com.hazelcast.jet.datamodel

Class TwoBags<T0,T1>

java.lang.Object

com.hazelcast.jet.datamodel.TwoBags<T0,T1>

Type Parameters:

T0 - type of items in bag-0

T1 - type of items in bag-1

public final class TwoBags<T0,T1>
extends Object

A container of two bags (collections), each with its own element type. Bags are identified by their index: 0 and 1. Useful as a container of co-grouped data.

Method Summary

Modifier and Type	Method and Description
Collection<T0>	bag0() Retrieves the bag at index 0.
Collection<T1>	bag1() Retrieves the bag at index 1.
void	combineWith(TwoBags<T0,T1> that) Combines this and the supplied container by merging all the supplied container's data into this one.
void	deduct(TwoBags<T0,T1> that) Deducts the supplied container from this one by removing all the items that the supplied one contains.
boolean	equals(Object o)
TwoBags<T0,T1>	finish() Returns a safe copy of this container.
int	hashCode()
String	toString()
static <E0,E1> TwoBags<E0,E1>	twoBags() Returns a new, empty TwoBags container.
static <E0,E1> TwoBags<E0,E1>	twoBags(Collection<E0> bag0, Collection<E1> bag1) Returns a new TwoBags container populated with the supplied collections.

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Method Detail

twoBags

@Nonnull
public static <E0,E1> TwoBags<E0,E1> twoBags()

Returns a new, empty TwoBags container.

twoBags

@Nonnull
public static <E0,E1> TwoBags<E0,E1> twoBags(@Nonnull
                                                      Collection<E0> bag0,
                                                      @Nonnull
                                                      Collection<E1> bag1)

Returns a new TwoBags container populated with the supplied collections. Doesn't retain the supplied collections, but copies them into newly created ones.

bag0

@Nonnull
public Collection<T0> bag0()

Retrieves the bag at index 0.

bag1

@Nonnull
public Collection<T1> bag1()

Retrieves the bag at index 1.

combineWith

public void combineWith(@Nonnull
                        TwoBags<T0,T1> that)

Combines this and the supplied container by merging all the supplied container's data into this one. Leaves the supplied container unchanged.

deduct

public void deduct(@Nonnull
                   TwoBags<T0,T1> that)

Deducts the supplied container from this one by removing all the items that the supplied one contains. Leaves the supplied container unchanged.

finish

public TwoBags<T0,T1> finish()

Returns a safe copy of this container.

equals

public boolean equals(Object o)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

toString

public String toString()

Overrides:

toString in class Object