commonMain.com.squareup.sqldelight.EnumColumnAdapter.kt Maven / Gradle / Ivy

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Multiplatform runtime library to support generated code

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/*
 * Copyright (C) 2016 Square, Inc.
 *
 * 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.squareup.sqldelight

/** A [ColumnAdapter] which maps the enum class `T` to a string in the database. */
class EnumColumnAdapter> @PublishedApi internal constructor(
  private val enumValues: Array
) : ColumnAdapter {
  override fun decode(databaseValue: String): T = enumValues.first { it.name == databaseValue }

  override fun encode(value: T) = value.name
}

/** A [ColumnAdapter] which maps the enum class `T` to a string in the database. */
@Suppress("FunctionName") // Emulating a constructor.
inline fun > EnumColumnAdapter(): EnumColumnAdapter {
  return EnumColumnAdapter(enumValues())
}