com.bigdata.btree.filter

Class LookaheadTupleFilter<E>

java.lang.Object

cutthecrap.utils.striterators.FilterBase

com.bigdata.btree.filter.LookaheadTupleFilter<E>

All Implemented Interfaces:

ITupleFilter<E>, IFilter, IPropertySet, Serializable, Cloneable

public class LookaheadTupleFilter<E>
extends FilterBase
implements ITupleFilter<E>

Lookahead filter for an ITuple. You can push back a single ITuple onto the filter.

Version:

$Id$

Author:

Bryan Thompson

See Also:

Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static interface	LookaheadTupleFilter.ILookaheadTupleIterator<E> Extends iterator semantics for ITuple pushback.

Constructor Summary

Constructors

Constructor and Description
LookaheadTupleFilter()

Method Summary

Methods

Modifier and Type	Method and Description
LookaheadTupleFilter.ILookaheadTupleIterator<E>	filterOnce(Iterator src, Object context) Wrap the source iterator with this filter.

Methods inherited from class cutthecrap.utils.striterators.FilterBase

addFilter, filter, getProperty, getRequiredProperty, setProperty, toString

Methods inherited from class java.lang.Object

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

Methods inherited from interface cutthecrap.utils.striterators.IFilter

filter

Methods inherited from interface cutthecrap.utils.striterators.IPropertySet

getProperty

Constructor Detail

LookaheadTupleFilter

public LookaheadTupleFilter()

Method Detail

filterOnce

public LookaheadTupleFilter.ILookaheadTupleIterator<E> filterOnce(Iterator src,
                                                         Object context)

Description copied from class: FilterBase

Wrap the source iterator with this filter.

Specified by:

filterOnce in interface ITupleFilter<E>

Specified by:

filterOnce in class FilterBase

Parameters:

src - The source iterator.

context - The iterator evaluation context.

Returns:

The wrapped iterator.