/*

  *

  *

  */

 package com.damnhandy.uri.template;

 import java.io.Serializable;

 import java.util.regex.Pattern;

 /**

  * A Component.

  * 

  * @author <a href="ryan@damnhandy.com">Ryan J. McDonough</a>

  * @version $Revision: 1.1 $

  */

 public abstract class UriTemplateComponent implements Serializable

 {

    /** The serialVersionUID */

    private static final long serialVersionUID = -3653287624355221784L;

    /**

     * 

     */

    private final int startPosition;

    public UriTemplateComponent(final int startPoistion)

    {

       this.startPosition = startPoistion;

    }

    public abstract String getValue();

    /**

     * Get the startPosition of the component within the template string.

     * 

     * @return the startPosition.

     */

    public int getStartPosition()

    {

       return startPosition;

    }

    /**

     * Returns a string that contains a regular expression that matches the

     * URI template expression.

     * 

     * @return

     */

    public abstract Pattern getMatchPattern();

    /**

     * Get the endPosition.

     * 

     * @return the endPosition.

     */

    public int getEndPosition()

    {

       return startPosition + getValue().length();

    }

 }