本文整理了Java中fj.data.Option.bind()方法的一些代码示例，展示了Option.bind()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。Option.bind()方法的具体详情如下：
包路径：fj.data.Option
类名称：Option
方法名：bind

Option.bind介绍

[英]First-class bind function.
[中]第一类绑定函数。

代码示例

代码示例来源：origin: org.functionaljava/functionaljava

/**
 * Joins the given optional value of optional value using a bind operation.
 *
 * @param o The optional value of optional value to join.
 * @return A new optional value that is the join of the given optional value.
 */
public static <A> Option<A> join(final Option<Option<A>> o) {
 final F<Option<A>, Option<A>> id = identity();
 return o.bind(id);
}

代码示例来源：origin: org.functionaljava/functionaljava

/**
 * Performs function application within an optional value (applicative functor pattern).
 *
 * @param of The optional value of functions to apply.
 * @return A new optional value after applying the given optional value of functions through this
 *         optional value.
 */
public final <B> Option<B> apply(final Option<F<A, B>> of) {
 return of.bind(f -> map(f));
}

代码示例来源：origin: org.functionaljava/functionaljava

/**
 * First-class bind function.
 *
 * @return A function that binds a given function across an option with a final join.
 */
public static <A, B> F<F<A, Option<B>>, F<Option<A>, Option<B>>> bind() {
 return curry((f, a) -> a.bind(f));
}

代码示例来源：origin: org.functionaljava/functionaljava

/**
 * Performs a bind across the optional value, but ignores the element value in the function.
 *
 * @param o The optional value to apply in the final join.
 * @return A new optional value after the final join.
 */
public final <B> Option<B> sequence(final Option<B> o) {
 final F<A, Option<B>> c = constant(o);
 return bind(c);
}

代码示例来源：origin: org.functionaljava/functionaljava

@Override
 public Option<C> getOption(final S s) {
  return PPrism.this.getOption(s).bind(other::getOption);
 }
};

代码示例来源：origin: org.functionaljava/functionaljava

public final <B,C,D,E,F$,G,H> Option<P8<A,B,C,D,E,F$,G,H>> bindProduct(final Option<B> ob, final Option<C> oc,
                                 final Option<D> od, final Option<E> oe,
                                 final Option<F$> of, final Option<G> og,
                                 final Option<H> oh) {
 return bind(ob, oc, od, oe, of, og, oh, P.p8());
}

代码示例来源：origin: org.functionaljava/functionaljava

/**
 * Promotes a function of arity-2 so that it operates over options.
 *
 * @param f A function to promote.
 * @return The given function promoted to operate on options.
 */
public static <A, B, C> F<Option<A>, F<Option<B>, Option<C>>> liftM2(final F<A, F<B, C>> f) {
 return curry((a, b) -> a.bind(b, f));
}

代码示例来源：origin: org.functionaljava/functionaljava

public final <B, C, D> Option<P4<A,B,C,D>> bindProduct(final Option<B> ob, final Option<C> oc, final Option<D> od) {
 return bind(ob, oc, od, P.p4());
}

代码示例来源：origin: org.functionaljava/functionaljava

/**
 * Binds the given function across the element of this optional value and the given optional value
 * with a final join.
 *
 * @param ob A given optional value to bind the given function with.
 * @param oc A given optional value to bind the given function with.
 * @param f  The function to apply to the element of this optional value and the given optional
 *           value.
 * @return A new optional value after performing the map, then final join.
 */
public final <B, C, D> Option<D> bind(final Option<B> ob, final Option<C> oc, final F<A, F<B, F<C, D>>> f) {
 return oc.apply(bind(ob, f));
}

代码示例来源：origin: org.functionaljava/functionaljava

public final <B,C,D,E> Option<P5<A,B,C,D,E>> bindProduct(final Option<B> ob, final Option<C> oc, final Option<D> od,
                          final Option<E> oe) {
 return bind(ob, oc, od, oe, P.p5());
}

代码示例来源：origin: org.functionaljava/functionaljava

public final <B,C,D,E,F$> Option<P6<A,B,C,D,E,F$>> bindProduct(final Option<B> ob, final Option<C> oc, final Option<D> od,
                             final Option<E> oe, final Option<F$> of) {
 return bind(ob, oc, od, oe, of, P.p6());
}

代码示例来源：origin: org.functionaljava/functionaljava

/**
 * Lift the function of arity-2 through options.
 *
 * @param f A function to lift.
 * @return An optional result.
 */
public final <B, C> Option<C> liftM2(final Option<B> ob, final F2<A, B, C> f) {
  return bind(a -> ob.map(b -> f.f(a, b)));
}

代码示例来源：origin: no.arktekk.unix/unix-sysv-pkg

public void addSymlink( UnixFsObject.Symlink symlink )
{
  fileSystem = fileSystem.addSymlink( new SymlinkEntry( symlink.attributes.bind( findClassTag ), symlink ) );
}

代码示例来源：origin: org.functionaljava/functionaljava

/**
 * Returns an optional non-empty string, or no value if the given string is empty.
 *
 * @param s A string to turn into an optional non-empty string.
 * @return an optional non-empty string, or no value if the given string is empty.
 */
public static Option<String> fromString(final String s) {
 return fromNull(s).bind(s1 -> {
  final Option<String> none = none();
  return s.length() == 0 ? none : some(s);
 });
}

代码示例来源：origin: org.functionaljava/functionaljava

/**
 * Returns a potential value that the given key maps to.
 *
 * @param k The key to look up in the tree map.
 * @return A potential value for the given key.
 */
public Option<V> get(final K k) {
 return tree.lookup(p(k, Option.none())).bind(P2::_2);
}

代码示例来源：origin: org.functionaljava/functionaljava

public ListIterator<A> listIterator(final int index) {
 return toListIterator(toZipper().bind(Zipper.<A>move().f(index)));
}

代码示例来源：origin: org.codehaus.mojo.unix/unix-pkg

public void addFile( FileObject fromFile, UnixFsObject.RegularFile file )
{
  fileSystem = fileSystem.addFile( new FileEntry( file.attributes.bind( findClassTag ), some( false ), file, some( asFile( fromFile ) ) ) );
}

代码示例来源：origin: org.functionaljava/functionaljava

/**
 * Traversable instance of Stream for Option.
 *
 * @return traversed value
 */
public final <B> Option<Stream<B>> traverseOption(F<A, Option<B>> f) {
 return this.foldRight1((a, acc) -> acc.bind(bs -> f.f(a).map(bs::cons)), some(Stream.nil()));
}

代码示例来源：origin: org.functionaljava/functionaljava

/**
 * Traverses through the List with the given function
 *
 * @param f The function that produces Option value
 * @return  none if applying f returns none to any element of the list or f mapped list in some .
 */
public final <B> Option<List<B>> traverseOption(final F<A, Option<B>> f) {
  return foldRight(
      (a, obs) -> f.f(a).bind(o -> obs.map(os -> os.cons(o))),
      some(List.nil())
  );
}

代码示例来源：origin: org.functionaljava/functionaljava

/**
 * Sequence through the option monad.
 *
 * @param a The list of option to sequence.
 * @return The option of list after sequencing.
 */
public static <A> Option<List<A>> sequence(final List<Option<A>> a) {
 return a.isEmpty() ?
     some(List.nil()) :
     a.head().bind(aa -> sequence(a.tail()).map(cons_(aa)));
}