Examples with EMPTY_FIELD org.jooq.impl.Tools.EMPTY_FIELD used on opensource projects

Example 6 with EMPTY_FIELD

use of org.jooq.impl.Tools.EMPTY_FIELD in project jOOQ by jOOQ.

the class DefaultParseContext method parseInsert.

private final Query parseInsert(WithImpl with, boolean parseResultQuery) {
    scopeStart();
    parseKeyword("INSERT", "INS");
    parseKeywordIf("INTO");
    Table<?> table = parseTableNameIf();
    if (table == null)
        table = table(parseSelect());
    Name alias;
    if (parseKeywordIf("AS"))
        table = table.as(parseIdentifier());
    else if (!peekKeyword("DEFAULT VALUES", "SEL", "SELECT", "SET", "VALUES") && (alias = parseIdentifierIf()) != null)
        table = table.as(alias);
    scope(table);
    InsertSetStep<?> s1 = (with == null ? dsl.insertInto(table) : with.insertInto(table));
    Field<?>[] fields = null;
    if (!peekSelectOrWith(true) && parseIf('(') && !parseIf(')')) {
        fields = parseList(',', c -> parseField()).toArray(EMPTY_FIELD);
        parse(')');
    }
    InsertOnDuplicateStep<?> onDuplicate;
    InsertReturningStep<?> returning;
    try {
        // [#11821] The Teradata INSERT INTO t (1, 2) syntax can be recognised:
        // When there are non-references fields
        boolean hasExpressions = anyMatch(fields, f -> !(f instanceof TableField));
        if (hasExpressions || parseKeywordIf("VALUES")) {
            List<List<Field<?>>> allValues = new ArrayList<>();
            if (hasExpressions) {
                allValues.add(asList(fields));
                fields = null;
            }
            valuesLoop: do {
                if (hasExpressions && !parseIf(','))
                    break valuesLoop;
                parse('(');
                // [#6936] MySQL treats an empty VALUES() clause as the same thing as the standard DEFAULT VALUES
                if (fields == null && parseIf(')'))
                    break valuesLoop;
                List<Field<?>> values = parseList(',', c -> c.parseKeywordIf("DEFAULT") ? default_() : c.parseField());
                if (fields != null && fields.length != values.size())
                    throw exception("Insert field size (" + fields.length + ") must match values size (" + values.size() + ")");
                allValues.add(values);
                parse(')');
            } while (parseIf(','));
            InsertValuesStepN<?> step2 = (fields != null) ? s1.columns(fields) : (InsertValuesStepN<?>) s1;
            for (List<Field<?>> values : allValues) step2 = step2.values(values);
            returning = onDuplicate = step2;
        } else if (parseKeywordIf("SET")) {
            Map<Field<?>, Object> map = parseSetClauseList();
            returning = onDuplicate = s1.set(map);
        } else if (peekSelectOrWith(true)) {
            // [#10954] These are moved into the INSERT .. SELECT clause handling. They should not be necessary here
            // either, but it seems we currently don't correctly implement nesting scopes?
            scopeEnd(null);
            scopeStart();
            Select<?> select = parseWithOrSelect();
            returning = onDuplicate = (fields == null) ? s1.select(select) : s1.columns(fields).select(select);
        } else if (parseKeywordIf("DEFAULT VALUES")) {
            if (fields != null)
                throw notImplemented("DEFAULT VALUES without INSERT field list");
            else
                returning = onDuplicate = s1.defaultValues();
        } else
            throw expected("DEFAULT VALUES", "WITH", "SELECT", "SET", "VALUES");
        if (parseKeywordIf("ON")) {
            if (parseKeywordIf("DUPLICATE KEY UPDATE")) {
                parseKeywordIf("SET");
                InsertOnConflictWhereStep<?> where = onDuplicate.onDuplicateKeyUpdate().set(parseSetClauseList());
                if (parseKeywordIf("WHERE"))
                    returning = where.where(parseCondition());
                else
                    returning = where;
            } else if (parseKeywordIf("DUPLICATE KEY IGNORE")) {
                returning = onDuplicate.onDuplicateKeyIgnore();
            } else if (parseKeywordIf("CONFLICT")) {
                InsertOnConflictDoUpdateStep<?> doUpdate;
                if (parseKeywordIf("ON CONSTRAINT")) {
                    doUpdate = onDuplicate.onConflictOnConstraint(parseName());
                } else if (parseIf('(')) {
                    InsertOnConflictWhereIndexPredicateStep<?> where = onDuplicate.onConflict(parseList(',', c -> parseFieldName()));
                    parse(')');
                    doUpdate = parseKeywordIf("WHERE") ? where.where(parseCondition()) : where;
                } else {
                    doUpdate = onDuplicate.onConflict();
                }
                parseKeyword("DO");
                if (parseKeywordIf("NOTHING")) {
                    returning = doUpdate.doNothing();
                } else if (parseKeywordIf("UPDATE SET")) {
                    InsertOnConflictWhereStep<?> where = doUpdate.doUpdate().set(parseSetClauseList());
                    if (parseKeywordIf("WHERE"))
                        returning = where.where(parseCondition());
                    else
                        returning = where;
                } else
                    throw expected("NOTHING", "UPDATE");
            } else
                throw expected("CONFLICT", "DUPLICATE");
        }
        return (parseResultQuery ? parseKeyword("RETURNING") : parseKeywordIf("RETURNING")) ? returning.returning(parseSelectList()) : returning;
    } finally {
        scopeEnd(((InsertImpl) s1).getDelegate());
    }
}