Just to update, I tried the JSON Parser to read the nodes and modify those.
But, I am struggling with updating those nodes in the file again, because
with JSONParser, I can read, and JSONGenerator just overwrites the entire
file.
On Monday, October 14, 2019 at 5:28:09 PM UTC-4, Lalit Patil wrote:
>
> Hi
>
> I am trying to use Jackson streaming API to update data in a JSON file. I
> want to achieve this without reading the entire file or creating a copy of
> the file. For example, I might want to update the age of index 2 below from
> 40 to 20. I could read the entire tree, and then update the node and write
> the entire tree back. However, I am hoping to read each node and when I
> find index 1, update only that index and write in the same file without
> having to write the rest of the data.
>
> Is it possible to achieve this using Jackson?
>
>
> [
> {
> "index": 0,
> "age": 36,
> "name": {
> "first": "Hernandez",
> "last": "Rutledge"
> }
> },
> {
> "index": 1,
> "age": 40,
> "name": {
> "first": "Clarissa",
> "last": "Kent"
> }
> },
> {
> "index": 2,
> "age": 34,
> "name": {
> "first": "Carver",
> "last": "Melton"
> }
> }
> ]
>
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