com.bigdata.rdf.spo

Class InGraphBinarySearchFilter<E extends ISPO>

java.lang.Object

com.bigdata.rdf.spo.SPOFilter<E>

com.bigdata.rdf.spo.InGraphBinarySearchFilter<E>

All Implemented Interfaces:

IElementFilter<E>, IFilterTest, Externalizable, Serializable

public final class InGraphBinarySearchFilter<E extends ISPO>
extends SPOFilter<E>
implements Externalizable

"IN" filter for the context position based on a sorted long[] of the acceptable graph identifiers. While evaluation of the access path will be ordered, the filter does not maintain evolving state so a hash set will likely beat a binary search.

Version:

$Id$

Author:

Bryan Thompson

See Also:

InGraphHashSetFilter, Serialized Form

Constructor Summary

Constructors

Constructor and Description
InGraphBinarySearchFilter() Deserialization constructor.
InGraphBinarySearchFilter(Iterable<? extends org.openrdf.model.URI> graphs)

Method Summary

Methods

Modifier and Type	Method and Description
boolean	isValid(Object o) True iff the argument is matched by the filter.
void	readExternal(ObjectInput in)
String	toString()
void	writeExternal(ObjectOutput out)

Methods inherited from class com.bigdata.rdf.spo.SPOFilter

canAccept

Methods inherited from class java.lang.Object

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

Constructor Detail

InGraphBinarySearchFilter

public InGraphBinarySearchFilter()

Deserialization constructor.

InGraphBinarySearchFilter

public InGraphBinarySearchFilter(Iterable<? extends org.openrdf.model.URI> graphs)

Parameters:

graphs - The set of acceptable graph identifiers.

Method Detail

isValid

public boolean isValid(Object o)

Description copied from interface: IFilterTest

True iff the argument is matched by the filter.

Specified by:

isValid in interface IFilterTest

Returns:

true iff that object is accepted by the filter.

toString

public String toString()

Overrides:

toString in class Object

readExternal

public void readExternal(ObjectInput in)
                  throws IOException,
                         ClassNotFoundException

Specified by:

readExternal in interface Externalizable

Throws:

IOException

ClassNotFoundException

writeExternal

public void writeExternal(ObjectOutput out)
                   throws IOException

Specified by:

writeExternal in interface Externalizable

Throws:

IOException