org.jooq.impl.Left Maven / Gradle / Ivy
/**
* Copyright (c) 2009-2015, Data Geekery GmbH (http://www.datageekery.com)
* All rights reserved.
*
* 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.impl;
import static org.jooq.impl.DSL.field;
import static org.jooq.impl.DSL.inline;
import org.jooq.Configuration;
import org.jooq.Field;
import org.jooq.QueryPart;
/**
* @author Lukas Eder
*/
class Left extends AbstractFunction {
/**
* Generated UID
*/
private static final long serialVersionUID = 2200760781944082146L;
private Field field;
private Field length;
Left(Field field, Field length) {
super("left", field.getDataType());
this.field = field;
this.length = length;
}
@Override
final QueryPart getFunction0(Configuration configuration) {
switch (configuration.family()) {
/* [pro] xx
xxxx xxxxxxx
xx [/pro] */
case DERBY:
case SQLITE:
return DSL.substring(field, inline(1), length);
/* [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("{left}({0}, {1})", field, length);
}
}
}