Examples with SQLDialect org.jooq.SQLDialect used on opensource projects

Example 16 with SQLDialect

use of org.jooq.SQLDialect in project jOOQ by jOOQ.

the class SelectQueryImpl method accept.

@Override
public final void accept(Context<?> context) {
    SQLDialect dialect = context.dialect();
    SQLDialect family = context.family();
    // [#2791] TODO: Instead of explicitly manipulating these data() objects, future versions
    // of jOOQ should implement a push / pop semantics to clearly delimit such scope.
    Object renderTrailingLimit = context.data(DATA_RENDER_TRAILING_LIMIT_IF_APPLICABLE);
    Object localDataMap = context.data(DATA_LOCALLY_SCOPED_DATA_MAP);
    try {
        if (renderTrailingLimit != null)
            context.data().remove(DATA_RENDER_TRAILING_LIMIT_IF_APPLICABLE);
        context.data(DATA_LOCALLY_SCOPED_DATA_MAP, new HashMap<Object, Object>());
        if (into != null && context.data(DATA_OMIT_INTO_CLAUSE) == null && asList(CUBRID, DERBY, FIREBIRD, H2, HSQLDB, MARIADB, MYSQL, POSTGRES, SQLITE).contains(family)) {
            context.data(DATA_OMIT_INTO_CLAUSE, true);
            context.visit(DSL.createTable(into).as(this));
            context.data().remove(DATA_OMIT_INTO_CLAUSE);
            return;
        }
        if (with != null)
            context.visit(with).formatSeparator();
        pushWindow(context);
        Boolean wrapDerivedTables = (Boolean) context.data(DATA_WRAP_DERIVED_TABLES_IN_PARENTHESES);
        if (TRUE.equals(wrapDerivedTables)) {
            context.sql('(').formatIndentStart().formatNewLine().data(DATA_WRAP_DERIVED_TABLES_IN_PARENTHESES, null);
        }
        switch(dialect) {
            // By default, render the dialect's limit clause
            default:
                {
                    toSQLReferenceLimitDefault(context);
                    break;
                }
        }
        // [#1296] FOR UPDATE is emulated in some dialects using ResultSet.CONCUR_UPDATABLE
        if (forUpdate && !asList(CUBRID).contains(family)) {
            context.formatSeparator().keyword("for update");
            if (!forUpdateOf.isEmpty()) {
                // [#4151] Some databases don't allow for qualifying column
                // names here. Copy also to TableList
                boolean unqualified = asList(DERBY, FIREBIRD, H2, HSQLDB).contains(context.family());
                boolean qualify = context.qualify();
                if (unqualified)
                    context.qualify(false);
                context.sql(' ').keyword("of").sql(' ').visit(forUpdateOf);
                if (unqualified)
                    context.qualify(qualify);
            } else if (!forUpdateOfTables.isEmpty()) {
                context.sql(' ').keyword("of").sql(' ');
                switch(family) {
                    case DERBY:
                        {
                            forUpdateOfTables.toSQLFields(context);
                            break;
                        }
                    // Render the OF [table-names] clause
                    default:
                        Tools.tableNames(context, forUpdateOfTables);
                        break;
                }
            }
            // FOR UPDATE semantics, we should use FOR UPDATE WITH LOCK
            if (family == FIREBIRD) {
                context.sql(' ').keyword("with lock");
            }
            if (forUpdateMode != null) {
                context.sql(' ');
                context.keyword(forUpdateMode.toSQL());
                if (forUpdateMode == ForUpdateMode.WAIT) {
                    context.sql(' ');
                    context.sql(forUpdateWait);
                }
            }
        } else if (forShare) {
            switch(dialect) {
                // MySQL has a non-standard implementation for the "FOR SHARE" clause
                case MARIADB:
                case MYSQL:
                    context.formatSeparator().keyword("lock in share mode");
                    break;
                // Postgres is known to implement the "FOR SHARE" clause like this
                default:
                    context.formatSeparator().keyword("for share");
                    break;
            }
        }
        // end-of-query clauses are appended to the end of a query
        if (!StringUtils.isBlank(option)) {
            context.formatSeparator().sql(option);
        }
        if (TRUE.equals(wrapDerivedTables)) {
            context.formatIndentEnd().formatNewLine().sql(')').data(DATA_WRAP_DERIVED_TABLES_IN_PARENTHESES, true);
        }
    } finally {
        context.data(DATA_LOCALLY_SCOPED_DATA_MAP, localDataMap);
        if (renderTrailingLimit != null)
            context.data(DATA_RENDER_TRAILING_LIMIT_IF_APPLICABLE, renderTrailingLimit);
    }
}

