net.sf.xmlform.util.KeyValuePairs Maven / Gradle / Ivy

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package net.sf.xmlform.util;

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


/**
 * @author Liu Zhikun
 */

public class KeyValuePairs implements Cloneable {
	private Map texts=new HashMap(5);
	public void put(KeyValuePair kv){
		texts.put(kv.getKey(),kv);
	}
	public void putAll(KeyValuePairs texts){
		this.texts.putAll(texts.texts);
	}
	public int size(){
		return texts.size();
	}
	public KeyValuePair get(String key){
		if(!texts.containsKey(key))
			return null;
		return (KeyValuePair)texts.get(key);
	}
	public void clear(){
		texts.clear();
	}
	public boolean contains(String key){
		return texts.containsKey(key);
	}
	public KeyValuePair remove(String key){
		KeyValuePair text=get(key);
		texts.remove(key);
		return text;
	}
	public Set getKeys(){
		return texts.keySet();
	}
	public Object clone() {
		try {
			KeyValuePairs cloneObj=(KeyValuePairs)super.clone();
			cloneObj.texts=new HashMap();
			Iterator kvIt=texts.values().iterator();
			while(kvIt.hasNext()){
				KeyValuePair kv=(KeyValuePair)((KeyValuePair)kvIt.next()).clone();
				cloneObj.texts.put(kv.getKey(), kv);
			}
			return cloneObj;
		} catch (CloneNotSupportedException e) {
		    throw new IllegalStateException(e);
		}
	}
}