android - Room Migration With Complex Change

Question

I have to migrate my application from one version to another. The changes in my table are a bit complex and I do not know how to migrate them.

I know that if we add a column we can write an Alter query on the table. But my table has 2 changes and I need help in migrating those.

My Exiting Table

String Comment;
String Text;
String Option;
String Type;
String Phone;

My New Table

String Comment;
String Text;
String Option;
String Type;
String Phone;

//NEW COLUMNS

@SerializedName("EtaMessage")
String ETA

@SerializedName("ChipInfoVOs")
List<Info>chipInformation;

How can I write an Alter Query to migrate to this table. It includes a Type Converter. I read about another way to migrate

• Create a new table
• Copy existing data to new table
• Drop Old table
• Rename new table as old table name

But again, How do I write query for @SerializedName and List type.

Please help, thanks.

Answer 1

等待大神答复