org.jooq.impl.Right 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.
* - If you're using this work with at least one commercial database, you must
* 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
*
* 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.
*
* jOOQ License and Maintenance Agreement:
* -----------------------------------------------------------------------------
* Data Geekery grants the Customer the non-exclusive, timely limited and
* non-transferable license to install and use the Software under the terms of
* the jOOQ License and Maintenance Agreement.
*
* This library is distributed with a LIMITED WARRANTY. See the jOOQ License
* and Maintenance Agreement for more details: http://www.jooq.org/licensing
*/
package org.jooq.impl;
import static org.jooq.impl.DSL.field;
import static org.jooq.impl.DSL.one;
import org.jooq.Configuration;
import org.jooq.Field;
import org.jooq.QueryPart;
/**
* @author Lukas Eder
*/
class Right extends AbstractFunction {
/**
* Generated UID
*/
private static final long serialVersionUID = 2200760781944082146L;
private Field field;
private Field length;
Right(Field field, Field length) {
super("right", field.getDataType());
this.field = field;
this.length = length;
}
@Override
final QueryPart getFunction0(Configuration configuration) {
switch (configuration.dialect().family()) {
case DERBY:
return DSL.substring(field, field.length().add(one()).sub(length));
/* [pro] xx
xxxx xxxxxxx
xx [/pro] */
case SQLITE:
return DSL.substring(field, length.neg());
/* [pro] xx
xxxx xxxx
xxxx xxxxxxx
xxxx xxxxxxxxxx
xxxx xxxxxxx
xx [/pro] */
case CUBRID:
case FIREBIRD:
case H2:
case HSQLDB:
case MARIADB:
case MYSQL:
case POSTGRES:
default:
return field("{right}({0}, {1})", field, length);
}
}
}