[ http://issues.apache.org/jira/browse/JDO-164?page=all ]
Michael Watzek updated JDO-164:
-------------------------------
Attachment: JDO-164.patch2
The second patch implements the comments above.
Furthermore, the patch implements the comments in JDO-216 concerning the
expected result of JDO2 query test cases .
> Implement new JDO 2 query tests cases concerning result handling.
> -----------------------------------------------------------------
>
> Key: JDO-164
> URL: http://issues.apache.org/jira/browse/JDO-164
> Project: JDO
> Type: New Feature
> Components: tck20
> Reporter: Michael Watzek
> Assignee: Michael Watzek
> Attachments: JDO-164.patch, JDO-164.patch2
>
> We need 14 new test classes, one for each of the following assertions:
> - A14.6.9-1: If distinct is specified, the query result does not include any
> duplicates. If the result parameter specifies more than one result
> expression, duplicates are those with matching values for each result
> expression.
> - A14.6.9-2: Queries against an extent always consider only distinct
> candidate instances, regardless of whether distinct is specified. Queries
> against a collection might contain duplicate candidate instances; the
> distinct keyword removes duplicates from the candidate collection in this
> case.
> - A14.6.9-3: If a variable or a field of a variable is included in the
> result, either directly or via navigation through the variable, then the
> semantics of the contains clause that include the variable change. In this
> case, all values of the variable that satisfy the filter are included in the
> result.
> - A14.6.9-4: If any result is a navigational expression, and a non-terminal
> field or variable has a null value for a particular set of conditions (the
> result calculation would throw NullPointerException), then the result is null
> for that result expression.
> - A14.6.9-5: The result expressions include: ... The result expression can be
> explicitly cast using the (cast) operator.
> - A14.6.9-6: Count returns Long. Sum returns Long for integral types and the
> field's type for other Number types (BigDecimal, BigInteger, Float, and
> Double). Sum is invalid if applied to non-Number types. Avg, min, and max
> return the type of the expression.
> - A14.6.9-7: If the returned value from a query specifying a result is null,
> this indicates that the expression specified as the result was null.
> - A14.6.9-8: If not specified, the result defaults to distinct this as C.
> - A14.6.10-1: When grouping is specified, each result expression must be one
> of: an expression contained in the grouping expression; or, an aggregate
> expression evaluated once per group. The query groups all elements where all
> expressions specified in setGrouping have the same values. The query result
> consists of one element per group.
> - A14.6.10-2: When having is specified, the having expression consists of
> arithmetic and boolean expressions containing aggregate expressions.
> - A14.6.11-1: When the value of the Unique flag is true, then the result of a
> query is a single value, with null used to indicate that none of the
> instances in the candidates satisfied the filter. If more than one instance
> satisfies the filter, and the range is not limited to one result, then
> execute throws a JDOUserException.
> - A14.6.11-2: The default Unique setting is true for aggregate results
> without a grouping expression, and false otherwise.
> - A14.6.12-1:The result class may be one of the java.lang classes Character,
> Boolea, Byte, Short, Integer, Long, Float, Double, String, or Object[]; or
> one of the java.math classes BigInteger or BigDecimal; or the java.util class
> Date; or the java.util interface Map; or one of the java.sql classes Date,
> Time, or Timestamp; or a user-defined class.
> - A14.6.12-2: Table 6: Shape of Result (C is the candidate class).
> Details can be found on Wiki page
> http://wiki.apache.org/jdo/QueryTests#ResultHandling.
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