public interface RichInitializer<V, K> {
    V apply(K key);
}


public interface RichValueMapper<K, V, VR> {
    VR apply(final K key, final V value, final RecordContext recordContext);
}

public interface RichValueJoiner<K, V1, V2, VR> {
    VR apply(final K key, final V1 value1, final V2 value2, final RecordContext recordContext);
}

public interface RichKeyValueMapper<K, V, VR> {
    VR apply(final K key, final V value, final RecordContext recordContext);
}

public interface RichReducer<K, V> {
    V apply(final K key, final V value1, final V value2, final RecordContext recordContext);
}

public interface RichAggregator<K, V, VA> {
    VA apply(final K key, final V value, final VA aggregate, final RecordContext recordContext);
}
 
public interface RichForeachAction<K, V> {
    void apply(final K key, final V value, final RecordContext recordContext);
}

public interface RichPredicate<K, V> {
    boolean test(final K key, final V value, final RecordContext recordContext);
}

 
public interface RichMerger<K, V> {
	V apply(final K aggKey, final V aggOne, final V aggTwo, final RecordContext recordContext);
}

 
 
public interface RichValueTransformer<K, V, VR> {
	void init(final ProcessorContext context);

	VR transform(final V value);

	@Deprecated
	VR punctuate(final K key, final long timestamp);

	void close();
}


 
public interface RichValueTransformerSupplier<K, V, VR> {

    RichValueTransformer<K, V, VR> get();
}