[eclipselink-dev] SVN commit trunk: Bug#305187 JPQL enhancements

[eclipselink-dev] SVN commit trunk: Bug#305187 JPQL enhancements

SVN commit trunk: Bug#305187 JPQL enhancements

Also bugs # 315087, 350843, 372894,

Adds several enhancements to JPQL support on the Hermes parser.

Adds support for FUNCTION, OPERATOR, SQL, COLUMN.

Code Review: Pascal (pending)

Changes:

- AbstractReadAllQueryVisitor, only define ASC ordering when set

- Added support for OperatorExpression, SQLExpression, ColumnExpression to EclipseLink 2.4 grammar and parser.

- Added support for FunctionExpression to JPA 2.1 grammar and parser.

- Added operator() and sql() _expression_ operations.

- Added map of ExpressionOperator names.

- Fix to Function/RelationExpression to check for join table and use correct foreign key order when optimizing 1-1 joins.

- Changed logging category for “ejb_or_metadata” to be just “metadata”, “jpa_metamodel” to be just “metamodel”.

- Added tests for new JPQL operators, and Criteria API.

- AbstractGrammarValidator, added generic missing right/left parenthesis warnings.

- CriteriaBuilderImpl, add support for fromExpression(), toExpression() API.

- Added JpaCriteriaBuilder interface to expose fromExpression(), toExpression! () API.