For migration documents between different MongoDB collections, I read items via MongoCursorItemReader based on a filter and then write these data using ItemWriter as shown below. In order to prevent duplicate key error, I remove the items based on the same filter (query).

For migration documents between different MongoDB collections, I read items via MongoCursorItemReader based on a filter and then write these data using ItemWriter as shown below. In order to prevent duplicate key error, I remove the items based on the same filter (query).

For migration documents between different MongoDB collections, I read items via MongoCursorItemReader based on a filter and then write these data using ItemWriter as shown below. In order to prevent duplicate key error, I remove the items based on the same filter (query).

For migration documents between different MongoDB collections, I read items via MongoCursorItemReader based on a filter and then write these data using ItemWriter as shown below. In order to prevent duplicate key error, I remove the items based on the same filter (query).

For migration documents between different MongoDB collections, I read items via MongoCursorItemReader based on a filter and then write these data using ItemWriter as shown below. In order to prevent duplicate key error, I remove the items based on the same filter (query).

For migration documents between different MongoDB collections, I read items via MongoCursorItemReader based on a filter and then write these data using ItemWriter as shown below. In order to prevent duplicate key error, I remove the items based on the same filter (query).

I have the following Spring Batch config with the related ItemReader and ItemWriter and try to read and copy filtered data per collection in MongoDB. In this implementation, I retrieve colectionName – query parameters as a map and loop through it to insert each collection based on the corresponding query. However, I read the related data via ItemReader but could not synchronise each collection read & write operations. I need to read each collection and write only that collection data (or read multiple collections based on the query and then write all of them at once). So, how to achieve this?

I have the following Spring Batch config with the related ItemReader and ItemWriter and try to read and copy filtered data per collection in MongoDB. In this implementation, I retrieve colectionName – query parameters as a map and loop through it to insert each collection based on the corresponding query. However, I read the related data via ItemReader but could not synchronise each collection read & write operations. I need to read each collection and write only that collection data (or read multiple collections based on the query and then write all of them at once). So, how to achieve this?

I have the following Spring Batch config with the related ItemReader and ItemWriter and try to read and copy filtered data per collection in MongoDB. In this implementation, I retrieve colectionName – query parameters as a map and loop through it to insert each collection based on the corresponding query. However, I read the related data via ItemReader but could not synchronise each collection read & write operations. I need to read each collection and write only that collection data (or read multiple collections based on the query and then write all of them at once). So, how to achieve this?

I have the following Spring Batch config with the related ItemReader and ItemWriter and try to read and copy filtered data per collection in MongoDB. In this implementation, I retrieve colectionName – query parameters as a map and loop through it to insert each collection based on the corresponding query. However, I read the related data via ItemReader but could not synchronise each collection read & write operations. I need to read each collection and write only that collection data (or read multiple collections based on the query and then write all of them at once). So, how to achieve this?