com.bigdata.relation.rule.eval

Class SolutionFilter<E>

java.lang.Object

com.bigdata.relation.rule.eval.SolutionFilter<E>

All Implemented Interfaces:

IElementFilter<ISolution<E>>, IFilterTest, Serializable

public class SolutionFilter<E>
extends Object
implements IElementFilter<ISolution<E>>

Resolves an ISolution to its element and delegates the filter test to an IElementFilter suitable for the expected element type.

Version:

$Id$

Author:

Bryan Thompson

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
SolutionFilter(IElementFilter<E> delegate)

Method Summary

Methods

Modifier and Type	Method and Description
boolean	canAccept(Object o) Return true iff this this filter can be used on the specified object (filter on the object class).
boolean	isValid(Object o) True iff the argument is matched by the filter.
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

SolutionFilter

public SolutionFilter(IElementFilter<E> delegate)

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.

canAccept

public boolean canAccept(Object o)

Description copied from interface: IElementFilter

Return true iff this this filter can be used on the specified object (filter on the object class).

Note: This was added to make it possible filter out cases where the runtime type system was throwing a ClassCastException in the IFilterTest.isValid(Object) implementation.

Specified by:

canAccept in interface IElementFilter<ISolution<E>>

Parameters:

o - An object of some type.

Returns:

true if the element can be inspected by this filter.

toString

public String toString()

Overrides:

toString in class Object