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Jiffle is a raster algebra language that can be used to create new images from logical and mathematical expressions involving source images and user defined variables. It is intended to let users concentrate on algorithms rather than tedious boiler-plate code.

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/*
 * Copyright 2011 Michael Bedward
 * 
 * This file is part of jai-tools.
 *
 * jai-tools 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 3 of the 
 * License, or (at your option) any later version.
 *
 * jai-tools 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 jai-tools.  If not, see .
 * 
 */

package jaitools.jiffle.parser;

import java.util.Collections;
import java.util.List;

import jaitools.CollectionFactory;

/**
 * Used by the Jiffle compiler to accumulate ANTLR parsing error messages.
 * 
 * @author Michael Bedward
 * @since 1.1
 * @version $Id: DeferredErrorReporter.java 1387 2011-02-11 07:50:04Z michael.bedward $
 */
public class DeferredErrorReporter implements ParsingErrorReporter {
    
    private List errors = CollectionFactory.list();
    
    public void addError(String errorText) {
        errors.add(errorText);
    }
    
    public int getNumErrors() {
        return errors.size();
    }
    
    public List getErrors() {
        return Collections.unmodifiableList(errors);
    }
    
    public void clear() {
        errors.clear();
    }
}