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

Example 6 with QueryPartInternal

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

the class AbstractContext method visit.

// ------------------------------------------------------------------------
// VisitListener API
// ------------------------------------------------------------------------
@Override
public final C visit(QueryPart part) {
    if (part != null) {
        // Issue start clause events
        // -----------------------------------------------------------------
        Clause[] clauses = Tools.isNotEmpty(visitListenersStart) ? clause(part) : null;
        if (clauses != null)
            for (int i = 0; i < clauses.length; i++) start(clauses[i]);
        // Perform the actual visiting, or recurse into the replacement
        // -----------------------------------------------------------------
        QueryPart replacement = start(part);
        if (replacement != null) {
            QueryPartInternal internal = (QueryPartInternal) scopeMapping(replacement);
            // We're declaring fields, but "part" does not declare fields
            if (declareFields() && !internal.declaresFields()) {
                boolean aliases = declareAliases();
                declareFields(false);
                visit0(internal);
                declareFields(true);
                declareAliases(aliases);
            } else // We're declaring tables, but "part" does not declare tables
            if (declareTables() && !internal.declaresTables()) {
                boolean aliases = declareAliases();
                declareTables(false);
                visit0(internal);
                declareTables(true);
                declareAliases(aliases);
            } else // We're declaring windows, but "part" does not declare windows
            if (declareWindows() && !internal.declaresWindows()) {
                declareWindows(false);
                visit0(internal);
                declareWindows(true);
            } else // We're declaring cte, but "part" does not declare cte
            if (declareCTE() && !internal.declaresCTE()) {
                declareCTE(false);
                visit0(internal);
                declareCTE(true);
            } else if (!castModeOverride && castMode() != CastMode.DEFAULT && !internal.generatesCast()) {
                CastMode previous = castMode();
                castMode(CastMode.DEFAULT);
                visit0(internal);
                castMode(previous);
            } else // We're not declaring, or "part" can declare
            {
                visit0(internal);
            }
        }
        end(replacement);
        // -----------------------------------------------------------------
        if (clauses != null)
            for (int i = clauses.length - 1; i >= 0; i--) end(clauses[i]);
    }
    return (C) this;
}