Struct ethcore::migrations::blocks::V8
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pub struct V8(_);
Compressing migration.
Trait Implementations
impl Default for V8
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impl SimpleMigration for V8
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fn version(&self) -> u32
Version of database after the migration.
fn columns(&self) -> Option<u32>
Number of columns in database after the migration.
fn simple_migrate(&mut self,
key: Vec<u8>,
value: Vec<u8>)
-> Option<(Vec<u8>, Vec<u8>)>
key: Vec<u8>,
value: Vec<u8>)
-> Option<(Vec<u8>, Vec<u8>)>
Should migrate existing object to new database. Returns None
if the object does not exist in new version of database. Read more