org.mybatis.dynamic.sql.util.kotlin.KotlinUpdateBuilder.kt Maven / Gradle / Ivy

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/*
 *    Copyright 2016-2024 the original author or authors.
 *
 *    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
 *
 *       https://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 org.mybatis.dynamic.sql.util.kotlin

import org.mybatis.dynamic.sql.BasicColumn
import org.mybatis.dynamic.sql.SortSpecification
import org.mybatis.dynamic.sql.SqlColumn
import org.mybatis.dynamic.sql.update.UpdateDSL
import org.mybatis.dynamic.sql.update.UpdateModel
import org.mybatis.dynamic.sql.util.Buildable

typealias UpdateCompleter = KotlinUpdateBuilder.() -> Unit

class KotlinUpdateBuilder(private val dsl: UpdateDSL) :
    KotlinBaseBuilder>(), Buildable {

    fun  set(column: SqlColumn): KotlinSetClauseFinisher = KotlinSetClauseFinisher(column)

    fun orderBy(vararg columns: SortSpecification) {
        dsl.orderBy(columns.toList())
    }

    fun limit(limit: Long) {
        dsl.limit(limit)
    }

    override fun build(): UpdateModel = dsl.build()

    override fun getDsl(): UpdateDSL = dsl

    @MyBatisDslMarker
    @Suppress("TooManyFunctions")
    inner class KotlinSetClauseFinisher(private val column: SqlColumn) {
        fun equalToNull(): Unit =
            applyToDsl {
                set(column).equalToNull()
            }

        infix fun equalToConstant(constant: String): Unit =
            applyToDsl {
                set(column).equalToConstant(constant)
            }

        infix fun equalToStringConstant(constant: String): Unit =
            applyToDsl {
                set(column).equalToStringConstant(constant)
            }

        infix fun equalTo(value: T & Any): Unit = equalTo { value }

        infix fun equalTo(value: () -> T & Any): Unit =
            applyToDsl {
                set(column).equalTo(value)
            }

        infix fun equalTo(rightColumn: BasicColumn): Unit =
            applyToDsl {
                set(column).equalTo(rightColumn)
            }

        infix fun equalToOrNull(value: T?): Unit = equalToOrNull { value }

        infix fun equalToOrNull(value: () -> T?): Unit =
            applyToDsl {
                set(column).equalToOrNull(value)
            }

        infix fun equalToQueryResult(subQuery: KotlinSubQueryBuilder.() -> Unit): Unit =
            applyToDsl {
                set(column).equalTo(KotlinSubQueryBuilder().apply(subQuery))
            }

        infix fun equalToWhenPresent(value: () -> T?): Unit =
            applyToDsl {
                set(column).equalToWhenPresent(value)
            }

        infix fun equalToWhenPresent(value: T?): Unit = equalToWhenPresent { value }

        private fun applyToDsl(block: UpdateDSL.() -> Unit) {
            [email protected](block)
        }
    }
}