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

List.single介绍

[英]Returns a list of one element containing the given value.
[中]返回包含给定值的一个元素的列表。

代码示例

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

/**
 * Promotes this function so that it returns its result in a List. Kleisli arrow for List.
 *
 * @return This function promoted to return its result in a List.
 */
public static <A, B> F<A, List<B>> listK(final F<A, B> f) {
  return a -> List.single(f.f(a));
}

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

public List<String> toList()
{
  int i = string.lastIndexOf( '/' );
  if ( i == -1 )
  {
    return List.single( string );
  }
  List<String> list = List.single( string.substring( i + 1 ) );
  String s = string.substring( 0, i );
  do
  {
    i = s.lastIndexOf( '/' );
    if ( i == -1 )
    {
      return list.cons( s );
    }
    list = list.cons( s.substring( i + 1 ) );
    s = s.substring( 0, i );
  }
  while ( true );
}

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

public FileAttributes addTag( String tag )
{
  return new FileAttributes( user, group, mode, tags.append( single( tag ) ) );
}

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

/**
 * Returns a single element list if this projection has a value, otherwise an empty list.
 *
 * @return A single element list if this projection has a value, otherwise an empty list.
 */
public List<B> toList() {
 return e.isRight() ? single(value()) : List.nil();
}

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

/**
 * Returns a single element list if this projection has a value, otherwise an empty list.
 *
 * @return A single element list if this projection has a value, otherwise an empty list.
 */
public List<A> toList() {
 return e.isLeft() ? single(value()) : List.nil();
}

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

/**
 * Returns a nonempty list with the elements of this vector.
 *
 * @return a nonempty list with the elements of this vector.
 */
public NonEmptyList<A> toNonEmptyList() {
 return NonEmptyList.nel(_1(), List.single(_2()));
}

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

/**
 * Returns the list of final segments of this list, longest first.
 *
 * @return The list of final segments of this list, longest first.
 */
public final List<List<A>> tails() {
 return isEmpty() ? single(List.nil()) : cons(this, tail().tails());
}

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

public final Validation<List<E>, T> accumulate() {
  if (isFail()) {
    return fail(List.single(fail()));
  } else {
    return success(success());
  }
}

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

public final <B> List<List<B>> traverseList(final F<A, List<B>> f) {
 return foldRight(
   (a, acc) -> f.f(a).bind(b -> acc.map(bs -> bs.cons(b))),
   single(List.nil()));
}

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

public final <B> Validation<List<E>, B> accumulate(F<T, B> f) {
  if (isFail()) {
    return fail(List.single(fail()));
  } else {
    return success(f.f(success()));
  }
}

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

@Override
public F<S, List<S>> modifyListF(final F<A, List<A>> f) {
 return s -> getOption.f(s).<List<S>> option(
   () -> List.single(s),
   t -> f.f(t).map(b -> set.f(b).f(s))
   );
}

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

/**
 * Returns the list of initial segments of this list, shortest first.
 *
 * @return The list of initial segments of this list, shortest first.
 */
public final List<List<A>> inits() {
 List<List<A>> s = single(List.nil());
 if (isNotEmpty())
  s = s.append(tail().inits().map(List.<A>cons().f(head())));
 return s;
}

代码示例来源：origin: novarto-oss/sane-dbc

@Test public void testIt()
{
  assertThat(awaitSuccess(dbi.submit(insert("x"))), is(1));
  assertThat(awaitSuccess(dbi.submit(selectAll())), is(single("x")));
  SQLException ex = new SQLException("failed i have");
  assertThat(
      awaitFailure(dbi.transact(new DB<Unit>()
      {
        @Override public Unit run(Connection c) throws SQLException
        {
          insert("a").run(c);
          insert("b").run(c);
          throw ex;
        }
      })),
      is(ex)
  );
  assertThat(awaitSuccess(dbi.submit(selectAll())), is(single("x")));
  SQLException noConn = new SQLException("no connection");
  AsyncDbInterpreter noConnection = new AsyncDbInterpreter(() -> {
    throw noConn;
  }, executor);
  assertThat(awaitFailure(noConnection.transact(insert("alabala"))), is(noConn));
  assertThat(awaitSuccess(dbi.submit(selectAll())), is(single("x")));
  assertThat(
      awaitSuccess(dbi.transact(insert("y").bind(ignore -> insert("z")).map(ignore2 -> Unit.unit()))),
      is(Unit.unit())
  );
  assertThat(awaitSuccess(dbi.submit(selectAll())), is(arrayList("x", "y", "z")));
}

