PluginDefaultGroovyMethods (groovy 3.0.19 API)

org.codehaus.groovy.vmplugin.v8.PluginDefaultGroovyMethods

```
public class PluginDefaultGroovyMethods
extends DefaultGroovyMethodsSupport
```
Defines new Groovy methods which appear on standard Java 8 classes within the Groovy environment.
Since:
2.5.0

Methods Summary

Methods
Type Params	Return Type	Name and description
	`public static boolean`	`asBoolean(Optional<?> optional)` Coerce an `Optional` instance to a `boolean` value.
`<S, T>`	`public static Optional<T>`	`collect(Optional<S> self, Closure<T> transform)` If the optional contains a value, returns an optional containing the transformed value obtained using the `transform` closure or otherwise an empty optional.
`<S, T>`	`public static Future<T>`	`collect(Future<S> self, Closure<T> transform)` Returns a Future asynchronously returning a transformed result.
	`public static DoubleStream`	`doubleStream(double[] self)` Returns a sequential DoubleStream with the specified array as its source.
`<T>`	`public static Optional<T>`	`filter(Optional<?> self, Class<T> type)` Tests given value against specified type and changes generics of result.
	`public static OptionalInt`	`filter(OptionalInt self, IntPredicate test)` If a value is present in the `OptionalInt`, tests the value using the given predicate and returns the optional if the test returns true or else empty.
	`public static OptionalLong`	`filter(OptionalLong self, LongPredicate test)` If a value is present in the `OptionalLong`, tests the value using the given predicate and returns the optional if the test returns true or else empty.
	`public static OptionalDouble`	`filter(OptionalDouble self, DoublePredicate test)` If a value is present in the `OptionalDouble`, tests the value using the given predicate and returns the optional if the test returns true or empty otherwise.
	`public void`	`forEachRemaining(Consumer<? super T> action)`
	`public static int`	`get(OptionalInt self)` If a value is present in the `OptionalInt`, returns the value, otherwise throws `NoSuchElementException`.
	`public static long`	`get(OptionalLong self)` If a value is present in the `OptionalLong`, returns the value, otherwise throws `NoSuchElementException`.
	`public static double`	`get(OptionalDouble self)` If a value is present in the `OptionalDouble`, returns the value, otherwise throws `NoSuchElementException`.
	`public static IntStream`	`intStream(int[] self)` Returns a sequential IntStream with the specified array as its source.
	`public static StringBuilder`	`leftShift(StringBuilder self, Object value)` Overloads the left shift operator to provide an easy way to append multiple objects as string representations to a StringBuilder.
	`public static LongStream`	`longStream(long[] self)` Returns a sequential LongStream with the specified array as its source.
`<T>`	`public static OptionalDouble`	`mapToDouble(Optional<T> self, ToDoubleFunction<? super T> mapper)` If a value is present in the `OptionalDouble`, returns an `OptionalDouble` consisting of the result of applying the given function to the value or else empty.
`<T>`	`public static OptionalInt`	`mapToInt(Optional<T> self, ToIntFunction<? super T> mapper)` If a value is present in the `OptionalInt`, returns an `OptionalInt` consisting of the result of applying the given function to the value or else empty.
`<T>`	`public static OptionalLong`	`mapToLong(Optional<T> self, ToLongFunction<? super T> mapper)` If a value is present in the `OptionalLong`, returns an `OptionalLong` consisting of the result of applying the given function to the value or else empty.
`<T>`	`public static Optional<T>`	`mapToObj(OptionalInt self, IntFunction<? extends T> mapper)` If a value is present in the `OptionalInt`, returns an `Optional` consisting of the result of applying the given function to the value or else empty.
`<T>`	`public static Optional<T>`	`mapToObj(OptionalLong self, LongFunction<? extends T> mapper)` If a value is present in the `OptionalLong`, returns an `Optional` consisting of the result of applying the given function to the value or else empty.
