org.shapelogic.streams
Class WrappedListStream<E>

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

Wraps a stream around a list.

Author:

Sami Badawi

Field Summary

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

WrappedListStream(java.util.List<E> inputList)

WrappedListStream(java.util.List<E> inputList, java.lang.String name, RecursiveContext recursiveContext)

Method Summary

E	get(int index) Get next element without advancing _current.
boolean	hasNext()
E	invokeIndex(int index) Calculate the value at an index.

Methods inherited from class org.shapelogic.streams.BaseListCommonStream

calcAddNext, 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

Constructor Detail

WrappedListStream

public WrappedListStream(java.util.List<E> inputList)

WrappedListStream

public WrappedListStream(java.util.List<E> inputList,
                         java.lang.String name,
                         RecursiveContext recursiveContext)

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>

get

public E get(int index)

Description copied from class: BaseListCommonStream

Get next element without advancing _current.

Specified by:

get in interface NumberedStream<E>

Overrides:

get in class BaseListCommonStream<E>

Returns:

hasNext

public boolean hasNext()

Specified by:

hasNext in interface java.util.Iterator<E>

Overrides:

hasNext in class BaseListCommonStream<E>