:20
1
@anz then you could use a custom de-serializer, and set thefirstandlastvalues there. This would require that you have setter methods for those, and of course will be a lot more tedious than just editing your pojo...
– Mena
Nov 13 '18 at 14:22
Even then, how can the deserializer will get invoked? I don't have those properties present in the json.
– anz
Nov 13 '18 at 14:25
@anz you don't need to annotate you pojo with@JsonDeserializeif you can't modify it, you can register the de-serializer to your ObjectMapper. Edit take a look here if you're looking for a decent tutorial.
– Mena
Nov 13 '18 at 14:30
I tried with ObjectMapper, but it's expecting to return the same POJO object from the deserialize method. Is there any other way by modifying at property level through deserialization?
– anz
Nov 13 '18 at 14:49
|
show 3 more comments
0
You can hijack that logic in your public setter.
For instance:
class MyPojo {
// no need for this annotation here actually, covered by setter
// at least for deserialization
@JsonProperty
String email;
String first;
String last;
@JsonProperty("email")
public void setEmail(String email) {
this.email = email;
String split = email.split("@");
// TODO check length etc.
this.first = split[0];
this.last = split[1];
}
// just for testing
@Override
public String toString() {
return String.format(
"email: %s, first: %s, last: %s%n", email, first, last
);
}
}
Then, somewhere else...
String json = "{ "email": "xyz@hello.com"}";
ObjectMapper om = new ObjectMapper();
MyPojo pojo = om.readValue(json, MyPojo.class);
System.out.println(pojo);
Output
email: xyz@hello.com, first: xyz, last: hello.com
answered Nov 13 '18 at 14:19
MenaMena
40.2k116679
Unfortunately, I am using an auto-generated code with abstract methods in my base pojo. So cannot hijack setter here.
– anz
Nov 13 '18 at 14:20
1
@anz then you could use a custom de-serializer, and set thefirstandlastvalues there. This would require that you have setter methods for those, and of course will be a lot more tedious than just editing your pojo...
– Mena
Nov 13 '18 at 14:22
Even then, how can the deserializer will get invoked? I don't have those properties present in the json.
– anz
Nov 13 '18 at 14:25
@anz you don't need to annotate you pojo with@JsonDeserializeif you can't modify it, you can register the de-serializer to your ObjectMapper. Edit take a look here if you're looking for a decent tutorial.
– Mena
Nov 13 '18 at 14:30
I tried with ObjectMapper, but it's expecting to return the same POJO object from the deserialize method. Is there any other way by modifying at property level through deserialization?
– anz
Nov 13 '18 at 14:49
|
show 3 more comments
0
0
0
You can hijack that logic in your public setter.
For instance:
class MyPojo {
// no need for this annotation here actually, covered by setter
// at least for deserialization
@JsonProperty
String email;
String first;
String last;
@JsonProperty("email")
public void setEmail(String email) {
this.email = email;
String split = email.split("@");
// TODO check length etc.
this.first = split[0];
this.last = split[1];
}
// just for testing
@Override
public String toString() {
return String.format(
"email: %s, first: %s, last: %s%n", email, first, last
);
}
}
Then, somewhere else...
String json = "{ "email": "xyz@hello.com"}";
ObjectMapper om = new ObjectMapper();
MyPojo pojo = om.readValue(json, MyPojo.class);
System.out.println(pojo);
Output
email: xyz@hello.com, first: xyz, last: hello.com
answered Nov 13 '18 at 14:19
MenaMena
40.2k116679
You can hijack that logic in your public setter.
For instance:
class MyPojo {
// no need for this annotation here actually, covered by setter
// at least for deserialization
@JsonProperty
String email;
String first;
String last;
@JsonProperty("email")
public void setEmail(String email) {
this.email = email;
String split = email.split("@");
// TODO check length etc.
this.first = split[0];
this.last = split[1];
}
// just for testing
@Override
public String toString() {
return String.format(
"email: %s, first: %s, last: %s%n", email, first, last
);
}
}
Then, somewhere else...
