尽管它并不严格符合构建器模式，但简短的答案是肯定的。有点。
缺少的部分无法调用
.build()以实例化枚举常量，因为build（）不能使用
new。但是您可以从构建器模式中获得很多好处。面对现实，您不能使用静态工厂方法，并且枚举常量的内联子类化很奇怪。
这是使用国家枚举的示例。
package app;import org.apache.commons.lang.StringUtils;import javax.annotation.Nullable;import java.util.EnumSet;import java.util.Set;import static app.Language.*;import static com.google.common.base.Preconditions.*;enum Language { ITALIAN, ENGLISH, MALTESE}public enum Country { ITALY(new Builder(1, "Italy").addLanguage(ITALIAN)), MALTA(new Builder(2, "Malta").addLanguages(MALTESE, ENGLISH, ITALIAN).setPopulation(450_000)); final private int id; final private String name; final private Integer population; final private Set<Language> languages; private static class Builder { private int id; private String name; private Integer population; private Set<Language> languages = EnumSet.noneOf(Language.class); public Builder(int id, String name) { checkArgument(!StringUtils.isBlank(name)); this.id = id; this.name = name; } public Builder setPopulation(int population) { checkArgument(population > 0); this.population = population; return this; } public Builder addLanguage(Language language) { checkNotNull(language); this.languages.add(language); return this; } public Builder addLanguages(Language... language) { checkNotNull(language); this.languages.addAll(languages); return this; } } private Country(Builder builder) { this.id = builder.id; this.name = builder.name; this.population = builder.population; this.languages = builder.languages; checkState(!this.languages.isEmpty()); } public int getId() { return id; } public String getName() { return name; } @Nullable public Integer getPopulation() { return population; } public Set<Language> getLanguages() { return languages; }}如果您有构建常量的常用方法，甚至可以将静态工厂方法放入构建器中。
因此，它不是Bloch的构建器，但非常接近。
