org.jooq.impl.TableComparison 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 org.jooq.impl.DSL.row;
import static org.jooq.impl.DSL.sql;
import org.jooq.Comparator;
import org.jooq.Context;
import org.jooq.Record;
import org.jooq.Table;
/**
* @author Lukas Eder
*/
final class TableComparison extends AbstractCondition {
/**
* Generated UID
*/
private static final long serialVersionUID = 7033304130029726093L;
private final Table lhs;
private final Table rhs;
private final Comparator comparator;
TableComparison(Table lhs, Table rhs, Comparator comparator) {
this.lhs = lhs;
this.rhs = rhs;
this.comparator = comparator;
}
@Override
public final void accept(Context ctx) {
switch (ctx.family()) {
case POSTGRES: {
ctx.visit(DSL.condition("{0} {1} {2}", lhs, sql(comparator.toSQL()), rhs));
break;
}
default: {
ctx.visit(row(lhs.fields()).compare(comparator, row(rhs.fields())));
break;
}
}
}
}