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    • com.dragome.forms.bindings.client.bean.CollectionConverters Maven / Gradle / Ivy

    /*
 * Copyright 2009 Andrew Pietsch 
 *
 * Licensed under the Apache License, Version 2.0 (the "License"); you 
 * may not use this file except in compliance with the License. You may 
 * obtain a copy of the License at 
 *      
 *      http://www.apache.org/licenses/LICENSE-2.0 
 *
 * Unless required by applicable law or agreed to in writing, software 
 * distributed under the License is distributed on an "AS IS" BASIS, 
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or 
 * implied. See the License for the specific language governing permissions 
 * and limitations under the License. 
 */

package com.dragome.forms.bindings.client.bean;

import java.util.ArrayList;
import java.util.Collection;
import java.util.HashMap;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
import java.util.SortedSet;
import java.util.TreeSet;

/**
 * Created by IntelliJ IDEA.
 * User: andrew
 * Date: Aug 6, 2009
 * Time: 5:19:48 PM
 * To change this template use File | Settings | File Templates.
 */
public class CollectionConverters
{
	public static final CollectionConverter COLLECTION_CONVERTER= new CollectionConverter()
	{
		public Collection fromBean(Collection source)
		{
			return source;
		}

		public Collection toBean(List source)
		{
			return new ArrayList(source);
		}
	};

	public static final CollectionConverter LIST_CONVERTER= new CollectionConverter()
	{
		public Collection fromBean(List source)
		{
			return source;
		}

		public List toBean(List source)
		{
			return new ArrayList(source);
		}
	};

	public static final CollectionConverter SET_CONVERTER= new CollectionConverter()
	{
		public Collection fromBean(Set source)
		{
			return source;
		}

		public Set toBean(List source)
		{
			return new HashSet(source);
		}
	};

	public static final CollectionConverter SORTED_SET_CONVERTER= new CollectionConverter()
	{
		public Collection fromBean(SortedSet source)
		{
			return source;
		}

		public SortedSet toBean(List source)
		{
			return new TreeSet(source);
		}
	};

	private HashMap, CollectionConverter> converters= new HashMap, CollectionConverter>();

	public CollectionConverters()
	{
		register(List.class, LIST_CONVERTER);
		register(Set.class, SET_CONVERTER);
		register(SortedSet.class, SORTED_SET_CONVERTER);
		register(Collection.class, COLLECTION_CONVERTER);
	}

	public  void register(Class collectionClass, CollectionConverter converter)
	{
		converters.put(collectionClass, converter);
	}

	@SuppressWarnings("unchecked")
	public  CollectionConverter getConverter(Class aClass)
	{
		return (CollectionConverter) converters.get(aClass);
	}
}
    
    
    
    

    




    
    
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