hazelcast/hazelcast

Add getAll to MultiMap

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#3840 opened on Oct 13, 2014

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 (24 comments) (0 reactions) (0 assignees)Java (5,737 stars) (1,795 forks)batch import
Module: MultiMapPriority: MediumSource: CommunityTeam: CoreType: Enhancementgood first issue

Description

Please add a getAll method to MultiMap to allow bulk retreval.

The signature should be:

public MultiMap<K, V> getAll(Set<K> keys)

And should behave like IMap.getAll(Set<K>)

Contributor guide

Tech stack
java
Domain
backenddatabase
Issue type
feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-3 hours
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
stale
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
clear
Prerequisites
Basic JavaHazelcast MultiMap knowledge
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
60
Research direction
The issue requests adding a getAll method to MultiMap. Start by examining the existing MultiMap interface and its implementations in the Hazelcast codebase (e.g., com.hazelcast.core.MultiMap). Look at how IMap.getAll(Set<K>) is implemented for reference. Check the comments for additional context or requirements. Ensure the new method returns a MultiMap with entries for the given keys.