tsdb.util.iterator

Class MoveIterator

java.lang.Object

tsdb.util.iterator.TsIterator

tsdb.util.iterator.MoveIterator

All Implemented Interfaces:

java.util.Iterator<TsEntry>, ProcessingChainEntry, ProcessingChainNode, ProcessingChainSupplier

Direct Known Subclasses:

AverageIterator, EvaluatingAggregationIterator, InputProcessingIterator, MergeIterator, MiddleIterator, MinDiffIterator, TsIteratorIterator

public abstract class MoveIterator
extends TsIterator

Time series iterator that stores the current element.

This iterator my simplify processing iterators.
Extending classes need to implement getNext() only.

Field Summary

Fields inherited from class tsdb.util.iterator.TsIterator

schema

Constructor Summary

Constructors

Constructor and Description
MoveIterator(TsSchema schema)

Method Summary

Modifier and Type	Method and Description
void	close() Signals that iterator does not contain a next element.
protected abstract TsEntry	getNext() Request next element.
boolean	hasNext() redirects processing to getNext()
TsEntry	next() redirects processing to getNext()

Methods inherited from class tsdb.util.iterator.TsIterator

getNames, getSchema, isLive, isNotLive, toSchemas, toString, toTimeSeries, toTimestampSeries, writeConsole, writeConsole, writeCSV

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Iterator

forEachRemaining, remove

Methods inherited from interface tsdb.util.processingchain.ProcessingChainNode

getProcessingChain, getProcessingTitle

Methods inherited from interface tsdb.util.processingchain.ProcessingChainEntry

createUnknown, of

Methods inherited from interface tsdb.util.processingchain.ProcessingChainSupplier

createUnknown

Constructor Detail

MoveIterator

public MoveIterator(TsSchema schema)

Method Detail

hasNext

public final boolean hasNext()

redirects processing to getNext()

next

public final TsEntry next()

redirects processing to getNext()

getNext

protected abstract TsEntry getNext()

Request next element.

It's guaranteed to not be called again when it first returns null (no next element).
This method should be called by MoveIterator internal only.

Returns:

next element or null if there is no next element

close

public void close()

Signals that iterator does not contain a next element.
So getNext() will not be called again.