org.jooq.AggregateFunction Maven / Gradle / Ivy
/**
* Copyright (c) 2009-2014, Data Geekery GmbH (http://www.datageekery.com)
* All rights reserved.
*
* This work is dual-licensed
* - under the Apache Software License 2.0 (the "ASL")
* - under the jOOQ License and Maintenance Agreement (the "jOOQ License")
* =============================================================================
* You may choose which license applies to you:
*
* - If you're using this work with Open Source databases, you may choose
* either ASL or jOOQ License.
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* choose jOOQ License
*
* For more information, please visit http://www.jooq.org/licenses
*
* Apache Software License 2.0:
* -----------------------------------------------------------------------------
* 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
*
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package org.jooq;
import static org.jooq.SQLDialect.CUBRID;
// ...
import static org.jooq.SQLDialect.H2;
// ...
// ...
import static org.jooq.SQLDialect.POSTGRES;
// ...
// ...
import java.util.Collection;
/**
* An aggregate function is a special field that is usually used in a
* GROUP BY context. It is also the base for window function
* construction.
*
* @author Lukas Eder
*/
public interface AggregateFunction extends Field, WindowOverStep {
/**
* Turn this aggregate function into a window function.
*
* An example:
* MAX(id) OVER (PARTITION BY 1)
*
* Window functions are supported in CUBRID, DB2, Postgres, Oracle, SQL
* Server and Sybase.
*/
@Override
@Support({ CUBRID, H2, POSTGRES })
WindowPartitionByStep
* An example:
* Window functions are supported in CUBRID, DB2, Postgres, Oracle, SQL
* Server and Sybase. If the
* An example:
* Window functions are supported in CUBRID, DB2, Postgres, Oracle, SQL
* Server and Sybase. If the
* An example:
* Window functions are supported in CUBRID, DB2, Postgres, Oracle, SQL
* Server and Sybase.
*/
@Override
@Support({ CUBRID, POSTGRES })
WindowFinalStep
* An example:
* Window functions are supported in CUBRID, DB2, Postgres, Oracle, SQL
* Server and Sybase. If the
* MAX(id) OVER my_window
* WINDOW clause is not supported
* (see {@link SelectWindowStep#window(WindowDefinition...)}, then
* referenced windows will be inlined.
*/
@Override
@Support({ CUBRID, POSTGRES })
WindowFinalStep
* MAX(id) OVER my_window
* WINDOW clause is not supported
* (see {@link SelectWindowStep#window(WindowDefinition...)}, then
* referenced windows will be inlined.
*/
@Override
@Support({ CUBRID, POSTGRES })
WindowFinalStep
* MAX(id) OVER (PARTITION BY 1)
*
* MAX(id) OVER my_window
* WINDOW clause is not supported
* (see {@link SelectWindowStep#window(WindowDefinition...)}, then
* referenced windows will be inlined.
*/
@Override
@Support({ CUBRID, POSTGRES })
WindowFinalStep