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package org.apache.uima.cas.admin;

import org.apache.uima.cas.CASException;

 * Defines a pre-order on types. This pre-order is later embedded in a total order an can be used in
 * index comparators.
00030 public interface LinearTypeOrderBuilder {

   * Add pairs types[i] < types[i+1], for each i < (types.length-1), to the partial sort
   * order. This method can be called as often as desired. It will throw an exception if the pairs
   * could not be successfully added to the relation. A pair can not be added if the resulting
   * relation is no longer a partial order. If you need to know exactly which pair fails, always
   * call add() with a two-element array.
   * @param types
   * @exception CASException
   *              When adding pairs would make order inconsistent.
  void add(String[] types) throws CASException;

   * Return a total order of the type names added earlier that is consistent with the pre-order
   * defined through calls to add().
   * @return An array of Strings in ascending order.
  LinearTypeOrder getOrder() throws CASException;


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