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• PullEvaluator.java

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////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
// Copyright (c) 2023 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.expr.elab;

import net.sf.saxon.expr.XPathContext;
import net.sf.saxon.om.SequenceIterator;
import net.sf.saxon.trans.XPathException;

/**
 * Interface implemented by evaluators that evaluate an expression in "pull" mode, that is,
 * by delivering a {@link SequenceIterator} over the results.
 */
@FunctionalInterface
public interface PullEvaluator {

    SequenceIterator iterate(XPathContext context) throws XPathException;
}