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// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#pragma once
namespace vespalib {
class Identifiable;
/**
* A predicate that is able to say either true or false when presented
* with a generic object.
**/
class ObjectPredicate
{
public:
/**
* Apply this predicate to the given object.
*
* @return true or false
* @param obj the object to check
**/
virtual bool check(const Identifiable &obj) const = 0;
/**
* empty
**/
virtual ~ObjectPredicate() { }
};
} // namespace vespalib
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