org.shapelogic.streams
Class NamedNumberedStream<E>

java.lang.Object
  org.shapelogic.streams.NamedNumberedStream<E>

All Implemented Interfaces:

java.util.Iterator<E>, CalcValue<E>, LazyCalc<E>, NumberedStream<E>, Stream<E>

public class NamedNumberedStream<E>
extends java.lang.Object
implements NumberedStream<E>

Get a Named Stream out of the context.

Author:

Sami Badawi

Field Summary

protected NumberedStream<E>	_inputStream
protected java.lang.String	_key

Constructor Summary

NamedNumberedStream(java.lang.String key)

NamedNumberedStream(java.lang.String key, int maxLast)

Method Summary

E	get(int input) Get the calculate value for index based on the previous stream So it just calls invoke(getInputStream().get(index), index)
int	getIndex() Index of last successfully processed element.
static NumberedStream	getInstance(java.lang.String key)
int	getLast() Last possible element.
int	getMaxLast() Set a max value for last possible element.
E	getValue() Starts a lazy calculation.
boolean	hasNext()
boolean	isDirty() When dirty is false that means that the calculated value can be used
E	next()
void	remove()
void	setMaxLast(int maxLast) Set a max value for last possible element.
void	setup() Currently not super well define used for 2 purposes: Reset: called from the outside if you want to reuse it init: Called from the inside when calculation start to have everything setup maybe the semantic could work for both? TODO: This should be separated better.

Methods inherited from class java.lang.Object

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

Field Detail

_key

protected java.lang.String _key

_inputStream

protected NumberedStream<E> _inputStream

Constructor Detail

NamedNumberedStream

public NamedNumberedStream(java.lang.String key,
                           int maxLast)

NamedNumberedStream

public NamedNumberedStream(java.lang.String key)

Method Detail

getInstance

public static NumberedStream getInstance(java.lang.String key)

get

public E get(int input)

Description copied from interface: NumberedStream

Get the calculate value for index based on the previous stream So it just calls invoke(getInputStream().get(index), index)

Specified by:

get in interface NumberedStream<E>

Returns:

getIndex

public int getIndex()

Description copied from interface: NumberedStream

Index of last successfully processed element.

Specified by:

getIndex in interface NumberedStream<E>

getLast

public int getLast()

Description copied from interface: NumberedStream

Last possible element.

Specified by:

getLast in interface NumberedStream<E>

getMaxLast

public int getMaxLast()

Description copied from interface: NumberedStream

Set a max value for last possible element.

Specified by:

getMaxLast in interface NumberedStream<E>

setMaxLast

public void setMaxLast(int maxLast)

Description copied from interface: NumberedStream

Set a max value for last possible element.

Specified by:

setMaxLast in interface NumberedStream<E>

isDirty

public boolean isDirty()

Description copied from interface: LazyCalc

When dirty is false that means that the calculated value can be used

Specified by:

isDirty in interface LazyCalc<E>

setup

public void setup()

Description copied from interface: LazyCalc

Currently not super well define used for 2 purposes: Reset: called from the outside if you want to reuse it init: Called from the inside when calculation start to have everything setup maybe the semantic could work for both? TODO: This should be separated better.

Specified by:

setup in interface LazyCalc<E>

getValue

public E getValue()

Description copied from interface: CalcValue

Starts a lazy calculation. If dirty do calc() else return cached value. This should maybe be moved up in the hierarchy

Specified by:

getValue in interface CalcValue<E>

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>