org.apache.gobblin.ack

Class HierarchicalAckable

java.lang.Object

org.apache.gobblin.ack.HierarchicalAckable

All Implemented Interfaces:

Closeable, AutoCloseable

public class HierarchicalAckable
extends Object
implements Closeable

An Ackable used to ack other Ackables when a set of children ackables are all acknowledged. This is useful when forking a record, as we don't want to ack the original record until all children have been acked. Usage: HierarchicalAckable ackable = new HierarchicalAckable(list_of_parent_ackables); Ackable childAckable = ackable.newChildAckable(); ackable.close(); // Must close HierarchicalAckable to indicate no more children will be created. childAckable.ack(); // When acking all children, parents will be acked.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	HierarchicalAckable.ChildrenFailedException Indicates that at least one of the children Ackables was nacked.

Constructor Summary

Constructors

Constructor and Description
HierarchicalAckable()

Method Summary

Modifier and Type	Method and Description
void	close() Indicates no more children will be created.
Ackable	newChildAckable()

Methods inherited from class java.lang.Object

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

Constructor Detail

HierarchicalAckable

public HierarchicalAckable()

Method Detail

newChildAckable

public Ackable newChildAckable()

Returns:

A new child Ackable that must be acked before parents are acked.

close

public void close()

Indicates no more children will be created.

Specified by:

close in interface Closeable

Specified by:

close in interface AutoCloseable