Factory for queries and clauses

[Timo Westkämper]

For creation methods like the following a common factory pattern could be provided in all modules :

SQLDeleteClause delete(RelationalPath path) {
    return new SQLDeleteClause(
        getConnection(), getConfiguration(), path);
}

SQLQuery from(Expression from) {
    SQLQueryImpl query = new SQLQueryImpl(
        getConnection(), getConfiguration());
    query.from(from);
    return query;
}

SQLInsertClause insert(RelationalPath path) {
    return new SQLInsertClause(
        getConnection(), getConfiguration(), path);
}

SQLUpdateClause update(RelationalPath path) {
    return new SQLUpdateClause(
        getConnection(), getConfiguration(), path);
}

[Timo Westkämper (timo-westkamper)]

Added basic factory implementations for JPA, JDO and SQL

[Timo Westkämper (timo-westkamper)]

JPA:
HibernateQueryFactory
JPAQueryFactory

JDO:
JDOQueryFactory

SQL:
SQLQueryFactory

[Timo Westkämper (timo-westkamper)]

Released in 2.2.0-beta1