阿超 > eclipse-collections

eclipse-collections

2022-07-06

java

志向和热爱是伟大行为的双翼。——歌德

之前分享了vavr，今天在分享一个同类框架eclipse-collections

官方文档：http://www.eclipse.org/collections/

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<dependency>
  <groupId>org.eclipse.collections</groupId>
  <artifactId>eclipse-collections-api</artifactId>
  <version>11.0.0</version>
</dependency>

<dependency>
  <groupId>org.eclipse.collections</groupId>
  <artifactId>eclipse-collections</artifactId>
  <version>11.0.0</version>
</dependency>

体验下，这是java8 Stream的：

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boolean anyPeopleHaveCats =
  this.people
    .stream()
    .anyMatch(person -> person.hasPet(PetType.CAT));

long countPeopleWithCats =
  this.people
    .stream()
    .filter(person -> person.hasPet(PetType.CAT))
    .count();

List<Person> peopleWithCats =
  this.people
    .stream()
    .filter(person -> person.hasPet(PetType.CAT))
    .collect(Collectors.toList());

用eclipse-collections：

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boolean anyPeopleHaveCats =
  this.people
    .anySatisfy(person -> person.hasPet(PetType.CAT));

int countPeopleWithCats =
  this.people
    .count(person -> person.hasPet(PetType.CAT));

MutableList<Person> peopleWithCats =
  this.people
    .select(person -> person.hasPet(PetType.CAT));

简短了原本的代码