TermTokenizer


1   package org.jbpm.identity.assignment;
2   
3   /**
4    * chops an actor assignment expression into terms.
5    */
6   public class TermTokenizer {
7   
8     private String   expression = null;
9     private int index = 0;
10    
11    public TermTokenizer(String   expression) {
12      this.expression = expression;
13    }
14  
15    public boolean hasMoreTerms() {
16      return (index!=-1);
17    }
18    
19    public String   nextTerm() {
20      String   term = null;
21      int startIndex = index;
22      index = expression.indexOf("-->", index);
23      if (index!=-1) {
24        term = expression.substring(startIndex, index).trim();
25        index+=3;
26      } else {
27        term = expression.substring(startIndex).trim();
28      }
29      return term;
30    }
31  }
32

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