org.databene.formats.util

Class FilteringDataIterator<E>

java.lang.Object

org.databene.formats.util.DataIteratorAdapter<E,E>

org.databene.formats.util.DataIteratorProxy<E>

org.databene.formats.util.FilteringDataIterator<E>

Type Parameters:

E - the type of data to iterate

All Implemented Interfaces:

Closeable, AutoCloseable, DataIterator<E>

public class FilteringDataIterator<E>
extends DataIteratorProxy<E>

DataIterator proxy which applies a Filter to the data provides by its source. Created: 24.07.2011 10:19:41

Since:

0.6.0

Author:

Volker Bergmann

Field Summary

Fields

Modifier and Type	Field and Description
protected org.databene.commons.Filter<E>	filter

Fields inherited from class org.databene.formats.util.DataIteratorAdapter

source

Constructor Summary

Constructors

Constructor and Description
FilteringDataIterator(DataIterator<E> source, org.databene.commons.Filter<E> filter)

Method Summary

Modifier and Type	Method and Description
DataContainer<E>	next(DataContainer<E> wrapper) Returns the container with the next data element if available, otherwise null.

Methods inherited from class org.databene.formats.util.DataIteratorProxy

getType

Methods inherited from class org.databene.formats.util.DataIteratorAdapter

close, getSourceContainer, nextOfSource

Methods inherited from class java.lang.Object

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

Field Detail

filter

protected org.databene.commons.Filter<E> filter

Constructor Detail

FilteringDataIterator

public FilteringDataIterator(DataIterator<E> source,
                             org.databene.commons.Filter<E> filter)

Method Detail

next

public DataContainer<E> next(DataContainer<E> wrapper)

Description copied from interface: DataIterator

Returns the container with the next data element if available, otherwise null.

Specified by:

next in interface DataIterator<E>

Overrides:

next in class DataIteratorProxy<E>

Parameters:

wrapper - a DataContainer to receive the iterated data

Returns:

a DataContainer that holds the next element, or null if none is available