StorageConverter

public abstract class StorageConverter<I, E extends Entity<I, S>, S extends EntityState> implements Serializable

An abstract base for converters of entities into EntityRecord.

Constructors

protected void StorageConverter(TypeUrl entityStateType, EntityFactory<E> factory, FieldMask fieldMask)

protected E doBackward(EntityRecord entityRecord)

protected EntityRecord doForward(E entity)

Obtains the entity factory used by the converter.

protected TypeUrl entityStateType()

Obtains the type URL of the state of entities which this converter builds.

public boolean equals(Object obj)

protected FieldMask fieldMask()

Obtains the field mask used by this converter to trim the state of entities before the state is injected into entities.

public int hashCode()

protected abstract void injectState(E entity, S state, EntityRecord entityRecord)

Derived classes must implement providing state injection into the passed entity.

protected void updateBuilder(Builder builder, E entity)

Derived classes may override to additionally tune the passed entity builder.

public abstract StorageConverter<I, E, S> withFieldMask(FieldMask fieldMask)

Creates a copy of this converter modified with the passed filed mask.