Class Optional<T>

Namespace

Java.Util

Assembly

MASES.JNet.dll

https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/Optional.html

public class Optional<T> : JVMBridgeBase<Optional<T>>, IDynamicMetaObjectProvider, IJVMBridgeCore, IDisposable, IJVMBridgeBaseStatic, IJVMBridgeBase, IJVMBridgeDefinition

Type Parameters

T

Inheritance

object

DynamicObject

JVMBridgeBase

JVMBridgeBase<Optional<T>>

Optional<T>

Implements

IDynamicMetaObjectProvider

IJVMBridgeCore

IDisposable

IJVMBridgeBaseStatic

IJVMBridgeBase

IJVMBridgeDefinition

Inherited Members

JVMBridgeBase<Optional<T>>.SExecute(IJavaType, string, params object[])

JVMBridgeBase<Optional<T>>.SExecuteWithSignature(IJavaType, string, string, params object[])

JVMBridgeBase<Optional<T>>.SExecute(string, params object[])

JVMBridgeBase<Optional<T>>.SExecuteWithSignature(string, string, params object[])

JVMBridgeBase<Optional<T>>.SExecute<TReturn>(IJavaType, string, params object[])

JVMBridgeBase<Optional<T>>.SExecuteWithSignature<TReturn>(IJavaType, string, string, params object[])

JVMBridgeBase<Optional<T>>.SExecute<TReturn>(string, params object[])

JVMBridgeBase<Optional<T>>.SExecuteWithSignature<TReturn>(string, string, params object[])

JVMBridgeBase<Optional<T>>.SExecute(Type, IJavaType, string, params object[])

JVMBridgeBase<Optional<T>>.SExecuteWithSignature(Type, IJavaType, string, string, params object[])

JVMBridgeBase<Optional<T>>.SExecute(Type, string, params object[])

JVMBridgeBase<Optional<T>>.SExecuteWithSignature(Type, string, string, params object[])

JVMBridgeBase<Optional<T>>.SExecute<TNewClass, TReturn>(IJavaType, string, params object[])

JVMBridgeBase<Optional<T>>.SExecuteWithSignature<TNewClass, TReturn>(IJavaType, string, string, params object[])

JVMBridgeBase<Optional<T>>.SExecute<TNewClass, TReturn>(string, params object[])

JVMBridgeBase<Optional<T>>.SExecuteWithSignature<TNewClass, TReturn>(string, string, params object[])

JVMBridgeBase<Optional<T>>.SExecute<TReturn>(Type, IJavaType, string, params object[])

JVMBridgeBase<Optional<T>>.SExecuteWithSignature<TReturn>(Type, IJavaType, string, string, params object[])

JVMBridgeBase<Optional<T>>.SExecute<TReturn>(Type, string, params object[])

JVMBridgeBase<Optional<T>>.SExecuteWithSignature<TReturn>(Type, string, string, params object[])

JVMBridgeBase<Optional<T>>.SExecute<TNewClass, TReturn, TConverter>(IJavaType, string, params object[])

JVMBridgeBase<Optional<T>>.SExecuteWithSignature<TNewClass, TReturn, TConverter>(IJavaType, string, string, params object[])

JVMBridgeBase<Optional<T>>.SExecute<TNewClass, TReturn, TConverter>(string, params object[])

JVMBridgeBase<Optional<T>>.SExecuteWithSignature<TNewClass, TReturn, TConverter>(string, string, params object[])

JVMBridgeBase<Optional<T>>.SExecute<TReturn, TConverter>(Type, IJavaType, string, params object[])

JVMBridgeBase<Optional<T>>.SExecuteWithSignature<TReturn, TConverter>(Type, IJavaType, string, string, params object[])

JVMBridgeBase<Optional<T>>.SExecute<TReturn, TConverter>(Type, string, params object[])

JVMBridgeBase<Optional<T>>.SExecuteWithSignature<TReturn, TConverter>(Type, string, string, params object[])

JVMBridgeBase<Optional<T>>.SExecuteArray<T>(IJavaType, string, params object[])

JVMBridgeBase<Optional<T>>.SExecuteWithSignatureArray<T>(IJavaType, string, string, params object[])

JVMBridgeBase<Optional<T>>.SExecuteArray<T>(string, params object[])

JVMBridgeBase<Optional<T>>.SExecuteWithSignatureArray<T>(string, string, params object[])

JVMBridgeBase<Optional<T>>.SGetField(IJavaType, string)

