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19  
20  package org.apache.james.jspf.parser;
21  
22  import java.util.regex.Pattern;
23  
24  /**
25   * A term definition contains everything needed to match and create
26   * new Terms implementations.
27   */
28  public interface TermDefinition {
29  
30      /**
31       * Retrieve the pattern to be used to match a string against this record type.
32       * 
33       * @return the pattern for this term
34       */
35      public Pattern getPattern();
36  
37      /**
38       * The class implementing this Term type.
39       * 
40       * @return the class object.
41       */
42      public Class getTermDef();
43  
44      /**
45       * Return the number of groups to be expected from the pattern of this
46       * Term.
47       * 
48       * @return the number of groups
49       */
50      public int getMatchSize();
51  
52  }