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Vaadin 7 compatibility package for Vaadin 8

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/*
 * Copyright (C) 2000-2024 Vaadin Ltd
 *
 * This program is available under Vaadin Commercial License and Service Terms.
 *
 * See  for the full
 * license.
 */
package com.vaadin.v7.data.util.sqlcontainer;

import java.util.LinkedHashMap;
import java.util.Map;

/**
 * CacheMap extends LinkedHashMap, adding the possibility to adjust maximum
 * number of items. In SQLContainer this is used for RowItem -cache. Cache size
 * will be two times the page length parameter of the container.
 */
@Deprecated
class CacheMap extends LinkedHashMap {
    private static final long serialVersionUID = 679999766473555231L;
    private int cacheLimit = SQLContainer.CACHE_RATIO
            * SQLContainer.DEFAULT_PAGE_LENGTH;

    @Override
    protected boolean removeEldestEntry(Map.Entry eldest) {
        return size() > cacheLimit;
    }

    void setCacheLimit(int limit) {
        cacheLimit = limit > 0 ? limit : SQLContainer.DEFAULT_PAGE_LENGTH;
    }

    int getCacheLimit() {
        return cacheLimit;
    }
}