AbstractImmutableMap.java

package triaina.commons.collection;

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

import triaina.commons.exception.UnsupportedRuntimeException;


public abstract class AbstractImmutableMap<K, V> implements Map<K, V> {
    private Map<K, V> mMap;

    public AbstractImmutableMap(Map<K, V> map) {
        mMap = map;
    }

    @Override
    public V get(Object key) {
        return mMap.get(key);
    }

    /**
     * @hide
     */
    @Override
    public V put(K key, V value) {
        throw new UnsupportedRuntimeException("this map is immutable");
    }

    /**
     * @hide
     */
    @Override
    public void clear() {
        throw new UnsupportedRuntimeException("this map is immutable");
    }

    @Override
    public boolean containsKey(Object key) {
        return mMap.containsKey(key);
    }

    @Override
    public boolean containsValue(Object value) {
        return mMap.containsValue(value);
    }

    /**
     * @hide
     */
    @Override
    public Set<java.util.Map.Entry<K, V>> entrySet() {
        throw new UnsupportedRuntimeException("this map is immutable");
    }

    @Override
    public boolean isEmpty() {
        return mMap.isEmpty();
    }

    @Override
    public Set<K> keySet() {
        return new ImmutableHashSet<K>(mMap.keySet());
    }

    /**
     * @hide
     */
    @Override
    public void putAll(Map<? extends K, ? extends V> map) {
        throw new UnsupportedRuntimeException("this map is immutable");
    }

    /**
     * @hide
     */
    @Override
    public V remove(Object key) {
        throw new UnsupportedRuntimeException("this map is immutable");
    }

    @Override
    public int size() {
        return mMap.size();
    }

    /**
     * @hide
     */
    @Override
    public Collection<V> values() {
        throw new UnsupportedRuntimeException("this map is immutable");
    }
}