org.graalvm.nativebridge

Interface BinaryMarshaller<T>

public interface BinaryMarshaller<T>

A marshaller used by the native bridge processor to read or write method parameters and results of a custom type. Marshallers are used to support types that are not directly implemented by the native bridge processor.

See Also:

JNIConfig.Builder

Method Summary

Modifier and Type	Method and Description
default int	inferSize(T object) Estimates a size in bytes needed to marshall given object.
static <T> BinaryMarshaller<T>	nullable(BinaryMarshaller<T> forMarshaller) Decorates forMarshaller by a BinaryMarshaller handling null values.
T	read(BinaryInput input) Reads the object value from the input and returns the recreated object.
void	write(BinaryOutput output, T object) Writes the object's value into the output.

Method Detail

read

T read(BinaryInput input)

Reads the object value from the input and returns the recreated object.

write

void write(BinaryOutput output,
           T object)

Writes the object's value into the output.

inferSize

default int inferSize(T object)

Estimates a size in bytes needed to marshall given object. The returned value is used to pre-allocate the BinaryOutput's buffer.

nullable

static <T> BinaryMarshaller<T> nullable(BinaryMarshaller<T> forMarshaller)

Decorates forMarshaller by a BinaryMarshaller handling null values. The returned BinaryMarshaller calls the forMarshaller only non-null values.