org.jooq.impl.Every 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
*
*
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*/
package org.jooq.impl;
import static org.jooq.impl.DSL.inline;
import static org.jooq.impl.DSL.one;
import static org.jooq.impl.DSL.zero;
import org.jooq.Condition;
import org.jooq.Context;
import org.jooq.Field;
/**
* @author Lukas Eder
*/
class Every extends Function {
/**
* Generated UID
*/
private static final long serialVersionUID = 7292087943334025737L;
private final Condition condition;
Every(Condition condition) {
super("every", SQLDataType.BOOLEAN, DSL.field(condition));
this.condition = condition;
}
@SuppressWarnings("serial")
@Override
public final void accept(Context ctx) {
switch (ctx.family()) {
case POSTGRES:
super.accept(ctx);
break;
default:
final Field sum = DSL.field("{0}", Integer.class, new CustomQueryPart() {
@Override
public void accept(Context c) {
c.visit(DSL.sum(DSL.when(condition, zero()).otherwise(one())));
toSQLOverClause(c);
}
});
ctx.visit(DSL.when(sum.eq(zero()), inline(true)).otherwise(inline(false)));
break;
}
}
}