/*
* eXist Open Source Native XML Database
* Copyright (C) 2011 The eXist Project
* http://exist-db.org
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
* $Id$
*/
package org.exist.interpreter;
import org.exist.dom.persistent.DocumentSet;
import org.exist.dom.QName;
import org.exist.xquery.XPathException;
import org.exist.xquery.value.Item;
import org.exist.xquery.value.Sequence;
public interface FunctionCall extends Function {
/**
* Called by {@link Context} to resolve a call to a function that has not
* yet been declared. XQueryContext remembers all calls to undeclared functions
* and tries to resolve them after parsing has completed.
*
* @param functionDef
* @throws XPathException
*/
public void resolveForwardReference(Function functionDef) throws XPathException;
public QName getQName();
/**
* @param contextSequence
* @param contextItem
* @param seq
* @throws XPathException
*/
public Sequence evalFunction(Sequence contextSequence, Item contextItem, Sequence[] seq) throws XPathException;
public Sequence evalFunction(Sequence contextSequence, Item contextItem, Sequence[] seq, DocumentSet[] contextDocs) throws XPathException;
public boolean isRecursive();
}