/* * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * 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 * * * * * * * * * * * * * */ package org.jooq; import java.util.Collection; import org.jooq.exception.DataAccessException; import org.jooq.impl.DSL; /** * This type is used for the {@link Select}'s DSL API when selecting generic * {@link Record} types. * <p> * Example: <code><pre> * -- get all authors' first and last names, and the number * -- of books they've written in German, if they have written * -- more than five books in German in the last three years * -- (from 2011), and sort those authors by last names * -- limiting results to the second and third row * * SELECT T_AUTHOR.FIRST_NAME, T_AUTHOR.LAST_NAME, COUNT(*) * FROM T_AUTHOR * JOIN T_BOOK ON T_AUTHOR.ID = T_BOOK.AUTHOR_ID * WHERE T_BOOK.LANGUAGE = 'DE' * AND T_BOOK.PUBLISHED > '2008-01-01' * GROUP BY T_AUTHOR.FIRST_NAME, T_AUTHOR.LAST_NAME * HAVING COUNT(*) > 5 * ORDER BY T_AUTHOR.LAST_NAME ASC NULLS FIRST * LIMIT 2 * OFFSET 1 * FOR UPDATE * OF FIRST_NAME, LAST_NAME * NO WAIT * </pre></code> Its equivalent in jOOQ <code><pre> * create.select(TAuthor.FIRST_NAME, TAuthor.LAST_NAME, create.count()) * .from(T_AUTHOR) * .join(T_BOOK).on(TBook.AUTHOR_ID.equal(TAuthor.ID)) * .where(TBook.LANGUAGE.equal("DE")) * .and(TBook.PUBLISHED.greaterThan(parseDate('2008-01-01'))) * .groupBy(TAuthor.FIRST_NAME, TAuthor.LAST_NAME) * .having(create.count().greaterThan(5)) * .orderBy(TAuthor.LAST_NAME.asc().nullsFirst()) * .limit(2) * .offset(1) * .forUpdate() * .of(TAuthor.FIRST_NAME, TAuthor.LAST_NAME) * .noWait(); * </pre></code> Refer to the manual for more details * * @author Lukas Eder */ public interface SelectOnStep<R extends Record> { /** * Add an <code>ON</code> clause to the previous <code>JOIN</code>, * connecting them with each other with {@link Operator#AND}. */ @Support SelectOnConditionStep<R> on(Condition... conditions); /** * Add an <code>ON</code> clause to the previous <code>JOIN</code>. */ @Support SelectOnConditionStep<R> on(Field<Boolean> condition); /** * Add an <code>ON</code> clause to the previous <code>JOIN</code>. * * @deprecated - 3.8.0 - [#4763] - Use {@link #on(Condition...)} or * {@link #on(Field)} instead. Due to ambiguity between * calling this method using {@link Field#equals(Object)} * argument, vs. calling the other method via a * {@link Field#equal(Object)} argument, this method will be * removed in the future. */ @Deprecated @Support SelectOnConditionStep<R> on(Boolean condition); /** * Add an <code>ON</code> clause to the previous <code>JOIN</code>. * <p> * <b>NOTE</b>: When inserting plain SQL into jOOQ objects, you must * guarantee syntax integrity. You may also create the possibility of * malicious SQL injection. Be sure to properly use bind variables and/or * escape literals when concatenated into SQL clauses! * * @see DSL#condition(SQL) * @see SQL */ @Support @PlainSQL SelectOnConditionStep<R> on(SQL sql); /** * Add an <code>ON</code> clause to the previous <code>JOIN</code>. * <p> * <b>NOTE</b>: When inserting plain SQL into jOOQ objects, you must * guarantee syntax integrity. You may also create the possibility of * malicious SQL injection. Be sure to properly use bind variables and/or * escape literals when concatenated into SQL clauses! * * @see DSL#condition(String) * @see SQL */ @Support @PlainSQL SelectOnConditionStep<R> on(String sql); /** * Add an <code>ON</code> clause to the previous <code>JOIN</code>. * <p> * <b>NOTE</b>: When inserting plain SQL into jOOQ objects, you must * guarantee syntax integrity. You may also create the possibility of * malicious SQL injection. Be sure to properly use bind variables and/or * escape literals when concatenated into SQL clauses! * * @see DSL#condition(String, Object...) * @see DSL#sql(String, Object...) * @see SQL */ @Support @PlainSQL SelectOnConditionStep<R> on(String sql, Object... bindings); /** * Add an <code>ON</code> clause to the previous <code>JOIN</code>. * <p> * <b>NOTE</b>: When inserting plain SQL into jOOQ objects, you must * guarantee syntax integrity. You may also create the possibility of * malicious SQL injection. Be sure to properly use bind variables and/or * escape literals when concatenated into SQL clauses! * * @see DSL#condition(String, QueryPart...) * @see DSL#sql(String, QueryPart...) * @see SQL */ @Support @PlainSQL SelectOnConditionStep<R> on(String sql, QueryPart... parts); /** * Join the previous table on a non-ambiguous foreign key relationship * between the two joined tables. * <p> * See {@link TableOnStep#onKey(ForeignKey)} for examples. * * @see TableOnStep#onKey(ForeignKey) * @throws DataAccessException If there is no non-ambiguous key definition * known to jOOQ */ @Support SelectJoinStep<R> onKey() throws DataAccessException; /** * Join the previous table on a non-ambiguous foreign key relationship * between the two joined tables. * <p> * See {@link TableOnStep#onKey(ForeignKey)} for examples. * * @see TableOnStep#onKey(ForeignKey) * @throws DataAccessException If there is no non-ambiguous key definition * known to jOOQ */ @Support SelectJoinStep<R> onKey(TableField<?, ?>... keyFields) throws DataAccessException; /** * Join the table on a non-ambiguous foreign key relationship between the * two joined tables. * <p> * See {@link TableOnStep#onKey(ForeignKey)} for examples. * * @see TableOnStep#onKey(ForeignKey) */ @Support SelectJoinStep<R> onKey(ForeignKey<?, ?> key); /** * Join the previous table with the <code>USING(column [, column...])</code> * syntax. * <p> * If this is not supported by your RDBMS, then jOOQ will try to emulate * this behaviour using the information provided in this query. */ @Support SelectJoinStep<R> using(Field<?>... fields); /** * Join the previous table with the <code>USING(column [, column...])</code> * syntax. * <p> * If this is not supported by your RDBMS, then jOOQ will try to emulate * this behaviour using the information provided in this query. */ @Support SelectJoinStep<R> using(Collection<? extends Field<?>> fields); }