IndexFieldList.java

/*
 * mongobrowser - a webstart gui application for viewing, 
 *                editing and administering a Mongo Database
 * Copyright 2009-2011 MeBigFatGuy.com
 * Copyright 2009-2011 Dave Brosius
 * 
 * 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.mebigfatguy.mongobrowser.model;

import java.io.Serializable;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Iterator;
import java.util.List;

public class IndexFieldList implements Iterable<IndexField>, Serializable {

	private static final long serialVersionUID = -2452588491740324146L;
	private final List<IndexField> indexFields = new ArrayList<IndexField>();

	public IndexFieldList() {
	}

	public IndexFieldList(Collection<IndexField> fields) {
		indexFields.addAll(fields);
	}

	public void add(String fieldName, boolean ascending) {
		IndexField indexField = new IndexField(fieldName, ascending);
		int index = indexFields.indexOf(indexField);
		if (index < 0) {
			indexFields.add(indexField);
		} else {
			indexFields.set(index, indexField);
		}
	}

	@Override
	public Iterator<IndexField> iterator() {
		return indexFields.iterator();
	}

	public int size() {
		return indexFields.size();
	}

	public IndexField get(int index) {
		return indexFields.get(index);
	}

	@Override
	public String toString() {
		return indexFields.toString();
	}
}