com.speedment.runtime.join.internal.component.join.JoinBuilder4Impl Maven / Gradle / Ivy

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/**
 *
 * Copyright (c) 2006-2018, Speedment, Inc. 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.
 */
package com.speedment.runtime.join.internal.component.join;

import com.speedment.common.function.QuadFunction;
import com.speedment.runtime.config.identifier.TableIdentifier;
import com.speedment.runtime.field.trait.HasComparableOperators;
import com.speedment.runtime.join.Join;
import com.speedment.runtime.join.builder.JoinBuilder4;
import com.speedment.runtime.join.builder.JoinBuilder5;
import com.speedment.runtime.join.stage.JoinType;
import com.speedment.runtime.join.stage.Stage;
import java.util.List;
import static java.util.Objects.requireNonNull;

/**
 *
 * @author Per Minborg
 */
final class JoinBuilder4Impl
    extends AbstractJoinBuilder>
    implements JoinBuilder4 {

    JoinBuilder4Impl(AbstractJoinBuilder previousStage, StageBean current) {
        super(previousStage, current);
    }

    @Override
    public  AfterJoin innerJoinOn(HasComparableOperators joinedField) {
        return new AfterJoinImpl<>(addStageBeanOf(JoinType.INNER_JOIN, joinedField));
    }

    @Override
    public  AfterJoin leftJoinOn(HasComparableOperators joinedField) {
        return new AfterJoinImpl<>(addStageBeanOf(JoinType.LEFT_JOIN, joinedField));
    }

    @Override
    public  AfterJoin rightJoinOn(HasComparableOperators joinedField) {
        return new AfterJoinImpl<>(addStageBeanOf(JoinType.RIGHT_JOIN, joinedField));
    }

//    @Override
//    public  AfterJoin fullOuterJoinOn(HasComparableOperators joinedField) {
//        return new AfterJoinImpl<>(addStageBeanOf(JoinType.FULL_OUTER_JOIN, joinedField));
//    }

    @Override
    public  JoinBuilder5 crossJoin(TableIdentifier joinedTable) {
        return new JoinBuilder5Impl<>(this, addStageBeanOf(joinedTable, JoinType.CROSS_JOIN));
    }

    private final class AfterJoinImpl
        extends BaseAfterJoin>
        implements AfterJoin {

        private AfterJoinImpl(StageBean stageBean) {
            super(JoinBuilder4Impl.this, stageBean, JoinBuilder5Impl::new);
        }

    }

    @Override
    @SuppressWarnings("unchecked")
    public  Join build(QuadFunction constructor) {
        requireNonNull(constructor);
//        assertFieldsAreInJoinTables();
        final List> stages = stages();
        return streamSuppler().createJoin(
            stages,
            constructor,
            (TableIdentifier) stages.get(0).identifier(),
            (TableIdentifier) stages.get(1).identifier(),
            (TableIdentifier) stages.get(2).identifier(),
            (TableIdentifier) stages.get(3).identifier()
        );
    }

}