Ejemplo n.º 1
0
 @Override
 public final Object getValue(Tuple tuple, PDataType type, ImmutableBytesWritable ptr)
     throws SQLException {
   try {
     Expression expression = getExpression();
     if (!expression.evaluate(tuple, ptr)) {
       return null;
     }
     if (ptr.getLength() == 0) {
       return null;
     }
     return type.toObject(
         ptr,
         expression.getDataType(),
         expression.getSortOrder(),
         expression.getMaxLength(),
         expression.getScale());
   } catch (RuntimeException e) {
     // FIXME: Expression.evaluate does not throw SQLException
     // so this will unwrap throws from that.
     if (e.getCause() instanceof SQLException) {
       throw (SQLException) e.getCause();
     }
     throw e;
   }
 }
 private void evaluateAndAssertResult(
     Expression expression, Object expectedResult, String context) {
   context = context == null ? "" : context;
   ImmutableBytesWritable ptr = new ImmutableBytesWritable();
   assertTrue(expression.evaluate(null, ptr));
   PDataType dataType = expression.getDataType();
   SortOrder sortOrder = expression.getSortOrder();
   Object result =
       dataType.toObject(ptr.get(), ptr.getOffset(), ptr.getLength(), dataType, sortOrder);
   assertEquals(context, expectedResult, result);
 }