`<T>`	`public static Optional<T>`	`mapToObj(OptionalDouble self, DoubleFunction<? extends T> mapper)` If a value is present in the `OptionalDouble`, returns an `Optional` consisting of the result of applying the given function to the value or else empty.
	`public static Object`	`next(Enum self)` Overloads the `++` operator for enums.
`<T>`	`public static Optional<T>`	`orOptional(Optional<T> self, Supplier<? extends Optional<? extends T>> supplier)` Provide similar functionality to JDK9 `or` on JDK8.
	`public static String`	`plus(StringBuilder self, String value)` Appends a String to this StringBuilder.
	`public static Object`	`previous(Enum self)` Overloads the `--` operator for enums.
	`public static void`	`putAt(StringBuilder self, IntRange range, Object value)` Supports the range subscript operator for StringBuilder.
	`public static void`	`putAt(StringBuilder self, EmptyRange range, Object value)` Supports the range subscript operator for StringBuilder.
	`public static int`	`size(StringBuilder self)` Provides the standard Groovy `size()` method for `StringBuilder`.
`<T>`	`public static Stream<T>`	`stream(NullObject self)` Returns an empty sequential Stream.
`<T>`	`public static Stream<T>`	`stream(T self)` Returns a sequential Stream containing a single element.
`<T>`	`public static Stream<T>`	`stream(T[] self)` Returns a sequential Stream with the specified array as its source.
	`public static Stream<Integer>`	`stream(int[] self)` Returns a sequential Stream with the specified array as its source.
	`public static Stream<Long>`	`stream(long[] self)` Returns a sequential Stream with the specified array as its source.
	`public static Stream<Double>`	`stream(double[] self)` Returns a sequential Stream with the specified array as its source.
	`public static Stream<Character>`	`stream(char[] self)` Returns a sequential Stream with the specified array as its source.
	`public static Stream<Byte>`	`stream(byte[] self)` Returns a sequential Stream with the specified array as its source.
	`public static Stream<Short>`	`stream(short[] self)` Returns a sequential Stream with the specified array as its source.
	`public static Stream<Boolean>`	`stream(boolean[] self)` Returns a sequential Stream with the specified array as its source.
	`public static Stream<Float>`	`stream(float[] self)` Returns a sequential Stream with the specified array as its source.
`<T>`	`public static Stream<T>`	`stream(Enumeration<T> self)` Returns a sequential Stream with the specified element(s) as its source.
`<T>`	`public static Stream<T>`	`stream(Iterable<T> self)` Returns a sequential Stream with the specified element(s) as its source.
`<T>`	`public static Stream<T>`	`stream(Iterator<T> self)` Returns a sequential Stream with the specified element(s) as its source.
`<T>`	`public static Stream<T>`	`stream(Spliterator<T> self)` Returns a sequential Stream with the specified element(s) as its source.
`<T>`	`public static Stream<T>`	`stream(Optional<T> self)` If a value is present in the Optional, returns a Stream with the value as its source or else an empty stream.
	`public static IntStream`	`stream(OptionalInt self)` If a value is present in the OptionalInt, returns an IntStream with the value as its source or else an empty stream.
	`public static LongStream`	`stream(OptionalLong self)` If a value is present in the OptionalLong, returns a LongStream with the value as its source or else an empty stream.
	`public static DoubleStream`	`stream(OptionalDouble self)` If a value is present in the OptionalDouble, returns a DoubleStream with the value as its source or else an empty stream.
`<T>`	`public static T[]`	`toArray(Stream<? extends T> self, Class<T> type)` Returns an array containing the elements of the stream.
`<T>`	`public static List<T>`	`toList(Stream<T> self)` Accumulates the elements of stream into a new List.
`<T>`	`public static List<T>`	`toList(BaseStream<T, ? extends BaseStream> self)` Accumulates the elements of stream into a new List.
`<T>`	`public static Set<T>`	`toSet(Stream<T> self)` Accumulates the elements of stream into a new Set.
`<T>`	`public static Set<T>`	`toSet(BaseStream<T, ? extends BaseStream> self)` Accumulates the elements of stream into a new Set.
	`public boolean`	`tryAdvance(Consumer<? super T> action)`

