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Simply utility methods used across other Molindo projects

There is a newer version: 3.0.0

/**
 * Copyright 2010 Molindo GmbH
 *
 * 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 at.molindo.utils.collections;

import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collection;
import java.util.HashSet;
import java.util.TreeSet;

public class CollectionBuilder> {

	public static  CollectionBuilder> list(V... v) {
		return builder(new ArrayList()).addAll(v);
	}

	public static  CollectionBuilder> set(V... v) {
		return builder(new HashSet()).addAll(v);
	}

	public static  CollectionBuilder> sortedSet(V... v) {
		return builder(new TreeSet()).addAll(v);
	}

	public static  CollectionBuilder> list(Class cls) {
		return builder(new ArrayList());
	}

	public static  CollectionBuilder> set(Class cls) {
		return builder(new HashSet());
	}

	public static  CollectionBuilder> sortedSet(Class cls) {
		return builder(new TreeSet());
	}

	public static > CollectionBuilder builder(C collection) {
		return new CollectionBuilder(collection);
	}

	private final C _collection;

	protected CollectionBuilder(C collection) {
		if (collection == null) {
			throw new NullPointerException("collection");
		}
		_collection = collection;
	}

	public C get() {
		return _collection;
	}

	public CollectionBuilder add(V e) {
		_collection.add(e);
		return this;
	}

	public CollectionBuilder addAll(Collection c) {
		_collection.addAll(c);
		return this;
	}

	public CollectionBuilder addAll(V... e) {
		_collection.addAll(Arrays.asList(e));
		return this;
	}
}