代码示例来源：origin: novarto-oss/sane-dbc

@Test public void testIt()
{
  assertThat(DB.submit(insert("x")).f(), is(success(1)));
  assertThat(DB.submit(selectAll()).f(), is(success(single("x"))));
  SQLException ex = new SQLException("failed i have");
  assertThat(
      DB.transact(new DB<Unit>()
      {
        @Override public Unit run(Connection c) throws SQLException
        {
          insert("a").run(c);
          insert("b").run(c);
          throw ex;
        }
      }).f(),
      is(fail(ex))
  );
  assertThat(DB.submit(selectAll()).f(), is(success(single("x"))));
  SQLException noConn = new SQLException("no connection");
  ValidationDbInterpreter noConnection = new ValidationDbInterpreter(() -> {
    throw noConn;
  });
  assertThat(noConnection.transact(insert("alabala")).f(), is(fail(noConn)));
  assertThat(DB.submit(selectAll()).f(), is(success(single("x"))));
  assertThat(
      DB.transact(insert("y").bind(ignore -> insert("z")).map(ignore2 -> Unit.unit())).f(),
      is(success(Unit.unit()))
  );
  assertThat(DB.submit(selectAll()).f(), is(success(arrayList("x", "y", "z"))));
}

代码示例来源：origin: novarto-oss/sane-dbc

.orSome(() -> soFar.set(employee.departmentId, List.single(employee)));
},

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

public List<String> toList()
{
  F<List<String>, String> folder = List.<String, String>foldLeft().f( joiner.f( " " ) ).f( "" );
  F<List<String>, String> stringF = FunctionF.compose( curry( concat, "CLASSES=" ), trim, folder );
  List<Option<String>> list = List.<Option<String>>single( some( "ARCH=" + arch ) ).
    cons( some( "CATEGORY=" + category ) ).
    cons( some( "NAME=" + name ) ).
    cons( some( "PKG=" + pkg ) ).
    cons( some( "VERSION=" + version ) ).
    cons( pstamp.map( curry( concat, "PSTAMP=" ) ) ).
    cons( desc.map( curry( concat, "DESC=" ) ) ).
    cons( email.map( curry( concat, "EMAIL=" ) ) ).
    cons( iif( List.<String>isNotEmpty_(), classes ).map( stringF ) );
  return Option.somes( list ).reverse();
}

代码示例来源：origin: com.stratio.mojo.unix/unix-sysv-pkg

public List<String> toList()
{
  F<List<String>, String> folder = List.<String, String>foldLeft().f( joiner.f( " " ) ).f( "" );
  F<List<String>, String> stringF = FunctionF.compose( curry( concat, "CLASSES=" ), trim, folder );
  List<Option<String>> list = List.<Option<String>>single( some( "ARCH=" + arch ) ).
    cons( some( "CATEGORY=" + category ) ).
    cons( some( "NAME=" + name ) ).
    cons( some( "PKG=" + pkg ) ).
    cons( some( "VERSION=" + version ) ).
    cons( pstamp.map( curry( concat, "PSTAMP=" ) ) ).
    cons( desc.map( curry( concat, "DESC=" ) ) ).
    cons( email.map( curry( concat, "EMAIL=" ) ) ).
    cons( size.map( curry( concat, "SIZE=" ) ) ).
    cons( iif( List.<String>isNotEmpty_(), classes ).map( stringF ) );
  return Option.somes( list ).reverse();
}