JVMBridgeBase<Optional<T>>.SGetField(string)

JVMBridgeBase<Optional<T>>.SGetField<TReturn>(IJavaType, string)

JVMBridgeBase<Optional<T>>.SGetField<TReturn>(string)

JVMBridgeBase<Optional<T>>.SGetFieldArray<TReturn>(IJavaType, string)

JVMBridgeBase<Optional<T>>.SGetFieldArray<TReturn>(string)

JVMBridgeBase<Optional<T>>.SSetField(IJavaType, string, object)

JVMBridgeBase<Optional<T>>.SSetField(string, object)

JVMBridgeBase<Optional<T>>.SSetField<TValue>(IJavaType, string, TValue)

JVMBridgeBase<Optional<T>>.SSetField<TValue>(string, TValue)

JVMBridgeBase<Optional<T>>.IsAssignableFrom(string)

JVMBridgeBase<Optional<T>>.IsAssignableFrom(IJavaType)

JVMBridgeBase<Optional<T>>.IsAssignableFrom<T>()

JVMBridgeBase<Optional<T>>.New(params object[])

JVMBridgeBase<Optional<T>>.NewWithSignature(string, params object[])

JVMBridgeBase<Optional<T>>.Execute<T>(params T[])

JVMBridgeBase<Optional<T>>.DynBridgeClazz

JVMBridgeBase<Optional<T>>.BridgeClazz

JVMBridgeBase.ClazzOf<TClass>(bool)

JVMBridgeBase.ClazzOf(string, bool)

JVMBridgeBase.RuntimeClassNameOf<T>()

JVMBridgeBase.ClassNameOf<T>()

JVMBridgeBase.ClassOf<T>()

JVMBridgeBase.WrapsDirect<TNewClass>(IJavaObject)

JVMBridgeBase.Wraps<TNewClass>(IJavaObject)

JVMBridgeBase.Wraps(Type, IJavaObject, string)

JVMBridgeBase.Wraps<TNewClass, TReturn>(IJavaObject)

JVMBridgeBase.Wraps<TReturn>(Type, IJavaObject, string)

JVMBridgeBase.Wraps<TNewClass, TReturn, TConverter>(IJavaObject)

JVMBridgeBase.Wraps<TReturn, TConverter>(Type, IJavaObject)

JVMBridgeBase.MonitorEnter()

JVMBridgeBase.MonitorExit()

JVMBridgeBase.IsInstanceOf(string)

JVMBridgeBase.IsInstanceOf(IJavaType)

JVMBridgeBase.IsInstanceOf<T>()

JVMBridgeBase.RuntimeIsInstanceOf<T>()

JVMBridgeBase.CastTo<TNewClass>()

JVMBridgeBase.CastDirect<TNewClass>()

JVMBridgeBase.Dispose()

JVMBridgeBase.ToString()

JVMBridgeBase.Equals(object)

JVMBridgeBase.GetHashCode()

JVMBridgeBase.Notify()

JVMBridgeBase.NotifyAll()

JVMBridgeBase.Wait()

JVMBridgeBase.Wait(long)

JVMBridgeBase.Wait(long, int)

JVMBridgeBase.IExecute(string, params object[])

JVMBridgeBase.IExecuteWithSignature(string, string, params object[])

JVMBridgeBase.IExecute<TReturn>(string, params object[])

JVMBridgeBase.IExecuteWithSignature<TReturn>(string, string, params object[])

JVMBridgeBase.IExecute<TNewClass, TReturn>(string, params object[])

JVMBridgeBase.IExecuteWithSignature<TNewClass, TReturn>(string, string, params object[])

JVMBridgeBase.IExecute<TNewClass, TReturn, TConverter>(string, params object[])

JVMBridgeBase.IExecuteWithSignature<TNewClass, TReturn, TConverter>(string, string, params object[])

JVMBridgeBase.IExecuteArray<T>(string, params object[])

JVMBridgeBase.IExecuteWithSignatureArray<T>(string, string, params object[])

JVMBridgeBase.IGetField(string)

JVMBridgeBase.IGetField<TReturn>(string)

JVMBridgeBase.IGetFieldArray<TReturn>(string)

JVMBridgeBase.ISetField(string, object)

JVMBridgeBase.ISetField<TValue>(string, TValue)

JVMBridgeBase.DynBridgeInstance

JVMBridgeBase.BridgeInstance

JVMBridgeBase.IsBridgeListener

DynamicObject.TryGetMember(GetMemberBinder, out object)

