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• StatefulSystemFunction.java

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net.sf.saxon.functions.StatefulSystemFunction Maven / Gradle / Ivy

////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
// 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;

public interface StatefulSystemFunction {

    /**
     * Make a copy of this SystemFunction. This is required only for system functions such as regex
     * functions that maintain state on behalf of a particular caller.
     *
     * @return a copy of the system function able to contain its own copy of the state on behalf of
     * the caller.
     */

    SystemFunction copy();
}