ph collection - phax/ph-commons GitHub Wiki

Extended collection classes with fluent APIs, multi maps, and specialized data structures.

Highlights:

CommonsArrayList, CommonsHashMap, CommonsHashSet, CommonsLinkedHashMap, etc. - collection implementations with additional convenience methods (findAll, findFirst, findFirstMapped, etc.)
ICommonsList, ICommonsMap, ICommonsSet - fluent collection interfaces
CollectionHelper - null-safe collection creation and manipulation
Multi maps: MultiHashMapArrayListBased, MultiHashMapHashSetBased, MultiTreeMapArrayListBased, etc.
LRUMap - Least Recently Used cache map
SoftHashMap / SoftLinkedHashMap - soft reference maps for memory-sensitive caching
RingBufferFifo / RingBufferLifo - ring buffer implementations
IHasChildren / IChildrenProvider - hierarchy support interfaces

Maven usage

Add the following to your pom.xml to use this artifact:

<dependency>
  <groupId>com.helger.commons</groupId>
  <artifactId>ph-collection</artifactId>
  <version>x.y.z</version>
</dependency>

Note: the Maven groupId changed in v10 from com.helger to com.helger.commons