/*
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
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 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 * Other licenses:
 * -----------------------------------------------------------------------------
 * Commercial licenses for this work are available. These replace the above
 * ASL 2.0 and offer limited warranties, support, maintenance, and commercial
 * database integrations.
 *
 * For more information, please visit: http://www.jooq.org/licenses
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package org.jooq.impl;

import static org.jooq.Clause.CONDITION;
import static org.jooq.Clause.CONDITION_IN;
import static org.jooq.Clause.CONDITION_NOT_IN;
import static org.jooq.Comparator.EQUALS;
import static org.jooq.Comparator.IN;
import static org.jooq.Comparator.NOT_IN;
// ...
// ...
// ...
import static org.jooq.SQLDialect.DERBY;
import static org.jooq.SQLDialect.FIREBIRD;
// ...
// ...
// ...
// ...
import static org.jooq.SQLDialect.SQLITE;
// ...
// ...
// ...
import static org.jooq.impl.DSL.falseCondition;
import static org.jooq.impl.DSL.trueCondition;
import static org.jooq.impl.InCondition.padded;

import java.util.ArrayList;
import java.util.List;
import java.util.Set;

import org.jooq.Clause;
import org.jooq.Condition;
import org.jooq.Configuration;
import org.jooq.Context;
import org.jooq.QueryPartInternal;
import org.jooq.Row;
import org.jooq.SQLDialect;

Author:Lukas Eder
/** * @author Lukas Eder */
final class RowInCondition extends AbstractCondition {
Generated UID
/** * Generated UID */
private static final long serialVersionUID = -1806139685201770706L; private static final Clause[] CLAUSES_IN = { CONDITION, CONDITION_IN }; private static final Clause[] CLAUSES_IN_NOT = { CONDITION, CONDITION_NOT_IN }; // Currently not yet supported in SQLite: // https://www.sqlite.org/rowvalue.html private static final Set<SQLDialect> EMULATE_IN = SQLDialect.supportedBy(DERBY, FIREBIRD, SQLITE); private final Row left; private final QueryPartList<? extends Row> right; private final boolean not; RowInCondition(Row left, QueryPartList<? extends Row> right, boolean not) { this.left = left; this.right = right; this.not = not; } @Override public final void accept(Context<?> ctx) { ctx.visit(delegate(ctx.configuration())); } @Override // Avoid AbstractCondition implementation public final Clause[] clauses(Context<?> ctx) { return null; } private final QueryPartInternal delegate(Configuration configuration) { if (EMULATE_IN.contains(configuration.dialect())) { List<Condition> conditions = new ArrayList<>(right.size()); for (Row row : right) conditions.add(new RowCondition(left, row, EQUALS)); Condition result = DSL.or(conditions); if (not) result = result.not(); return (QueryPartInternal) result; } else { return new Native(); } } private class Native extends AbstractCondition {
Generated UID
/** * Generated UID */
private static final long serialVersionUID = -7019193803316281371L; @Override public final void accept(Context<?> ctx) { if (right.size() == 0) { if (not) ctx.visit(trueCondition()); else ctx.visit(falseCondition()); } else { ctx.visit(left) .sql(' ') .visit((not ? NOT_IN : IN).toKeyword()) .sql(" (").visit(new QueryPartListView<>(padded(ctx, right))).sql(')'); } } @Override public final Clause[] clauses(Context<?> ctx) { return not ? CLAUSES_IN_NOT : CLAUSES_IN; } } }