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////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
// Copyright (c) 2018-2022 Saxonica Limited
// This Source Code Form is subject to the terms of the Mozilla Public License, v. 2.0.
// If a copy of the MPL was not distributed with this file, You can obtain one at http://mozilla.org/MPL/2.0/.
// This Source Code Form is "Incompatible With Secondary Licenses", as defined by the Mozilla Public License, v. 2.0.
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
package net.sf.saxon.functions.registry;
/**
* This is a marker interface representing an abstract superclass of JavaExtensionFunctionFactory
* and DotNetExtensionFunctionFactory. These play equivalent roles in the system: that is, they
* are responsible for determining how the QNames of extension functions are bound to concrete
* implementation classes; but they do not share the same interface.
* This interface was introduced in Saxon 8.9. Prior to that, ExtensionFunctionFactory
* was a concrete class - the class now named JavaExtensionFunctionFactory.
*/
public interface ExtensionFunctionFactory {
}