org.talend.sdk.component.api.component

Interface MigrationHandler

public interface MigrationHandler

Migrate a tcomp data instance from one version to another one. This uses a flat format to make any conversion very easy and an "untyped" structure to avoid

• to require the type to be passed through the layers
• to require to instantiate unknown objects

This is linked to a component through Version to ensure cross inputs can be handled.

Method Summary

Modifier and Type	Method and Description
Map<String,String>	migrate(int incomingVersion, Map<String,String> incomingData)

Method Detail

migrate

Map<String,String> migrate(int incomingVersion,
                           Map<String,String> incomingData)

Parameters:

incomingVersion - the version of associatedData values.

incomingData - the data sent from the caller. Keys are using the path of the property as in component metadata.

Returns:

the set of properties for the current version.