Constructor
new MigrationState()
Create MigrationState
Properties:
| Name | Type | Description |
|---|---|---|
inProgress |
Boolean | is/was migration in progress NOTE: If inProgress is true, we know lastMigration + 1 was the one in progress. |
lastMigration |
Number | last migration NOTE: Migration numbers start from 1. 0 - means there is no migration. |
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Methods
getSize() → {Number}
Get size of the encoded migration state object.
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Returns:
- Type
- Number
inject(obj)
Inject properties from another state.
Parameters:
| Name | Type | Description |
|---|---|---|
obj |
MigrationState |
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Returns:
MigrationState;
read(br) → {MigrationState}
Deserialize migration state.
Parameters:
| Name | Type | Description |
|---|---|---|
br |
BufferReader |
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Returns:
- Type
- MigrationState
write(bw) → {BufferWriter}
Serialize migration state.
Parameters:
| Name | Type | Description |
|---|---|---|
bw |
BufferWriter |
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Returns:
- Type
- BufferWriter