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package com.moon.core.util;

import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;

/**
 * @author moonsky
 */
public class StringKeyHashMap extends HashMap implements PropertiesSupplier {

    private static final long serialVersionUID = 362498820763181268L;

    public StringKeyHashMap(int initialCapacity, float loadFactor) { super(initialCapacity, loadFactor); }

    public StringKeyHashMap(int initialCapacity) { super(initialCapacity); }

    public StringKeyHashMap() { }

    public StringKeyHashMap(Map m) { super(m); }

    public StringKeyHashMap(Map... maps) {
        super(MapUtil.sizeOfAll(maps));
        putAll(maps);
    }

    /*
     * --------------------------------------------------------------------------------
     * methods
     * --------------------------------------------------------------------------------
     */

    public void putAll(Map... maps) { MapUtil.putAll(this, maps); }

    public Iterator propertyNames() { return keySet().iterator(); }
}