com.bigdata.bop.rdf.filter

Class NativeDistinctFilter.DistinctFilterImpl

java.lang.Object

cutthecrap.utils.striterators.FilterBase

cutthecrap.utils.striterators.Filter

com.bigdata.bop.rdf.filter.NativeDistinctFilter.DistinctFilterImpl

All Implemented Interfaces:

ICloseable, IFilter, IFilterTest, IPropertySet, Serializable, Cloneable

Enclosing class:

NativeDistinctFilter

public static class NativeDistinctFilter.DistinctFilterImpl
extends Filter
implements ICloseable

A Filter which passes only the DISTINCT ISPOs and is backed by a scalable data structure (BTree or HTree).

Author:

Bryan Thompson

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
NativeDistinctFilter.DistinctFilterImpl(IPropertySet properties) DISTINCT ISPO filter based on persistence capable data structures.

Method Summary

Methods

Modifier and Type	Method and Description
void	close() Release resources associated with the filter.
protected void	finalize()
boolean	isValid(Object obj) Vectored DISTINCT filter.

Methods inherited from class cutthecrap.utils.striterators.Filter

filterOnce

Methods inherited from class cutthecrap.utils.striterators.FilterBase

addFilter, filter, getProperty, getRequiredProperty, setProperty, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

NativeDistinctFilter.DistinctFilterImpl

public NativeDistinctFilter.DistinctFilterImpl(IPropertySet properties)

DISTINCT ISPO filter based on persistence capable data structures.

Parameters:

properties - Used to configure the DISTINCT filter.

See Also:

DistinctFilter.Annotations

Method Detail

finalize

protected void finalize()
                 throws Throwable

Overrides:

finalize in class Object

Throws:

Throwable

close

public void close()

Release resources associated with the filter.

Note: This is done automatically by finalize(), but it should be done pro-actively whenever possible.

Specified by:

close in interface ICloseable

See Also:

IStriterator does not support close() protocol for Ifilter

isValid

public boolean isValid(Object obj)

Vectored DISTINCT filter.

Specified by:

isValid in interface IFilterTest

Specified by:

isValid in class Filter

Returns:

true iff that object is accepted by the filter.