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package org.javimmutable.collections;

/**
 * Interface for containers that allow access to values by an integer index.
 *
 * @param 
 */
public interface Indexed
{
    /**
     * Retrieve the value.  The index must be valid for the container's current size (i.e. [0-size)
     *
     * @param index
     * @return
     * @throws IndexOutOfBoundsException if index is out of bounds
     */
    T get(int index);

    /**
     * Retrieve the number of values available in the container.
     *
     * @return
     */
    public int size();
}