Inherited Methods Summary

Inherited Methods
Methods inherited from class	Name
`class DefaultGroovyMethodsSupport`	`cloneSimilarCollection, cloneSimilarMap, closeQuietly, closeWithWarning, createSimilarArray, createSimilarCollection, createSimilarCollection, createSimilarCollection, createSimilarList, createSimilarMap, createSimilarOrDefaultCollection, createSimilarQueue, createSimilarSet, normaliseIndex, sameType, subListBorders, subListBorders, writeUTF16BomIfRequired, writeUTF16BomIfRequired, writeUTF16BomIfRequired, writeUTF16BomIfRequired`

- Method Detail
  - public static boolean asBoolean(Optional<?> optional)
    
    Coerce an Optional instance to a boolean value.
```
 assert !Optional.empty().asBoolean()
 assert Optional.of(1234).asBoolean()
 
```
    Parameters:
    optional - the Optional
    Returns:
    true if a value is present, otherwise false
    Since:
    2.5.0
  - <S, T> public static Optional<T> collect(Optional<S> self, @ClosureParams(FirstParam.FirstGenericType.class) Closure<T> transform)
    
    If the optional contains a value, returns an optional containing the transformed value obtained using the transform closure or otherwise an empty optional.
```
 assert Optional.of("foobar").collect{ it.size() }.get() == 6
 assert !Optional.empty().collect{ it.size() }.isPresent()
 
```
    Parameters:
    self - an Optional
    transform - the closure used to transform the optional value if present
    Returns:
    an Optional containing the transformed value or empty if the optional is empty or the transform returns null
    Since:
    3.0.0
  - <S, T> public static Future<T> collect(Future<S> self, @ClosureParams(FirstParam.FirstGenericType.class) Closure<T> transform)
    
    Returns a Future asynchronously returning a transformed result.
```
 import java.util.concurrent.*
 def executor = Executors.newSingleThreadExecutor()
 Future foobar = executor.submit{ "foobar" }
 Future foobarSize = foobar.collect{ it.size() }
 assert foobarSize.get() == 6
 executor.shutdown()
 
```
    Parameters:
    self - a Future
    transform - the closure used to transform the Future value
    Returns:
    a Future allowing the transformed value to be obtained asynchronously
    Since:
    3.0.0
  - public static DoubleStream doubleStream(double[] self)
    
    Returns a sequential DoubleStream with the specified array as its source.
    Parameters:
    self - The array, assumed to be unmodified during use
    Returns:
    a Stream for the array
    Since:
    3.0.8
  - <T> public static Optional<T> filter(Optional<?> self, Class<T> type)
    
    Tests given value against specified type and changes generics of result. This is equivalent to: self.filter(it -> it instanceof Type).map(it -> (Type) it)
```
 assert !Optional.empty().filter(Number).isPresent()
 assert !Optional.of('x').filter(Number).isPresent()
 assert Optional.of(1234).filter(Number).isPresent()
 assert Optional.of(1234).filter(Number).get().equals(1234)
 
```
    Since:
    3.0.0
  - public static OptionalInt filter(OptionalInt self, IntPredicate test)
    
    If a value is present in the OptionalInt, tests the value using the given predicate and returns the optional if the test returns true or else empty.
```
 assert !OptionalInt.empty().filter(i -> true).isPresent()
 assert  OptionalInt.of(1234).filter(i -> true).isPresent()
 assert !OptionalInt.of(1234).filter(i -> false).isPresent()
 assert  OptionalInt.of(1234).filter(i -> true).getAsInt() == 1234
 
```
    Since:
    3.0.0
  - public static OptionalLong filter(OptionalLong self, LongPredicate test)
    
    If a value is present in the OptionalLong, tests the value using the given predicate and returns the optional if the test returns true or else empty.
```
 assert !OptionalLong.empty().filter(n -> true).isPresent()
 assert  OptionalLong.of(123L).filter(n -> true).isPresent()
 assert !OptionalLong.of(123L).filter(n -> false).isPresent()
 assert  OptionalLong.of(123L).filter(n -> true).getAsLong() == 123L
 
```
    Since:
    3.0.0
  - public static OptionalDouble filter(OptionalDouble self, DoublePredicate test)
    
    If a value is present in the OptionalDouble, tests the value using the given predicate and returns the optional if the test returns true or empty otherwise.
```
 assert !OptionalDouble.empty().filter(n -> true).isPresent()
 assert  OptionalDouble.of(Math.PI).filter(n -> true).isPresent()
 assert !OptionalDouble.of(Math.PI).filter(n -> false).isPresent()
 assert  OptionalDouble.of(Math.PI).filter(n -> true).getAsDouble() == Math.PI
 
```
    Since:
    3.0.0
  - @Override public void forEachRemaining(Consumer<? super T> action)
  - public static int get(OptionalInt self)
    
    If a value is present in the OptionalInt, returns the value, otherwise throws NoSuchElementException.
```
 assert OptionalInt.of(1234).get() == 1234
 