Example 17 with SQLDialect

use of org.jooq.SQLDialect in project jOOQ by jOOQ.

the class RowSubqueryCondition method delegate.

private final QueryPartInternal delegate(Context<?> ctx) {
    final Configuration configuration = ctx.configuration();
    final RenderContext render = ctx instanceof RenderContext ? (RenderContext) ctx : null;
    SQLDialect family = configuration.dialect().family();
    // [#3505] TODO: Emulate this where it is not supported
    if (rightQuantified != null) {
        return new Native();
    } else // predicates with row value expressions and subqueries:
    if (asList(H2, HSQLDB, MARIADB, MYSQL, POSTGRES).contains(family)) {
        return new Native();
    } else // [#2395] All other configurations have to be emulated
    {
        String table = render == null ? "t" : render.nextAlias();
        List<String> names = new ArrayList<String>();
        for (int i = 0; i < left.size(); i++) {
            names.add(table + "_" + i);
        }
        Field<?>[] fields = new Field[names.size()];
        for (int i = 0; i < fields.length; i++) {
            fields[i] = field(name(table, names.get(i)));
        }
        Condition condition;
        switch(comparator) {
            case GREATER:
                condition = ((RowN) left).gt(row(fields));
                break;
            case GREATER_OR_EQUAL:
                condition = ((RowN) left).ge(row(fields));
                break;
            case LESS:
                condition = ((RowN) left).lt(row(fields));
                break;
            case LESS_OR_EQUAL:
                condition = ((RowN) left).le(row(fields));
                break;
            case IN:
            case EQUALS:
            case NOT_IN:
            case NOT_EQUALS:
            default:
                condition = ((RowN) left).eq(row(fields));
                break;
        }
        Select<Record> subselect = select().from(right.asTable(table, names.toArray(EMPTY_STRING))).where(condition);
        switch(comparator) {
            case NOT_IN:
            case NOT_EQUALS:
                return (QueryPartInternal) notExists(subselect);
            default:
                return (QueryPartInternal) exists(subselect);
        }
    }
}

Example 18 with SQLDialect

use of org.jooq.SQLDialect in project OpenAttestation by OpenAttestation.

the class TagJdbi method jooq.

/**
     * CODE QUALITY: All usage of this method should be in the following form:
     * <pre>
     * try(JooqContainer jc = TagJdbi.jooq()) {
     * DSLContext jooq = jc.getDslContext();
     * // code
     * }
     * </pre>
     *
     * This ensures the jooq database connection is automatically released
     * at the end of the block (either closed or returned to the pool)
     * 
     * @return
     * @throws SQLException
     * @throws IOException
     */
public static JooqContainer jooq() throws SQLException, IOException {
    // omits the schema name from generated sql ; when we connect to the database we already specify a schema so this settings avoid 
    // redundancy in the sql and allows the administrator to change the database name without breaking the application
    Settings settings = new Settings().withRenderSchema(false).withRenderNameStyle(RenderNameStyle.LOWER);
    SQLDialect dbDialect = getSqlDialect();
    // throws SQLException; Note that the DSLContext doesn't close the connection. We'll have to do that ourselves.
    Connection connection = TagJdbi.getDataSource().getConnection();
    DSLContext jooq = DSL.using(connection, dbDialect, settings);
    return new JooqContainer(jooq, connection);
}