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/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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 org.apache.wicket.util.string;

/**
 * Typesafe interface to an ordered sequence of strings. An IStringIterator can be retrieved for the
 * sequence by calling iterator(), the number of Strings in the sequence can be determined by
 * calling size() and a given String can be retrieved by calling get(int index).
 * 
 * @author Jonathan Locke
 */
public interface IStringSequence
{
	/**
	 * Gets a string at a given index in the sequence
	 * 
	 * @param index
	 *            The index
	 * @return The string at the given index
	 * @throws IndexOutOfBoundsException
	 */
	String get(int index) throws IndexOutOfBoundsException;

	/**
	 * @return Typesafe string iterator
	 */
	IStringIterator iterator();

	/**
	 * @return Number of strings in this sequence
	 */
	int size();
}