```
    Since:
    3.0.0
  - public static long get(OptionalLong self)
    
    If a value is present in the OptionalLong, returns the value, otherwise throws NoSuchElementException.
```
 assert OptionalLong.of(1234L).get() == 1234L
 
```
    Since:
    3.0.0
  - public static double get(OptionalDouble self)
    
    If a value is present in the OptionalDouble, returns the value, otherwise throws NoSuchElementException.
```
 assert OptionalDouble.of(Math.PI).get() == Math.PI
 
```
    Since:
    3.0.0
  - public static IntStream intStream(int[] self)
    
    Returns a sequential IntStream with the specified array as its source.
    Parameters:
    self - The array, assumed to be unmodified during use
    Returns:
    a Stream for the array
    Since:
    3.0.8
  - public static StringBuilder leftShift(StringBuilder self, Object value)
    
    Overloads the left shift operator to provide an easy way to append multiple objects as string representations to a StringBuilder.
    Parameters:
    self - a StringBuilder
    value - a value to append
    Returns:
    the StringBuilder on which this operation was invoked
    Since:
    1.5.2
  - public static LongStream longStream(long[] self)
    
    Returns a sequential LongStream with the specified array as its source.
    Parameters:
    self - The array, assumed to be unmodified during use
    Returns:
    a Stream for the array
    Since:
    3.0.8
  - <T> public static OptionalDouble mapToDouble(Optional<T> self, ToDoubleFunction<? super T> mapper)
    
    If a value is present in the OptionalDouble, returns an OptionalDouble consisting of the result of applying the given function to the value or else empty.
```
 assert !Optional.empty().mapToDouble(x -> Math.PI).isPresent()
 assert  Optional.of('x').mapToDouble(x -> Math.PI).getAsDouble() == Math.PI
 
```
    Since:
    3.0.0
  - <T> public static OptionalInt mapToInt(Optional<T> self, ToIntFunction<? super T> mapper)
    
    If a value is present in the OptionalInt, returns an OptionalInt consisting of the result of applying the given function to the value or else empty.
```
 assert !Optional.empty().mapToInt(x -> 42).isPresent()
 assert  Optional.of('x').mapToInt(x -> 42).getAsInt() == 42
 
```
    Since:
    3.0.0
  - <T> public static OptionalLong mapToLong(Optional<T> self, ToLongFunction<? super T> mapper)
    
    If a value is present in the OptionalLong, returns an OptionalLong consisting of the result of applying the given function to the value or else empty.
```
 assert !Optional.empty().mapToLong(x -> 42L).isPresent()
 assert  Optional.of('x').mapToLong(x -> 42L).getAsLong() == 42L
 
```
    Since:
    3.0.0
  - <T> public static Optional<T> mapToObj(OptionalInt self, IntFunction<? extends T> mapper)
    
    If a value is present in the OptionalInt, returns an Optional consisting of the result of applying the given function to the value or else empty.
```
 assert !OptionalInt.empty().mapToObj(x -> new Object()).isPresent()
 assert  OptionalInt.of(1234).mapToObj(x -> new Object()).isPresent()
 assert !OptionalInt.of(1234).mapToObj(x -> null).isPresent()
 assert  OptionalInt.of(1234).mapToObj(Integer::toString).get() == '1234'
 
```
    Since:
    3.0.0
  - <T> public static Optional<T> mapToObj(OptionalLong self, LongFunction<? extends T> mapper)
    
    If a value is present in the OptionalLong, returns an Optional consisting of the result of applying the given function to the value or else empty.
```
 assert !OptionalLong.empty().mapToObj(x -> new Object()).isPresent()
 assert  OptionalLong.of(123L).mapToObj(x -> new Object()).isPresent()
 assert !OptionalLong.of(123L).mapToObj(x -> null).isPresent()
 assert  OptionalLong.of(1234L).mapToObj(Long::toString).get() == '1234'
 
```
    Since:
    3.0.0
  - <T> public static Optional<T> mapToObj(OptionalDouble self, DoubleFunction<? extends T> mapper)
    
    If a value is present in the OptionalDouble, returns an Optional consisting of the result of applying the given function to the value or else empty.
```
 assert !OptionalDouble.empty().mapToObj(x -> new Object()).isPresent()
 assert  OptionalDouble.of(Math.PI).mapToObj(x -> new Object()).isPresent()
 assert !OptionalDouble.of(Math.PI).mapToObj(x -> null).isPresent()
 assert  OptionalDouble.of(Math.PI).mapToObj(Double::toString).get().startsWith('3.14')
 
