JavaPeerableExtensions.JavaAs<TResult>(IJavaPeerable) Method

Definition

Namespace:: Java.Interop

Assembly:: Java.Interop.dll

Important

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Try to coerce self to type TResult, checking that the coercion is valid on the Java side.

public static TResult? JavaAs<TResult>(this Java.Interop.IJavaPeerable? self) where TResult : class, Java.Interop.IJavaPeerable;

static member JavaAs : Java.Interop.IJavaPeerable -> 'Result (requires 'Result : null and 'Result :> Java.Interop.IJavaPeerable)

Type Parameters

TResult

The type to coerce self to.

Parameters

self: IJavaPeerable

A IJavaPeerable instance to coerce to type TResult.

Returns

TResult

A value of type TResult if the Java peer to self can be coerced to the Java type corresponding to TResult; otherwise, null.

Exceptions

ArgumentException

The Java peer type for TResult could not be found.

NotSupportedException

The type TResult or a Invoker type for TResult does not provide an activation constructor, a constructor with a singature of (ref JniObjectReference, JniObjectReferenceOptions) or (IntPtr, JniHandleOwnership).

Remarks

<block subset="none" type="note"> Implementations of IJavaPeerable consist of two halves: a Java peer and a managed peer. The PeerReference property associates the managed peer to the Java peer. </block> <block subset="none" type="note"> The JniTypeSignatureAttribute or RegisterAttribute custom attributes are used to associated a managed type to a Java type. </block>

Applies to

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