com.cadenzauk.siesta.grammar.select.InJoinExpectingOn Maven / Gradle / Ivy

Go to download
Show more of this group Show more artifacts with this name
Show all versions of siesta Show documentation
SIESTA Is an Easy SQL Typesafe API
There is a newer version: 0.8.1
/*
 * Copyright (c) 2017 Cadenza United Kingdom Limited
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */

package com.cadenzauk.siesta.grammar.select;

import com.cadenzauk.core.function.Function1;
import com.cadenzauk.core.function.FunctionOptional1;
import com.cadenzauk.siesta.Alias;
import com.cadenzauk.siesta.grammar.expression.BooleanExpression;
import com.cadenzauk.siesta.grammar.expression.ResolvedColumn;
import com.cadenzauk.siesta.grammar.expression.TypedExpression;
import com.cadenzauk.siesta.grammar.expression.UnresolvedColumn;
import com.cadenzauk.siesta.grammar.expression.ExpressionBuilder;

import java.util.function.Function;

public class InJoinExpectingOn, RT> {
    private final SelectStatement statement;
    private final Function,J> newJoinClause;

    protected InJoinExpectingOn(SelectStatement statement, Function,J> newJoinClause) {
        this.statement = statement;
        this.newJoinClause = newJoinClause;
    }

    public  ExpressionBuilder on(TypedExpression lhs) {
        return ExpressionBuilder.of(lhs, this::setOnClause);
    }

    public  ExpressionBuilder on(Function1 lhs) {
        return ExpressionBuilder.of(UnresolvedColumn.of(lhs), this::setOnClause);
    }

    public  ExpressionBuilder on(FunctionOptional1 lhs) {
        return ExpressionBuilder.of(UnresolvedColumn.of(lhs), this::setOnClause);
    }

    public  ExpressionBuilder on(String alias, Function1 lhs) {
        return ExpressionBuilder.of(UnresolvedColumn.of(alias, lhs), this::setOnClause);
    }

    public  ExpressionBuilder on(String alias, FunctionOptional1 lhs) {
        return ExpressionBuilder.of(UnresolvedColumn.of(alias, lhs), this::setOnClause);
    }

    public  ExpressionBuilder on(Alias alias, Function1 lhs) {
        return ExpressionBuilder.of(ResolvedColumn.of(alias, lhs), this::setOnClause);
    }

    public  ExpressionBuilder on(Alias alias, FunctionOptional1 lhs) {
        return ExpressionBuilder.of(ResolvedColumn.of(alias, lhs), this::setOnClause);
    }

    @SuppressWarnings("unchecked")
    private J setOnClause(BooleanExpression e) {
        statement.from().on(e);
        return newJoinClause.apply(statement);
    }
}