107 lines
2.4 KiB
Java
107 lines
2.4 KiB
Java
/*
|
|
* 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.inline;
|
|
import static org.jooq.impl.DSL.not;
|
|
|
|
import org.jooq.Condition;
|
|
import org.jooq.Configuration;
|
|
import org.jooq.QueryPart;
|
|
|
|
/**
|
|
* @author Lukas Eder
|
|
*/
|
|
final class ConditionAsField extends AbstractFunction<Boolean> {
|
|
|
|
/**
|
|
* Generated UID
|
|
*/
|
|
private static final long serialVersionUID = -5921673852489483721L;
|
|
final Condition condition;
|
|
|
|
ConditionAsField(Condition condition) {
|
|
super(condition.toString(), SQLDataType.BOOLEAN);
|
|
|
|
this.condition = condition;
|
|
}
|
|
|
|
@Override
|
|
final QueryPart getFunction0(Configuration configuration) {
|
|
switch (configuration.family()) {
|
|
|
|
// Some databases don't accept predicates where column expressions
|
|
// are expected.
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
case CUBRID:
|
|
case FIREBIRD:
|
|
|
|
// [#3206] Correct implementation of three-valued logic is important here
|
|
return DSL.when(condition, inline(true))
|
|
.when(not(condition), inline(false))
|
|
.otherwise(inline((Boolean) null));
|
|
|
|
// These databases can inline predicates in column expression contexts
|
|
case DERBY:
|
|
case H2:
|
|
case HSQLDB:
|
|
case MARIADB:
|
|
case MYSQL:
|
|
case POSTGRES:
|
|
case SQLITE:
|
|
|
|
|
|
|
|
|
|
|
|
|
|
// The default, for new dialects
|
|
default:
|
|
return DSL.sql("({0})", condition);
|
|
}
|
|
}
|
|
}
|