DynamicObject.TrySetMember(SetMemberBinder, object)

DynamicObject.TryDeleteMember(DeleteMemberBinder)

DynamicObject.TryInvokeMember(InvokeMemberBinder, object[], out object)

DynamicObject.TryConvert(ConvertBinder, out object)

DynamicObject.TryCreateInstance(CreateInstanceBinder, object[], out object)

DynamicObject.TryInvoke(InvokeBinder, object[], out object)

DynamicObject.TryBinaryOperation(BinaryOperationBinder, object, out object)

DynamicObject.TryUnaryOperation(UnaryOperationBinder, out object)

DynamicObject.TryGetIndex(GetIndexBinder, object[], out object)

DynamicObject.TrySetIndex(SetIndexBinder, object[], object)

DynamicObject.TryDeleteIndex(DeleteIndexBinder, object[])

DynamicObject.GetDynamicMemberNames()

DynamicObject.GetMetaObject(Expression)

object.Equals(object, object)

object.ReferenceEquals(object, object)

object.GetType()

object.MemberwiseClone()

Extension Methods

JNetCoreExtensions.Class<TClass>(TClass)

Constructors

Optional()

Default constructor: even if the corresponding Java class does not have one, it is mandatory for JCOBridge

public Optional()

Optional(params object[])

Generic constructor: it is useful for JCOBridge when there is a derived class which needs to pass arguments to the highest JVMBridgeBase class

public Optional(params object[] args)

Parameters

args object[]

Properties

BridgeClassName

Java class name to be instantiated

public override string BridgeClassName { get; }

Property Value

string

IsBridgeAbstract

true if the BridgeClassName is an abstract class, i.e. cannot be created an instance

public override bool IsBridgeAbstract { get; }

Property Value

bool

IsBridgeCloseable

true if the BridgeClassName implements Closeable

public override bool IsBridgeCloseable { get; }

Property Value

bool

IsBridgeInterface

true if the BridgeClassName is an interface, i.e. does not have any public constructor

public override bool IsBridgeInterface { get; }

Property Value

bool

IsBridgeStatic

true if the BridgeClassName is a static class, i.e. does not have any public constructor

public override bool IsBridgeStatic { get; }

Property Value

bool

Methods

Empty()

https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/Optional.html#empty()

public static Optional<T> Empty()

Returns

Optional<T>

Optional

Filter<Arg0objectSuperT>(Predicate<Arg0objectSuperT>)

https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/Optional.html#filter(java.util.function.Predicate)

public Optional<T> Filter<Arg0objectSuperT>(Predicate<Arg0objectSuperT> arg0) where Arg0objectSuperT : T

Parameters

arg0 Predicate<Arg0objectSuperT>

Predicate

Returns

Optional<T>

Optional

Type Parameters

Arg0objectSuperT

T

FlatMap<U, Arg0objectSuperT, Arg0ExtendsJava_Util_Optional_Arg0ExtendsU_, Arg0ExtendsU>(Function<Arg0objectSuperT, Arg0ExtendsJava_Util_Optional_Arg0ExtendsU_>)

https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/Optional.html#flatMap(java.util.function.Function)

public Optional<U> FlatMap<U, Arg0objectSuperT, Arg0ExtendsJava_Util_Optional_Arg0ExtendsU_, Arg0ExtendsU>(Function<Arg0objectSuperT, Arg0ExtendsJava_Util_Optional_Arg0ExtendsU_> arg0) where Arg0objectSuperT : T where Arg0ExtendsJava_Util_Optional_Arg0ExtendsU_ : Optional<Arg0ExtendsU> where Arg0ExtendsU : U

Parameters

arg0 Function<Arg0objectSuperT, Arg0ExtendsJava_Util_Optional_Arg0ExtendsU_>

Function

Returns

Optional<U>

Optional

Type Parameters

U

Arg0objectSuperT

T

Arg0ExtendsJava_Util_Optional_Arg0ExtendsU_

Optional<T>

Arg0ExtendsU

U

Get()

https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/Optional.html#get()

public T Get()

Returns

T

T

IfPresentOrElse<Arg0objectSuperT>(Consumer<Arg0objectSuperT>, Runnable)

https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/Optional.html#ifPresentOrElse(java.util.function.Consumer,java.lang.Runnable)

public void IfPresentOrElse<Arg0objectSuperT>(Consumer<Arg0objectSuperT> arg0, Runnable arg1) where Arg0objectSuperT : T

