Examples of org.cipres.treebase.RangeExpression

org.cipres.treebase.RangeExpression
RangeExpression
Parse and analyze numeric range expressions. Transform them into Hibernate Criteria objects.

Legal syntax is any sequence of the following, separated by commas or semicolons:
- "10..50"
- "10.."
- "..50"
- "37"
- (empty string)
And whitespace is ignored.

The current parser allows any number of dots in place of "..". This should be construed as a bug.

TO DO: "< 50", "<= 50", "> 50", ">= 50" @author mjd 20081203

    
  }
  
  private void assertThrowsMalformedRangeException(String s) {
    try {
      RangeExpression re = new RangeExpression(s);
      re.buildCriteria("property");
    } catch (MalformedRangeExpression e) {
      // Okay!
      return;
    }
    fail();

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    assertThrowsMalformedRangeException("50 .. foo");
    assertThrowsMalformedRangeException("foo .. bar");
  }
  
  private void assertBoundsOK(String s, Integer low, Integer high) throws RangeExpression.MalformedRangeExpression {
    RangeExpression re = new RangeExpression();
    Bounds b = re.new Bounds(s);
    
    if (low == null) {
      assertFalse(b.hasLow()); 
    } else {

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    /* (non-Javadoc)
     * @see org.cipres.treebase.domain.DomainHome#findSomethingByRangeExpression(java.lang.Class, java.lang.String, java.lang.String)
     */
    public <T extends TBPersistable> Collection<T> findSomethingByRangeExpression(Class t, String attributeName,
      String rangeExpression) throws MalformedRangeExpression {
      RangeExpression re = new RangeExpression(rangeExpression);
      Criteria criteria = getSession().createCriteria(t);
//      criteria.createAlias(attributeName, "alias");
      criteria.add(re.getCriteria(attributeName));
      Collection<T> results = criteria.list();
        return results;
    }

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Related Classes of org.cipres.treebase.RangeExpression

org.cipres.treebase.dao.AbstractDAO

org.cipres.treebase.RangeExpressionTest

org.hibernate.criterion.Criterion

org.hibernate.criterion.Disjunction

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