```
    Since:
    3.0.0
  - public static Object next(Enum self)
    
    Overloads the ++ operator for enums. It will invoke Groovy's default next behaviour for enums that do not have their own next method.
    Parameters:
    self - an Enum
    Returns:
    the next defined enum from the enum class
    Since:
    1.5.2
  - <T> public static Optional<T> orOptional(Optional<T> self, Supplier<? extends Optional<? extends T>> supplier)
    
    Provide similar functionality to JDK9 or on JDK8.
    Since:
    3.0.6
  - public static String plus(StringBuilder self, String value)
    
    Appends a String to this StringBuilder.
    Parameters:
    self - a StringBuilder
    value - a String
    Returns:
    a String
    Since:
    1.5.2
  - public static Object previous(Enum self)
    
    Overloads the -- operator for enums. It will invoke Groovy's default previous behaviour for enums that do not have their own previous method.
    Parameters:
    self - an Enum
    Returns:
    the previous defined enum from the enum class
    Since:
    1.5.2
  - public static void putAt(StringBuilder self, IntRange range, Object value)
    
    Supports the range subscript operator for StringBuilder. Index values are treated as characters within the builder.
    Parameters:
    self - a StringBuilder
    range - a Range
    value - the object that's toString() will be inserted
    Since:
    1.5.2
  - public static void putAt(StringBuilder self, EmptyRange range, Object value)
    
    Supports the range subscript operator for StringBuilder.
    Parameters:
    self - a StringBuilder
    range - a Range
    value - the object that's toString() will be inserted
    Since:
    1.5.2
  - @Deprecated public static int size(StringBuilder self)
    
    Provides the standard Groovy size() method for StringBuilder.
    Parameters:
    self - a StringBuilder
    Returns:
    the length of the StringBuilder
    Since:
    1.5.2
    See Also:
    StringGroovyMethods.size
  - <T> public static Stream<T> stream(NullObject self)
    
    Returns an empty sequential Stream.
```
 def item = null
 assert item.stream().toList() == []
 assert !item.stream().findFirst().isPresent()
 
```
    Since:
    3.0.0
  - <T> public static Stream<T> stream(T self)
    
    Returns a sequential Stream containing a single element.
```
 def item = 'string'
 assert item.stream().toList() == ['string']
 assert item.stream().findFirst().isPresent()
 
```
    Since:
    3.0.0
  - <T> public static Stream<T> stream(T[] self)
    
    Returns a sequential Stream with the specified array as its source.
    Type Parameters:
    T - The type of the array elements
    Parameters:
    self - The array, assumed to be unmodified during use
    Returns:
    a Stream for the array
    Since:
    2.5.0
  - public static Stream<Integer> stream(int[] self)
    
    Returns a sequential Stream with the specified array as its source.
    Parameters:
    self - The array, assumed to be unmodified during use
    Returns:
    a Stream for the array
    Since:
    2.5.0
  - public static Stream<Long> stream(long[] self)
    
    Returns a sequential Stream with the specified array as its source.
    Parameters:
    self - The array, assumed to be unmodified during use
    Returns:
    a Stream for the array
    Since:
    2.5.0
  - public static Stream<Double> stream(double[] self)
    
    Returns a sequential Stream with the specified array as its source.
    Parameters:
    self - The array, assumed to be unmodified during use
    Returns:
    a Stream for the array
    Since:
    2.5.0
  - public static Stream<Character> stream(char[] self)
    
    Returns a sequential Stream with the specified array as its source.
    Parameters:
    self - The array, assumed to be unmodified during use
    Returns:
    a Stream for the array
    Since:
    2.5.0
  - public static Stream<Byte> stream(byte[] self)
    
    Returns a sequential Stream with the specified array as its source.
    Parameters:
    self - The array, assumed to be unmodified during use
    Returns:
    a Stream for the array
    Since:
    2.5.0
  - public static Stream<Short> stream(short[] self)
    
    Returns a sequential Stream with the specified array as its source.
    Parameters:
    self - The array, assumed to be unmodified during use
    Returns:
    a Stream for the array
    Since:
    2.5.0
  - public static Stream<Boolean> stream(boolean[] self)
    
