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package com.speedment.runtime.join.builder;

import com.speedment.common.function.TriFunction;
import com.speedment.common.tuple.Tuple;
import com.speedment.common.tuple.TuplesOfNullables;
import com.speedment.common.tuple.nullable.Tuple3OfNullables;
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.trait.HasDefaultBuild;
import com.speedment.runtime.join.trait.HasJoins;
import com.speedment.runtime.join.trait.HasOnPredicates;
import com.speedment.runtime.join.trait.HasWhere;

/**
 * Join Builder stage used when only 3 tables has been specified so far.
 *
 * @param   the first entity type
 * @param   the second entity type
 * @param   the third entity type
 *
 * @author Per Minborg
 * @author Emil Forslund
 * @since  3.1.1
 */
public interface JoinBuilder3
    extends HasJoins, JoinBuilder4>,
            HasWhere>,
            HasDefaultBuild> {

    @Override
     AfterJoin innerJoinOn(HasComparableOperators joinedField);

    @Override
     AfterJoin leftJoinOn(HasComparableOperators joinedField);

    @Override
     AfterJoin rightJoinOn(HasComparableOperators joinedField);

//                @Override
//                 AfterJoin fullOuterJoinOn(HasComparableOperators joinedField);

    @Override
     JoinBuilder4 crossJoin(TableIdentifier joinedTable);

    @Override
    default Join> build() {
        return build(TuplesOfNullables::ofNullables);
    }

    /**
     * Creates and returns a new Join object where elements in the Join
     * object's stream method is created using the provided {@code
     * constructor}.
     *
     * @param          the type of element in the Join object's stream
     *                    method.
     * @param constructor to use to create stream elements.
     * @return a new Join object where elements in the Join object's stream
     *     method is of a default {@link Tuple} type
     *
     * @throws NullPointerException if the provided {@code constructor } is
     *                              {@code null}
     */
     Join build(TriFunction constructor);

    interface AfterJoin
    extends HasOnPredicates> {}
}