Interface BytecodeDeserializer

Functional Interface:

This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.

@FunctionalInterface
public interface BytecodeDeserializer

Represents a class that can deserialize constants from a byte stream.

A BytecodeSerializer establishes a byte encoding for objects. The BytecodeDeserializer used to deserialize an interpreter should follow the same encoding.

For example:

public class MyBytecodeDeserializer implements BytecodeDeserializer {
    @Override
    public Object deserialize(DeserializerContext context, DataInput buffer) throws IOException {
        byte objectCode = buffer.readByte();
        return switch (objectCode) {
            case 1 -> buffer.readLong();
            case 2 -> buffer.readUTF();
            case ...
        }
    }
}

Since:

24.2

See Also:

• GenerateBytecode.enableSerialization()

Nested Class Summary

Nested Classes

Modifier and Type	Interface	Description
static interface	BytecodeDeserializer.DeserializerContext	Interface for a generated class that can deserialize a BytecodeRootNode from a byte input.

Method Summary

Modifier and Type	Method	Description
Object	deserialize(BytecodeDeserializer.DeserializerContext context, DataInput buffer)	The deserialization process.

Method Details

deserialize

Object deserialize(BytecodeDeserializer.DeserializerContext context,
 DataInput buffer)
            throws IOException

The deserialization process. An object should be decoded from the buffer and returned.

The context is supplied so that a BytecodeDeserializer can transitively deserialize other root nodes (e.g., inner functions) if necessary.

Must be idempotent.

Throws:

IOException

Since:

24.2