com.fpinjava.common.Function类的使用及代码示例

x33g5p2x  于2022-01-19 转载在 其他  
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本文整理了Java中com.fpinjava.common.Function类的一些代码示例,展示了Function类的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台,是从一些精选项目中提取出来的代码,具有较强的参考意义,能在一定程度帮忙到你。Function类的具体详情如下:
包路径:com.fpinjava.common.Function
类名称:Function

Function介绍

暂无

代码示例

代码示例来源:origin: fpinjava/fpinjava

@Override
 public <U> Result<U> flatMap(Function<V, Result<U>> f) {
  return f.apply(value);
 }
}

代码示例来源:origin: fpinjava/fpinjava

@Override
public <B> B foldLeft(B identity, Function<B, Function<A, B>> f, Function<B, Function<B, B>> g) {
 // Post order right:
 return g.apply(right.foldLeft(identity, f, g)).apply(f.apply(left.foldLeft(identity, f, g)).apply(this.value));
}

代码示例来源:origin: fpinjava/fpinjava

@Override
public <B> B foldRight(B identity, Function<A, Function<B, B>> f, Function<B, Function<B, B>> g) {
 // Pre order left
 return g.apply(f.apply(this.value).apply(left.foldRight(identity, f, g))).apply(right.foldRight(identity, f, g));
}

代码示例来源:origin: fpinjava/fpinjava

@Override
public <B> B foldLeft(B identity, Function<B, Function<A, B>> f, Function<B, Function<B, B>> g) {
 // Post order right:
 return g.apply(right.foldLeft(identity, f, g)).apply(f.apply(left.foldLeft(identity, f, g)).apply(this.value));
}

代码示例来源:origin: fpinjava/fpinjava

@Override
public <B> B foldLeft(B identity, Function<B, Function<A, B>> f, Function<B, Function<B, B>> g) {
 // Post order right:
 return g.apply(right.foldLeft(identity, f, g)).apply(f.apply(left.foldLeft(identity, f, g)).apply(this.value));
}

代码示例来源:origin: fpinjava/fpinjava

@Override
public <B> B foldLeft(B identity, Function<B, Function<A, B>> f, Function<B, Function<B, B>> g) {
 // Post order right:
 return g.apply(right.foldLeft(identity, f, g)).apply(f.apply(left.foldLeft(identity, f, g)).apply(this.value));
}

代码示例来源:origin: fpinjava/fpinjava

@Override
public <B> B foldRight(B identity, Function<A, Function<B, B>> f, Function<B, Function<B, B>> g) {
 // Pre order left
 return g.apply(f.apply(this.value).apply(left.foldRight(identity, f, g))).apply(right.foldRight(identity, f, g));
}

代码示例来源:origin: fpinjava/fpinjava

@Override
public <B> B foldLeft(B identity, Function<B, Function<A, B>> f, Function<B, Function<B, B>> g) {
 // Post order right:
 return g.apply(right.foldLeft(identity, f, g)).apply(f.apply(left.foldLeft(identity, f, g)).apply(this.value));
}

代码示例来源:origin: fpinjava/fpinjava

@Override
public <B> B foldLeft(B identity, Function<B, Function<A, B>> f, Function<B, Function<B, B>> g) {
 // Post order right:
 return g.apply(right.foldLeft(identity, f, g)).apply(f.apply(left.foldLeft(identity, f, g)).apply(this.value));
}

代码示例来源:origin: fpinjava/fpinjava

@Override
public <B> B foldRight(B identity, Function<A, Function<B, B>> f, Function<B, Function<B, B>> g) {
 // Pre order left
 return g.apply(f.apply(this.value).apply(left.foldRight(identity, f, g))).apply(right.foldRight(identity, f, g));
}

代码示例来源:origin: fpinjava/fpinjava

public static <A, B, C, D> Option<D> map3(Option<A> a,
                     Option<B> b,
                     Option<C> c,
                     Function<A, Function<B, Function<C, D>>> f) {
 return a.flatMap(ax -> b.flatMap(bx -> c.map(cx -> f.apply(ax).apply(bx).apply(cx))));
}

代码示例来源:origin: fpinjava/fpinjava

public static <T, U> U foldRight(List<T> ts, U identity,
                  Function<T, Function<U, U>> f) {
  return ts.isEmpty()
    ? identity
    : f.apply(head(ts)).apply(foldRight(tail(ts), identity, f));
 }
}

代码示例来源:origin: fpinjava/fpinjava

public static <A, B, C> Rand<C> map2_(Rand<A> ra, Rand<B> rb, Function<A, Function<B, C>> f) {
 return rng -> {
  Tuple<A, RNG> t1 = ra.apply(rng);
  Tuple<B, RNG> t2 = rb.apply(t1._2);
  return new Tuple<>(f.apply(t1._1).apply(t2._1), t2._2);
 };
}

代码示例来源:origin: fpinjava/fpinjava

@Override
public <U> Result<U> flatMap(Function<T, Result<U>> f) {
 try {
  return f.apply(successValue());
 } catch (Exception e) {
  return failure(e.getMessage());
 }
}

代码示例来源:origin: fpinjava/fpinjava

static <A, B> Random<B> map(Random<A> s, Function<A, B> f) {
 return rng -> {
  Tuple<A, RNG> t = s.apply(rng);
  return new Tuple<>(f.apply(t._1), t._2);
 };
}

代码示例来源:origin: fpinjava/fpinjava

public Result<T> filter(Function<T, Boolean> p, String message) {
 return flatMap(x -> p.apply(x)
   ? this
   : failure(message));
}

代码示例来源:origin: fpinjava/fpinjava

public Result<T> filter(Function<T, Boolean> p) {
 return flatMap(x -> p.apply(x)
   ? this
   : failure("Condition not matched"));
}

代码示例来源:origin: fpinjava/fpinjava

public static <T> Result<T> of(Function<T, Boolean> predicate, T value) {
 try {
  return predicate.apply(value)
    ? success(value)
    : empty();
 } catch (Exception e) {
  String errMessage =
    String.format("Exception while evaluating predicate: %s", value);
  return Result.failure(new IllegalStateException(errMessage, e));
 }
}

代码示例来源:origin: fpinjava/fpinjava

public Result<T> filter(Function<T, Boolean> p, String message) {
 return flatMap(x -> p.apply(x)
   ? this
   : failure(message));
}

代码示例来源:origin: fpinjava/fpinjava

public Result<T> filter(Function<T, Boolean> p) {
 return flatMap(x -> p.apply(x)
   ? this
   : failure("Condition not matched"));
}

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