如何忽略要存储在 DynamoDB 中的 JsonProperty

Question

Here is my POJO that I use to store in DynamoDB using DynamodbMapper

@DynamoDBTable(tableName = "Data")
// @JsonIgnoreProperties(value = { "content" })
public class Data {
    @DynamoDBRangeKey(attributeName = "Url")
    @DynamoDBAutoGeneratedKey
    @JsonProperty("url")
    private String url;

    @DynamoDBHashKey(attributeName = "UserName")
    @JsonProperty("userName")
    private String userName;

    @JsonProperty("title")
    @DynamoDBAttribute(attributeName = "Title")
    private String pasteTitle;

    @JsonProperty("content")
    private String content;

    @JsonProperty("date")
    @DynamoDBAttribute(attributeName = "Date")
    private String date;

}

Every time I run DynamoDBMapper.save(data) , it stores content as well even if it does not have DynamoDBAttribute annotation. By using @JsonIgnoreProperties(value = { "content" }) it makes the value as null and does not store the content. But I would like to store the content in S3 and not DynamoDB and hence looking for a way to ignore this in DynamoDBAttribute.

Answer 1

You can use @DynamoDBIgnore - AWS documentation

In your example:

    @DynamoDbIgnore
    public String getContent() {
        return content;
    }