com.netflix.concurrency.limits

Interface Strategy<ContextT>

Type Parameters:

ContextT - Context type used to partition the limit. Void if none.

All Known Implementing Classes:

LookupPartitionStrategy, PredicatePartitionStrategy, SimpleStrategy

public interface Strategy<ContextT>

Contract for enforcing a concurrency limit with optional partitioning of the limit.

Nested Class Summary

Nested Classes

Modifier and Type	Interface and Description
static interface	Strategy.Token Representation of a single acquired Token from the strategy.

Method Summary

Modifier and Type	Method and Description
void	setLimit(int limit) Update the strategy with a new limit
java.util.Optional<Strategy.Token>	tryAcquire(ContextT context) Try to acquire a token from the limiter.

Method Detail

tryAcquire

java.util.Optional<Strategy.Token> tryAcquire(ContextT context)

Try to acquire a token from the limiter.

Parameters:

context - Context of the request for partitioned limits

Returns:

Optional.empty() if limit exceeded or a Strategy.Token that must be released when the operation completes.

setLimit

void setLimit(int limit)

Update the strategy with a new limit

Parameters:

limit -