Package io.roastedroot.proxywasm

Class SharedData

java.lang.Object

io.roastedroot.proxywasm.SharedData

public class SharedData
extends Object

Represents a unit of shared data retrieved from the host environment via SharedDataHandler.getSharedData(String).

This class encapsulates the data itself (as a byte array) and its associated Compare-And-Swap (CAS) value. The CAS value acts as a version identifier, enabling optimistic concurrency control when updating shared data using SharedDataHandler.setSharedData(String, byte[], int).

Constructor Summary

Constructors

Constructor	Description
SharedData(byte[] data, int cas)	Constructs a new SharedData instance.

Method Summary

Modifier and Type	Method	Description
int	cas()	Gets the Compare-And-Swap (CAS) value associated with this data.
byte[]	data()	Gets the raw data bytes.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

SharedData

public SharedData(byte[] data,
                  int cas)

Constructs a new SharedData instance.

Parameters:

data - The raw byte data retrieved from the shared data store. This might be null if the key was found but had no associated value, depending on the SharedDataHandler implementation.

cas - The Compare-And-Swap (version) value associated with this data. A value of 0 typically indicates the key did not exist or CAS is not supported/applicable.

Method Detail

data

public byte[] data()

Gets the raw data bytes.

Returns:

The byte array representing the shared data's value. May be null.

cas

public int cas()

Gets the Compare-And-Swap (CAS) value associated with this data. This value should be passed back to SharedDataHandler.setSharedData(String, byte[], int) when performing a conditional update.

Returns:

The integer CAS value.