org.vishia.util

Class IndexMultiTableInteger.IteratorImpl<Type>

java.lang.Object

org.vishia.util.IndexMultiTableInteger.IteratorImpl<Type>

Type Parameters:

Type -

All Implemented Interfaces:

java.util.Iterator<Type>

Enclosing class:

IndexMultiTableInteger<Type>

private static class IndexMultiTableInteger.IteratorImpl<Type>
extends java.lang.Object
implements java.util.Iterator<Type>

This class is the Iterator for the outer class. Every IndexMultiTableInteger.iterator()-call produces one instance. It is possible to create some instances simultaneously.

Field Summary

Fields

Modifier and Type	Field and Description
private boolean	bHasNext True if hasNext.
private boolean	bHasNextProcessed true if hasnext-test is done.
private IndexMultiTableInteger.IteratorHelper	helper The helper contains the values of the iterator.
private int	lastkey Only for test.
private int	modcount

Constructor Summary

Constructors

Constructor and Description
IteratorImpl(IndexMultiTableInteger<Type> firstTable)
IteratorImpl(IndexMultiTableInteger<Type> firstTable, int startKey) Ctor for the Iterator with a range.

Method Summary

Modifier and Type	Method and Description
boolean	hasNext()
private void	next_i() executes the next(), on entry bHasNextProcessed is false.
Type	next()
void	remove()
private void	stop()

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Iterator

forEachRemaining

Field Detail

helper

private IndexMultiTableInteger.IteratorHelper helper

The helper contains the values of the iterator. Because there are a tree of tables, the current IteratorHelper of the current table depths is referenced. A IteratorHelper contains a parent and child reference. If the end of table of the current depth level is reached, the parent of the current helper is referenced here than, the next table is got, than the child is initialized and referenced here.

bHasNext

private boolean bHasNext

True if hasNext. The value is valid only if bHasNextProcessed is true.

bHasNextProcessed

private boolean bHasNextProcessed

true if hasnext-test is done.

modcount

private int modcount

lastkey

private int lastkey

Only for test.

Constructor Detail

IteratorImpl

IteratorImpl(IndexMultiTableInteger<Type> firstTable)

IteratorImpl

IteratorImpl(IndexMultiTableInteger<Type> firstTable,
             int startKey)

Ctor for the Iterator with a range.

Parameters:

firstTable -

startKey -

endKey -

Method Detail

hasNext

public boolean hasNext()

Specified by:

hasNext in interface java.util.Iterator<Type>

next

public Type next()

Specified by:

next in interface java.util.Iterator<Type>

next_i

private void next_i()

executes the next(), on entry bHasNextProcessed is false. If the table is a child table and its end is reached, this routine is called recursively with the now current parent, typical the parent contains a child table because the table is a hyper table. Than the child helper is initialized and reused, and this routine will be called a third time, now with the new child:

 child: end of table; parent: next table; child: test next table.
 

If the tree of tables is deeper than two, and the end of a child and also the parent table is reached, this routine is called recursively more as three times. The maximum of recursively call depends on the deepness of the table tree.

remove

public void remove()

Specified by:

remove in interface java.util.Iterator<Type>

stop

private void stop()