org.jooq.impl.Neg Maven / Gradle / Ivy
/**
* Copyright (c) 2009-2016, 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
*
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*/
package org.jooq.impl;
import static java.util.Arrays.asList;
// ...
import static org.jooq.SQLDialect.FIREBIRD;
import static org.jooq.SQLDialect.H2;
import static org.jooq.SQLDialect.HSQLDB;
// ...
// ...
// ...
import static org.jooq.impl.ExpressionOperator.BIT_NOT;
import org.jooq.Context;
import org.jooq.Field;
import org.jooq.SQLDialect;
/**
* @author Lukas Eder
*/
final class Neg extends AbstractField {
/**
* Generated UID
*/
private static final long serialVersionUID = 7624782102883057433L;
private final ExpressionOperator operator;
private final Field field;
Neg(Field field, ExpressionOperator operator) {
super(operator.toSQL() + field.getName(), field.getDataType());
this.operator = operator;
this.field = field;
}
@Override
public final void accept(Context ctx) {
SQLDialect family = ctx.configuration().dialect().family();
if (operator == BIT_NOT && asList(H2, HSQLDB).contains(family)) {
ctx.sql("(0 - ")
.visit(field)
.sql(" - 1)");
}
else if (operator == BIT_NOT && family == FIREBIRD) {
ctx.keyword("bin_not(")
.visit(field)
.sql(')');
}
else {
ctx.sql(operator.toSQL())
.sql('(')
.visit(field)
.sql(')');
}
}
}