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A set of interfaces and classes that define a Java collection framework.

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/************************************************************************
 * Copyright (c) Crater Dog Technologies(TM).  All Rights Reserved.     *
 ************************************************************************
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.        *
 *                                                                      *
 * This code is free software; you can redistribute it and/or modify it *
 * under the terms of The MIT License (MIT), as published by the Open   *
 * Source Initiative. (See http://opensource.org/licenses/MIT)          *
 ************************************************************************/
package craterdog.collections.abstractions;

import craterdog.collections.interfaces.Dynamic;
import org.slf4j.ext.XLogger;
import org.slf4j.ext.XLoggerFactory;


/**
 * This abstract class implements a collection that allows its internal structure to be
 * directly manipulated.
 *
 * @author Derk Norton
 * @param  The type of element managed by the collection.
 */
public abstract class OpenCollection extends Collection implements Dynamic {

    static private final XLogger logger = XLoggerFactory.getXLogger(OpenCollection.class);


    @Override
    public int addElements(E[] elements) {
        logger.entry(elements);
        int count = 0;
        for (E element : elements) {
            if (addElement(element)) count++;
        }
        logger.exit(count);
        return count;
    }


    @Override
    public int addElements(Iterable elements) {
        logger.entry(elements);
        int count = 0;
        for (E element : elements) {
            if (addElement(element)) count++;
        }
        logger.exit(count);
        return count;
    }


    @Override
    public int removeElements(E[] elements) {
        logger.entry(elements);
        int count = 0;
        for (E element : elements) {
            if (removeElement(element)) {
                count++;
            }
        }
        logger.exit(count);
        return count;
    }


    @Override
    public int removeElements(Iterable elements) {
        logger.entry(elements);
        int count = 0;
        for (E element : elements) {
            if (removeElement(element)) {
                count++;
            }
        }
        logger.exit(count);
        return count;
    }

}