    Returns a sequential Stream with the specified array as its source.
    Parameters:
    self - The array, assumed to be unmodified during use
    Returns:
    a Stream for the array
    Since:
    2.5.0
  - public static Stream<Float> stream(float[] self)
    
    Returns a sequential Stream with the specified array as its source.
    Parameters:
    self - The array, assumed to be unmodified during use
    Returns:
    a Stream for the array
    Since:
    2.5.0
  - <T> public static Stream<T> stream(Enumeration<T> self)
    
    Returns a sequential Stream with the specified element(s) as its source.
```
 def tokens = new StringTokenizer('one two')
 assert tokens.stream().toList() == ['one', 'two']
 
```
    Since:
    3.0.0
  - <T> public static Stream<T> stream(Iterable<T> self)
    
    Returns a sequential Stream with the specified element(s) as its source.
```
 class Items implements Iterable {
   Iterator iterator() {
     ['one', 'two'].iterator()
   }
 }
 def items = new Items()
 assert items.stream().toList() == ['one', 'two']
 
```
    Since:
    3.0.0
  - <T> public static Stream<T> stream(Iterator<T> self)
    
    Returns a sequential Stream with the specified element(s) as its source.
```
 [].iterator().stream().toList().isEmpty()
 ['one', 'two'].iterator().stream().toList() == ['one', 'two']
 
```
    Since:
    3.0.0
  - <T> public static Stream<T> stream(Spliterator<T> self)
    
    Returns a sequential Stream with the specified element(s) as its source.
```
 [].spliterator().stream().toList().isEmpty()
 ['one', 'two'].spliterator().stream().toList() == ['one', 'two']
 
```
    Since:
    3.0.0
  - <T> public static Stream<T> stream(Optional<T> self)
    
    If a value is present in the Optional, returns a Stream with the value as its source or else an empty stream.
    Since:
    3.0.0
  - public static IntStream stream(OptionalInt self)
    
    If a value is present in the OptionalInt, returns an IntStream with the value as its source or else an empty stream.
    Since:
    3.0.0
  - public static LongStream stream(OptionalLong self)
    
    If a value is present in the OptionalLong, returns a LongStream with the value as its source or else an empty stream.
    Since:
    3.0.0
  - public static DoubleStream stream(OptionalDouble self)
    
    If a value is present in the OptionalDouble, returns a DoubleStream with the value as its source or else an empty stream.
    Since:
    3.0.0
  - <T> public static T[] toArray(Stream<? extends T> self, Class<T> type)
    
    Returns an array containing the elements of the stream.
```
 import static groovy.test.GroovyAssert.shouldFail

 assert Arrays.equals([].stream().toArray(Object), new Object[0])
 assert Arrays.equals([].stream().toArray(String), new String[0])
 assert Arrays.equals([].stream().toArray(String[]), new String[0][])
 assert Arrays.equals(['x'].stream().toArray(Object), ['x'].toArray())
 assert Arrays.equals(['x'].stream().toArray(String), ['x'] as String[])
 assert Arrays.deepEquals([['x'] as String[]].stream().toArray(String[]), [['x'] as String[]] as String[][])
 assert Arrays.equals(['x'].stream().toArray(CharSequence), ['x'] as CharSequence[])

 shouldFail(ArrayStoreException) {
     ['x'].stream().toArray(Thread)
 }

 shouldFail(IllegalArgumentException) {
     ['x'].stream().toArray((Class) null)
 }

 // Stream#toArray(IntFunction) should still be used for closure literal:
 assert Arrays.equals(['x'].stream().toArray { n -> new String[n] }, ['x'] as String[])

 // Stream#toArray(IntFunction) should still be used for method reference:
 assert Arrays.equals(['x'].stream().toArray(String[]::new), ['x'] as String[])
 
```
    Parameters:
    self - the stream
    type - the array element type
    Since:
    3.0.4
  - <T> public static List<T> toList(Stream<T> self)
    
    Accumulates the elements of stream into a new List.
    Parameters:
    self - the stream
    Type Parameters:
    T - the type of element
    Returns:
    a new java.util.List instance
    Since:
    2.5.0
  - <T> public static List<T> toList(BaseStream<T, ? extends BaseStream> self)
    
