ProjectionMigration

public abstract class ProjectionMigration<I, P extends Projection<I, S, B>, S extends EntityState, B extends ValidatingBuilder<S>> extends Migration<I, E, S>

A Migration applied to a ProcessManager instance.

Constructors

protected Transaction<I, P, S, ? extends Object> startTransaction(P entity)

Opens a transaction on an entity.

public Function<T, V> andThen<V>(Function<? extends Object, ? extends V> after)

public abstract R apply(T p)

public Function<V, R> compose<V>(Function<? extends Object, ? extends T> before)

protected final I id()

Returns the ID of an entity under migration.

public static Function<T, T> identity<T>()

protected final boolean isArchived()

Returns true if the entity under migration is archived.

protected final boolean isDeleted()

Returns true if the entity under migration is deleted.

protected final void markArchived()

Marks the entity under migration as archived.

protected final void markDeleted()

Marks the entity under migration as deleted.

protected final void removeFromStorage()

Configures the migration operation to delete the entity record from the storage.

protected final Version version()

Returns the version of entity under migration.