String json = "{ "email": "xyz@hello.com"}";
ObjectMapper om = new ObjectMapper();
MyPojo pojo = om.readValue(json, MyPojo.class);
System.out.println(pojo);
Output
email: xyz@hello.com, first: xyz, last: hello.com
answered Nov 13 '18 at 14:19
MenaMena
40.2k116679
edited Nov 13 '18 at 14:20
answered Nov 13 '18 at 14:19
MenaMena
40.2k116679
answered Nov 13 '18 at 14:19
MenaMena
40.2k116679
answered Nov 13 '18 at 14:19
MenaMena
40.2k116679
40.2k116679
Unfortunately, I am using an auto-generated code with abstract methods in my base pojo. So cannot hijack setter here.
– anz
Nov 13 '18 at 14:20
1
@anz then you could use a custom de-serializer, and set thefirstandlastvalues there. This would require that you have setter methods for those, and of course will be a lot more tedious than just editing your pojo...
– Mena
Nov 13 '18 at 14:22
Even then, how can the deserializer will get invoked? I don't have those properties present in the json.
– anz
Nov 13 '18 at 14:25
@anz you don't need to annotate you pojo with@JsonDeserializeif you can't modify it, you can register the de-serializer to your ObjectMapper. Edit take a look here if you're looking for a decent tutorial.
– Mena
Nov 13 '18 at 14:30
I tried with ObjectMapper, but it's expecting to return the same POJO object from the deserialize method. Is there any other way by modifying at property level through deserialization?
– anz
Nov 13 '18 at 14:49
|
show 3 more comments
Unfortunately, I am using an auto-generated code with abstract methods in my base pojo. So cannot hijack setter here.
– anz
Nov 13 '18 at 14:20
1
@anz then you could use a custom de-serializer, and set thefirstandlastvalues there. This would require that you have setter methods for those, and of course will be a lot more tedious than just editing your pojo...
– Mena
Nov 13 '18 at 14:22
Even then, how can the deserializer will get invoked? I don't have those properties present in the json.
– anz
Nov 13 '18 at 14:25
@anz you don't need to annotate you pojo with@JsonDeserializeif you can't modify it, you can register the de-serializer to your ObjectMapper. Edit take a look here if you're looking for a decent tutorial.
– Mena
Nov 13 '18 at 14:30
I tried with ObjectMapper, but it's expecting to return the same POJO object from the deserialize method. Is there any other way by modifying at property level through deserialization?
– anz
Nov 13 '18 at 14:49
Unfortunately, I am using an auto-generated code with abstract methods in my base pojo. So cannot hijack setter here.
– anz
Nov 13 '18 at 14:20
Unfortunately, I am using an auto-generated code with abstract methods in my base pojo. So cannot hijack setter here.
– anz
Nov 13 '18 at 14:20
1
1
@anz then you could use a custom de-serializer, and set the
first and last values there. This would require that you have setter methods for those, and of course will be a lot more tedious than just editing your pojo...– Mena
Nov 13 '18 at 14:22
@anz then you could use a custom de-serializer, and set the
first and last values there. This would require that you have setter methods for those, and of course will be a lot more tedious than just editing your pojo...– Mena
Nov 13 '18 at 14:22
Even then, how can the deserializer will get invoked? I don't have those properties present in the json.
– anz
Nov 13 '18 at 14:25
Even then, how can the deserializer will get invoked? I don't have those properties present in the json.
– anz
Nov 13 '18 at 14:25
@anz you don't need to annotate you pojo with
@JsonDeserialize if you can't modify it, you can register the de-serializer to your ObjectMapper. Edit take a look here if you're looking for a decent tutorial.– Mena
Nov 13 '18 at 14:30
@anz you don't need to annotate you pojo with
@JsonDeserialize if you can't modify it, you can register the de-serializer to your ObjectMapper. Edit take a look here if you're looking for a decent tutorial.– Mena
Nov 13 '18 at 14:30
I tried with ObjectMapper, but it's expecting to return the same POJO object from the deserialize method. Is there any other way by modifying at property level through deserialization?
– anz
Nov 13 '18 at 14:49
I tried with ObjectMapper, but it's expecting to return the same POJO object from the deserialize method. Is there any other way by modifying at property level through deserialization?
– anz
Nov 13 '18 at 14:49
|
show 3 more comments
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