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

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package net.sf.xmlform.util;

import java.util.Collection;
import java.util.Collections;
import java.util.HashMap;
import java.util.Map;
import java.util.Set;

/**
 * @author Liu Zhikun
 */

public class ModifiabilityMap implements Map{
	private Map m,u;
	private Modifiability modifiability;
	public ModifiabilityMap(Modifiability modifi) {
		this(modifi,new HashMap());
	}
	public ModifiabilityMap(Modifiability modifi,int initialCapacity) {
		this(modifi,new HashMap(initialCapacity));
	}
	public ModifiabilityMap(Modifiability modifi,Map map) {
		modifiability=modifi;
		m=map;
		u=Collections.unmodifiableMap(map);
	}
	
	public Modifiability getModifiability() {
		return modifiability;
	}
	public void setModifiability(Modifiability modifiability) {
		this.modifiability = modifiability;
	}
	@Override
	public int size() {
		return m.size();
	}
	@Override
	public boolean isEmpty() {
		return m.isEmpty();
	}
	@Override
	public boolean containsKey(Object key) {
		return m.containsKey(key);
	}
	@Override
	public boolean containsValue(Object value) {
		return m.containsValue(value);
	}
	@Override
	public V get(Object key) {
		return m.get(key);
	}
	@Override
	public V put(K key, V value) {
		return isModifiable()?m.put(key, value):u.put(key, value);
	}
	@Override
	public V remove(Object key) {
		return isModifiable()?m.remove(key):u.remove(key);
	}
	@Override
	public void putAll(Map map) {
		if(isModifiable())
			m.putAll(map);
		else
			u.putAll(map);
	}
	@Override
	public void clear() {
		if(isModifiable())
			m.clear();
		else
			u.clear();
	}
	@Override
	public Set keySet() {
		return isModifiable()?m.keySet():u.keySet();
	}
	@Override
	public Collection values() {
		return isModifiable()?m.values():u.values();
	}
	@Override
	public Set> entrySet() {
		return isModifiable()?m.entrySet():u.entrySet();
	}
	@Override
	public int hashCode() {
		return m.hashCode();
	}
	@Override
	public boolean equals(Object obj) {
		if(obj==null||!(obj instanceof ModifiabilityMap))
			return false;
		return m.equals(obj);
	}
	@Override
	public String toString() {
		return m.toString();
	}
	private boolean isModifiable() {
		if(modifiability==null)
			return true;
		return modifiability.isModifiable();
	}
}