Parameters

arg0 Consumer<Arg0objectSuperT>

Consumer

arg1 Runnable

Runnable

Type Parameters

Arg0objectSuperT

T

IfPresent<Arg0objectSuperT>(Consumer<Arg0objectSuperT>)

https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/Optional.html#ifPresent(java.util.function.Consumer)

public void IfPresent<Arg0objectSuperT>(Consumer<Arg0objectSuperT> arg0) where Arg0objectSuperT : T

Parameters

arg0 Consumer<Arg0objectSuperT>

Consumer

Type Parameters

Arg0objectSuperT

T

IsEmpty()

https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/Optional.html#isEmpty()

public bool IsEmpty()

Returns

bool

bool

IsPresent()

https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/Optional.html#isPresent()

public bool IsPresent()

Returns

bool

bool

Map<U, Arg0objectSuperT, Arg0ExtendsU>(Function<Arg0objectSuperT, Arg0ExtendsU>)

https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/Optional.html#map(java.util.function.Function)

public Optional<U> Map<U, Arg0objectSuperT, Arg0ExtendsU>(Function<Arg0objectSuperT, Arg0ExtendsU> arg0) where Arg0objectSuperT : T where Arg0ExtendsU : U

Parameters

arg0 Function<Arg0objectSuperT, Arg0ExtendsU>

Function

Returns

Optional<U>

Optional

Type Parameters

U

Arg0objectSuperT

T

Arg0ExtendsU

U

Of(T)

https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/Optional.html#of(java.lang.Object)

public static Optional<T> Of(T arg0)

Parameters

arg0 T

T

Returns

Optional<T>

Optional

OfNullable(T)

https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/Optional.html#ofNullable(java.lang.Object)

public static Optional<T> OfNullable(T arg0)

Parameters

arg0 T

T

Returns

Optional<T>

Optional

OrElse(T)

https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/Optional.html#orElse(java.lang.Object)

public T OrElse(T arg0)

Parameters

arg0 T

T

Returns

T

T

OrElseGet<Arg0ExtendsT>(Supplier<Arg0ExtendsT>)

https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/Optional.html#orElseGet(java.util.function.Supplier)

public T OrElseGet<Arg0ExtendsT>(Supplier<Arg0ExtendsT> arg0) where Arg0ExtendsT : T

Parameters

arg0 Supplier<Arg0ExtendsT>

Supplier

Returns

T

T

Type Parameters

Arg0ExtendsT

T

OrElseThrow()

https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/Optional.html#orElseThrow()

public T OrElseThrow()

Returns

T

T

OrElseThrow<Arg0ExtendsX, X>(Supplier<Arg0ExtendsX>)

https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/Optional.html#orElseThrow(java.util.function.Supplier)

public T OrElseThrow<Arg0ExtendsX, X>(Supplier<Arg0ExtendsX> arg0) where Arg0ExtendsX : X

Parameters

arg0 Supplier<Arg0ExtendsX>

Supplier

Returns

T

T

Type Parameters

Arg0ExtendsX

X

X

Exceptions

Throwable

Or<Arg0ExtendsJava_Util_Optional_Arg0ExtendsT_, Arg0ExtendsT>(Supplier<Arg0ExtendsJava_Util_Optional_Arg0ExtendsT_>)

https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/Optional.html#or(java.util.function.Supplier)

public Optional<T> Or<Arg0ExtendsJava_Util_Optional_Arg0ExtendsT_, Arg0ExtendsT>(Supplier<Arg0ExtendsJava_Util_Optional_Arg0ExtendsT_> arg0) where Arg0ExtendsJava_Util_Optional_Arg0ExtendsT_ : Optional<Arg0ExtendsT> where Arg0ExtendsT : T

Parameters

arg0 Supplier<Arg0ExtendsJava_Util_Optional_Arg0ExtendsT_>

Supplier

Returns

Optional<T>

Optional

Type Parameters

Arg0ExtendsJava_Util_Optional_Arg0ExtendsT_

Optional<T>

Arg0ExtendsT

T

Stream()

https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/Optional.html#stream()

public Stream<T> Stream()

Returns

Stream<T>

Stream

Operators

implicit operator Optional(Optional<T>)

Converter from Optional<T> to Optional

public static implicit operator Optional(Optional<T> t)

Parameters

t Optional<T>

Returns

Optional