io.druid.collections

Interface BlockingPool<T>

All Known Implementing Classes:

DefaultBlockingPool, DummyBlockingPool

public interface BlockingPool<T>

Method Summary

Modifier and Type	Method and Description
int	maxSize()
ReferenceCountingResourceHolder<T>	take() Take a resource from the pool, waiting if necessary until an element becomes available.
ReferenceCountingResourceHolder<T>	take(long timeoutMs) Take a resource from the pool, waiting up to the specified wait time if necessary for an element to become available.
ReferenceCountingResourceHolder<List<T>>	takeBatch(int elementNum) Take resources from the pool, waiting if necessary until the elements of the given number become available.
ReferenceCountingResourceHolder<List<T>>	takeBatch(int elementNum, long timeoutMs) Take resources from the pool, waiting up to the specified wait time if necessary for elements of the given number to become available.

Method Detail

maxSize

int maxSize()

take

ReferenceCountingResourceHolder<T> take(long timeoutMs)

Take a resource from the pool, waiting up to the specified wait time if necessary for an element to become available.

Parameters:

timeoutMs - maximum time to wait for a resource, in milliseconds.

Returns:

a resource, or null if the timeout was reached

take

ReferenceCountingResourceHolder<T> take()

Take a resource from the pool, waiting if necessary until an element becomes available.

Returns:

a resource

takeBatch

ReferenceCountingResourceHolder<List<T>> takeBatch(int elementNum,
                                                   long timeoutMs)

Take resources from the pool, waiting up to the specified wait time if necessary for elements of the given number to become available.

Parameters:

elementNum - number of resources to take

timeoutMs - maximum time to wait for resources, in milliseconds.

Returns:

a resource, or null if the timeout was reached

takeBatch

ReferenceCountingResourceHolder<List<T>> takeBatch(int elementNum)

Take resources from the pool, waiting if necessary until the elements of the given number become available.

Parameters:

elementNum - number of resources to take

Returns:

a resource