io.druid.java.util.common.collect

Class MoreIterators

java.lang.Object

io.druid.java.util.common.collect.MoreIterators

public class MoreIterators
extends Object

Constructor Summary

Constructors

Constructor and Description
MoreIterators()

Method Summary

Modifier and Type	Method and Description
static <X> Iterator<X>	after(Iterator<X> iterator, Runnable f) Run f immediately after the last element of iterator is generated.
static <X> Iterator<X>	before(Iterator<X> iterator, Runnable f) Run f immediately before the first element of iterator is generated.
static <X> Iterator<X>	bracket(Iterator<X> iterator, Runnable before, Runnable after)

Methods inherited from class java.lang.Object

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

Constructor Detail

MoreIterators

public MoreIterators()

Method Detail

bracket

public static <X> Iterator<X> bracket(Iterator<X> iterator,
                                      Runnable before,
                                      Runnable after)

before

public static <X> Iterator<X> before(Iterator<X> iterator,
                                     Runnable f)

Run f immediately before the first element of iterator is generated. Exceptions raised by f will prevent the requested behavior on the underlying iterator, and can be handled by the caller.

after

public static <X> Iterator<X> after(Iterator<X> iterator,
                                    Runnable f)

Run f immediately after the last element of iterator is generated. Exceptions must not be raised by f.