    Accumulates the elements of stream into a new List.
    Parameters:
    self - the java.util.stream.BaseStream
    Type Parameters:
    T - the type of element
    Returns:
    a new java.util.List instance
    Since:
    2.5.0
  - <T> public static Set<T> toSet(Stream<T> self)
    
    Accumulates the elements of stream into a new Set.
    Parameters:
    self - the stream
    Type Parameters:
    T - the type of element
    Returns:
    a new java.util.Set instance
    Since:
    2.5.0
  - <T> public static Set<T> toSet(BaseStream<T, ? extends BaseStream> self)
    
    Accumulates the elements of stream into a new Set.
    Parameters:
    self - the java.util.stream.BaseStream
    Type Parameters:
    T - the type of element
    Returns:
    a new java.util.Set instance
    Since:
    2.5.0
  - @Override public boolean tryAdvance(Consumer<? super T> action)

Summary:
Method

| Detail:
Method

[Java] Class PluginDefaultGroovyMethods

Methods Summary

Inherited Methods Summary

Method Detail

public static boolean asBoolean(Optional<?> optional)

<S, T> public static Optional<T> collect(Optional<S> self, @ClosureParams(FirstParam.FirstGenericType.class) Closure<T> transform)

<S, T> public static Future<T> collect(Future<S> self, @ClosureParams(FirstParam.FirstGenericType.class) Closure<T> transform)

public static DoubleStream doubleStream(double[] self)

<T> public static Optional<T> filter(Optional<?> self, Class<T> type)

public static OptionalInt filter(OptionalInt self, IntPredicate test)

public static OptionalLong filter(OptionalLong self, LongPredicate test)

public static OptionalDouble filter(OptionalDouble self, DoublePredicate test)

@Override public void forEachRemaining(Consumer<? super T> action)

public static int get(OptionalInt self)

public static long get(OptionalLong self)

public static double get(OptionalDouble self)

public static IntStream intStream(int[] self)

public static StringBuilder leftShift(StringBuilder self, Object value)

public static LongStream longStream(long[] self)

<T> public static OptionalDouble mapToDouble(Optional<T> self, ToDoubleFunction<? super T> mapper)

<T> public static OptionalInt mapToInt(Optional<T> self, ToIntFunction<? super T> mapper)

<T> public static OptionalLong mapToLong(Optional<T> self, ToLongFunction<? super T> mapper)

<T> public static Optional<T> mapToObj(OptionalInt self, IntFunction<? extends T> mapper)

<T> public static Optional<T> mapToObj(OptionalLong self, LongFunction<? extends T> mapper)

<T> public static Optional<T> mapToObj(OptionalDouble self, DoubleFunction<? extends T> mapper)

public static Object next(Enum self)

<T> public static Optional<T> orOptional(Optional<T> self, Supplier<? extends Optional<? extends T>> supplier)

public static String plus(StringBuilder self, String value)

public static Object previous(Enum self)

public static void putAt(StringBuilder self, IntRange range, Object value)

public static void putAt(StringBuilder self, EmptyRange range, Object value)

@Deprecated public static int size(StringBuilder self)

<T> public static Stream<T> stream(NullObject self)

<T> public static Stream<T> stream(T self)

<T> public static Stream<T> stream(T[] self)

public static Stream<Integer> stream(int[] self)

public static Stream<Long> stream(long[] self)

public static Stream<Double> stream(double[] self)

public static Stream<Character> stream(char[] self)

public static Stream<Byte> stream(byte[] self)

public static Stream<Short> stream(short[] self)

public static Stream<Boolean> stream(boolean[] self)

public static Stream<Float> stream(float[] self)

<T> public static Stream<T> stream(Enumeration<T> self)

<T> public static Stream<T> stream(Iterable<T> self)

<T> public static Stream<T> stream(Iterator<T> self)

<T> public static Stream<T> stream(Spliterator<T> self)

<T> public static Stream<T> stream(Optional<T> self)

public static IntStream stream(OptionalInt self)

public static LongStream stream(OptionalLong self)

public static DoubleStream stream(OptionalDouble self)

<T> public static T[] toArray(Stream<? extends T> self, Class<T> type)

<T> public static List<T> toList(Stream<T> self)

<T> public static List<T> toList(BaseStream<T, ? extends BaseStream> self)

<T> public static Set<T> toSet(Stream<T> self)

<T> public static Set<T> toSet(BaseStream<T, ? extends BaseStream> self)

@Override public boolean tryAdvance(Consumer<? super T> action)