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Add room library. Create Entity+Dao+Database
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11 changes: 11 additions & 0 deletions
11
app/src/main/java/com/karumi/jetpack/superheroes/common/SuperHeroesDatabase.kt
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package com.karumi.jetpack.superheroes.common | ||
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import androidx.room.Database | ||
import androidx.room.RoomDatabase | ||
import com.karumi.jetpack.superheroes.data.repository.room.SuperHeroDao | ||
import com.karumi.jetpack.superheroes.data.repository.room.SuperHeroEntity | ||
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@Database(entities = [SuperHeroEntity::class], version = 1) | ||
abstract class SuperHeroesDatabase : RoomDatabase() { | ||
abstract fun superHeroesDao(): SuperHeroDao | ||
} |
42 changes: 18 additions & 24 deletions
42
app/src/main/java/com/karumi/jetpack/superheroes/data/repository/LocalSuperHeroDataSource.kt
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package com.karumi.jetpack.superheroes.data.repository | ||
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import com.karumi.jetpack.superheroes.data.repository.room.SuperHeroDao | ||
import com.karumi.jetpack.superheroes.data.repository.room.SuperHeroEntity | ||
import com.karumi.jetpack.superheroes.domain.model.SuperHero | ||
import kotlinx.coroutines.delay | ||
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class LocalSuperHeroDataSource { | ||
companion object { | ||
private const val BIT_TIME = 250L | ||
} | ||
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private val superHeroes: MutableMap<String, SuperHero> = mutableMapOf() | ||
class LocalSuperHeroDataSource( | ||
private val dao: SuperHeroDao | ||
) { | ||
suspend fun getAllSuperHeroes(): List<SuperHero> = | ||
dao.getAll() | ||
.map { it.toSuperHero() } | ||
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suspend fun getAllSuperHeroes(): List<SuperHero> { | ||
waitABit() | ||
return superHeroes.values.toList() | ||
} | ||
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suspend fun get(id: String): SuperHero? { | ||
waitABit() | ||
return superHeroes[id] | ||
} | ||
suspend fun get(id: String): SuperHero? = | ||
dao.getById(id)?.toSuperHero() | ||
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suspend fun saveAll(all: List<SuperHero>) { | ||
waitABit() | ||
superHeroes.clear() | ||
superHeroes.putAll(all.associateBy { it.id }) | ||
dao.deleteAll() | ||
dao.insertAll(all.map { it.toEntity() }) | ||
} | ||
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suspend fun save(superHero: SuperHero): SuperHero { | ||
waitABit() | ||
superHeroes[superHero.id] = superHero | ||
dao.insertAll(listOf(superHero.toEntity())) | ||
return superHero | ||
} | ||
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private suspend fun waitABit() { | ||
delay(BIT_TIME) | ||
} | ||
private fun SuperHeroEntity.toSuperHero(): SuperHero = | ||
SuperHero(id, name, photo, isAvenger, description) | ||
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private fun SuperHero.toEntity(): SuperHeroEntity = | ||
SuperHeroEntity(id, name, photo, isAvenger, description) | ||
} |
21 changes: 21 additions & 0 deletions
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app/src/main/java/com/karumi/jetpack/superheroes/data/repository/room/SuperHeroDao.kt
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package com.karumi.jetpack.superheroes.data.repository.room | ||
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import androidx.room.Dao | ||
import androidx.room.Insert | ||
import androidx.room.OnConflictStrategy | ||
import androidx.room.Query | ||
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@Dao | ||
interface SuperHeroDao { | ||
@Query("SELECT * FROM superheroes") | ||
suspend fun getAll(): List<SuperHeroEntity> | ||
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@Query("SELECT * FROM superheroes WHERE id = :id") | ||
suspend fun getById(id: String): SuperHeroEntity? | ||
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@Insert(onConflict = OnConflictStrategy.REPLACE) | ||
suspend fun insertAll(superHeroes: List<SuperHeroEntity>) | ||
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@Query("DELETE FROM superheroes") | ||
suspend fun deleteAll() | ||
} |
13 changes: 13 additions & 0 deletions
13
app/src/main/java/com/karumi/jetpack/superheroes/data/repository/room/SuperHeroEntity.kt
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package com.karumi.jetpack.superheroes.data.repository.room | ||
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import androidx.room.Entity | ||
import androidx.room.PrimaryKey | ||
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@Entity(tableName = "superheroes") | ||
data class SuperHeroEntity( | ||
@PrimaryKey val id: String, | ||
val name: String, | ||
val photo: String?, | ||
val isAvenger: Boolean, | ||
val description: String | ||
) |