net.yacy.kelondro.util

Class MergeIterator<E>

java.lang.Object

net.yacy.kelondro.util.MergeIterator<E>

All Implemented Interfaces:

java.lang.Cloneable, java.util.Iterator<E>, CloneableIterator<E>

public class MergeIterator<E>
extends java.lang.Object
implements CloneableIterator<E>

Field Summary

Fields

Modifier and Type	Field and Description
private CloneableIterator<E>	a
private CloneableIterator<E>	b
private java.util.Comparator<E>	comp
private java.lang.reflect.Method	merger
private E	na
private E	nb
static java.lang.reflect.Method	simpleMerge
private boolean	up

Constructor Summary

Constructors

Constructor and Description
MergeIterator(CloneableIterator<E> a, CloneableIterator<E> b, java.util.Comparator<E> c, java.lang.reflect.Method m, boolean up)

Method Summary

Methods

Modifier and Type	Method and Description
static <A> CloneableIterator<A>	cascade(java.util.Collection<CloneableIterator<A>> iterators, Order<A> c, java.lang.reflect.Method merger, boolean up)
private static <A> CloneableIterator<A>	cascade(java.util.Iterator<CloneableIterator<A>> iiterators, Order<A> c, java.lang.reflect.Method merger, boolean up)
MergeIterator<E>	clone(java.lang.Object modifier) clone the iterator using a modifier the modifier can be i.e.
void	close() a CloneableIterator should be closed after usage to free resources
boolean	hasNext()
static java.lang.Object	mergeEqualByReplace(java.lang.Object a, java.lang.Object b)
E	next()
private void	nexta()
private void	nextb()
void	remove()

Methods inherited from class java.lang.Object

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

Field Detail

comp

private final java.util.Comparator<E> comp

a

private final CloneableIterator<E> a

b

private final CloneableIterator<E> b

na

private E na

nb

private E nb

merger

private final java.lang.reflect.Method merger

up

private final boolean up

simpleMerge

public static final java.lang.reflect.Method simpleMerge

Constructor Detail

MergeIterator

public MergeIterator(CloneableIterator<E> a,
             CloneableIterator<E> b,
             java.util.Comparator<E> c,
             java.lang.reflect.Method m,
             boolean up)

Method Detail

close

public void close()

Description copied from interface: CloneableIterator

a CloneableIterator should be closed after usage to free resources

Specified by:

close in interface CloneableIterator<E>

clone

public MergeIterator<E> clone(java.lang.Object modifier)

Description copied from interface: CloneableIterator

clone the iterator using a modifier the modifier can be i.e. a re-start position

Specified by:

clone in interface CloneableIterator<E>

Returns:

nexta

private void nexta()

nextb

private void nextb()

hasNext

public boolean hasNext()

Specified by:

hasNext in interface java.util.Iterator<E>

next

public E next()

Specified by:

next in interface java.util.Iterator<E>

remove

public void remove()

Specified by:

remove in interface java.util.Iterator<E>

cascade

public static <A> CloneableIterator<A> cascade(java.util.Collection<CloneableIterator<A>> iterators,
                               Order<A> c,
                               java.lang.reflect.Method merger,
                               boolean up)

cascade

private static <A> CloneableIterator<A> cascade(java.util.Iterator<CloneableIterator<A>> iiterators,
                               Order<A> c,
                               java.lang.reflect.Method merger,
                               boolean up)

mergeEqualByReplace

public static java.lang.Object mergeEqualByReplace(java.lang.Object a,
                                   java.lang.Object b)