org.shapelogic.streams
Class IteratorStream<E>

java.lang.Object
  org.shapelogic.streams.BaseCommonStream<E>
      org.shapelogic.streams.BaseListCommonStream<E>
          org.shapelogic.streams.IteratorStream<E>

All Implemented Interfaces:

java.lang.Iterable<E>, java.util.Iterator<E>, CalcValue<E>, ContextGettable, LazyCalc<E>, RecursiveContext, ListStream<E>, NumberedStream<E>, Stream<E>, StreamProperties

public class IteratorStream<E>
extends BaseListCommonStream<E>

Stream based on Iterator that can be set.

Author:

Sami Badawi

Field Summary

protected java.util.Iterator<E>

_iterator

Fields inherited from class org.shapelogic.streams.BaseListCommonStream

_list

Fields inherited from class org.shapelogic.streams.BaseCommonStream

_context, _current, _dirty, _last, _maxLast, _name, _nullLegalValue, _parentContext, _query, _value

Constructor Summary

IteratorStream(java.util.Iterator<E> iterator)

IteratorStream(java.util.Iterator<E> iterator, int maxLast)

Method Summary

java.util.Iterator<E>	getIterator()
boolean	hasNext()
E	invokeIndex(int index) Calculate the value at an index.
void	setIterator(java.util.Iterator<E> iterator)

Methods inherited from class org.shapelogic.streams.BaseListCommonStream

calcAddNext, get, getCurrentSize, getList, hasNextBase, isCached, isRandomAccess, iterator, next, setLastFromInput, setList

Methods inherited from class org.shapelogic.streams.BaseCommonStream

getContext, getInContext, getIndex, getLast, getMaxLast, getName, getParentContext, getValue, isDeterministic, isDirty, isNullLegalValue, remove, setMaxLast, setNullLegalValue, setup

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.shapelogic.streams.NumberedStream

getIndex, getLast, getMaxLast, setMaxLast

Methods inherited from interface org.shapelogic.calculation.LazyCalc

isDirty, setup

Methods inherited from interface org.shapelogic.calculation.CalcValue

getValue

Methods inherited from interface java.util.Iterator

remove

Field Detail

_iterator

protected java.util.Iterator<E> _iterator

Constructor Detail

IteratorStream

public IteratorStream(java.util.Iterator<E> iterator,
                      int maxLast)

IteratorStream

public IteratorStream(java.util.Iterator<E> iterator)

Method Detail

invokeIndex

public E invokeIndex(int index)

Description copied from class: BaseListCommonStream

Calculate the value at an index.
So it gets the needed input value and call the appropriate invoke function.
Can this be used for a filter call?
The index does not make sense for a filter since you do not know where the input is coming from. So maybe just ignore it.
This is a little messy but less messy that what is there now.

Specified by:

invokeIndex in class BaseListCommonStream<E>

hasNext

public boolean hasNext()

Specified by:

hasNext in interface java.util.Iterator<E>

Overrides:

hasNext in class BaseListCommonStream<E>

getIterator

public java.util.Iterator<E> getIterator()

setIterator

public void setIterator(java.util.Iterator<E> iterator)