com.atlassian.vcache.internal

Interface RequestContext

All Known Implementing Classes:

DefaultRequestContext

public interface RequestContext

Represents the context for a request. Implementations must be thread-safe.

Since:

1.0.0

Method Summary

Modifier and Type	Method and Description
<T> T	computeIfAbsent(Object key, Supplier<T> supplier) Returns the value associated with the specified key, or computes it atomically using the provided supplier.
<T> Optional<T>	get(Object key) Returns the value associated with the specified key, or Optional.empty().
String	partitionIdentifier() Returns the partition identifier

Method Detail

partitionIdentifier

String partitionIdentifier()

Returns the partition identifier

Returns:

the partition identifier

computeIfAbsent

<T> T computeIfAbsent(Object key,
                      Supplier<T> supplier)

Returns the value associated with the specified key, or computes it atomically using the provided supplier. The provided supplier must not attempt to perform any other mutations on the request context.

Type Parameters:

T - the return type

Parameters:

key - the key to retrieve the value under.

supplier - the supplier to create the missing value. Should be short and sweet and not mutate the request context.

Returns:

the current value associated with the key, or a new value created with the provided supplier.

get

<T> Optional<T> get(Object key)

Returns the value associated with the specified key, or Optional.empty().