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android database improvements

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This commit is contained in:
InsanusMokrassar 2021-03-05 16:15:21 +06:00
parent 5f38d9635d
commit d1c6c7696a
6 changed files with 59 additions and 37 deletions
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5
CHANGELOG.md
View File

@ -4,6 +4,11 @@
* `Versions`:
* `Coroutines`: `1.4.2` -> `1.4.3`
* `Repos`:
* `Common`
* `Android`:
* New `blockingReadableTransaction`/`blockingWritableTransaction`
* Android databases realizations now use blocking transactions where it is possible
## 0.4.28

17
repos/common/src/main/kotlin/dev/inmo/micro_utils/repos/DatabaseTransactions.kt
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@ -32,7 +32,9 @@ private object ContextsPool {
suspend fun <T> use(block: suspend (CoroutineContext) -> T): T = acquireContext().let {
try {
safely {
block(it)
}
} finally {
freeContext(it)
}
@ -48,11 +50,12 @@ class TransactionContext(
}
suspend fun <T> SQLiteDatabase.transaction(block: suspend SQLiteDatabase.() -> T): T {
return coroutineContext[TransactionContext] ?.let {
withContext(it.databaseContext) {
coroutineContext[TransactionContext] ?.let {
return withContext(it.databaseContext) {
block()
}
} ?: ContextsPool.use { context ->
}
return ContextsPool.use { context ->
withContext(TransactionContext(context) + context) {
beginTransaction()
safely(
@ -70,18 +73,18 @@ suspend fun <T> SQLiteDatabase.transaction(block: suspend SQLiteDatabase.() -> T
}
}
inline fun <T> SQLiteDatabase.inlineTransaction(block: SQLiteDatabase.() -> T): T {
inline fun <T> SQLiteDatabase.inlineTransaction(crossinline block: SQLiteDatabase.() -> T): T {
return when {
inTransaction() -> block()
else -> {
beginTransaction()
try {
block().also {
setTransactionSuccessful()
}
block().also { setTransactionSuccessful() }
} finally {
endTransaction()
}
}
}
}
fun <T> SQLiteDatabase.blockingTransaction(block: SQLiteDatabase.() -> T): T = inlineTransaction(block)

14
repos/common/src/main/kotlin/dev/inmo/micro_utils/repos/StandardSQLHelper.kt
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@ -31,6 +31,20 @@ class StandardSQLHelper(
suspend fun <T> readableTransaction(block: suspend SQLiteDatabase.() -> T): T = sqlOpenHelper.readableTransaction(block)
}
fun <T> SQLiteOpenHelper.blockingWritableTransaction(block: SQLiteDatabase.() -> T): T {
return writableDatabase.blockingTransaction(block)
}
fun <T> SQLiteOpenHelper.blockingReadableTransaction(block: SQLiteDatabase.() -> T): T {
return readableDatabase.blockingTransaction(block)
}
fun <T> StandardSQLHelper.blockingWritableTransaction(block: SQLiteDatabase.() -> T): T {
return sqlOpenHelper.blockingWritableTransaction(block)
}
fun <T> StandardSQLHelper.blockingReadableTransaction(block: SQLiteDatabase.() -> T): T {
return sqlOpenHelper.blockingReadableTransaction(block)
}
suspend fun <T> SQLiteOpenHelper.writableTransaction(block: suspend SQLiteDatabase.() -> T): T {
return writableDatabase.transaction(block)
}

2
repos/common/src/main/kotlin/dev/inmo/micro_utils/repos/crud/AbstractAndroidCRUDRepo.kt
View File

@ -20,7 +20,7 @@ abstract class AbstractAndroidCRUDRepo<ObjectType, IdType>(
it.count
}.toLong()
override suspend fun contains(id: IdType): Boolean = helper.readableTransaction {
override suspend fun contains(id: IdType): Boolean = helper.blockingReadableTransaction {
select(
tableName,
null,

18
repos/common/src/main/kotlin/dev/inmo/micro_utils/repos/crud/AbstractMutableAndroidCRUDRepo.kt
View File

@ -19,9 +19,10 @@ abstract class AbstractMutableAndroidCRUDRepo<ObjectType, IdType, InputValueType
protected abstract suspend fun InputValueType.asContentValues(id: IdType? = null): ContentValues
override suspend fun create(values: List<InputValueType>): List<ObjectType> {
val indexes = helper.writableTransaction {
values.map {
insert(tableName, null, it.asContentValues())
val valuesContentValues = values.map { it.asContentValues() }
val indexes = helper.blockingWritableTransaction {
valuesContentValues.map {
insert(tableName, null, it)
}
}
return helper.readableTransaction {
@ -47,7 +48,7 @@ abstract class AbstractMutableAndroidCRUDRepo<ObjectType, IdType, InputValueType
override suspend fun deleteById(ids: List<IdType>) {
val deleted = mutableListOf<IdType>()
helper.writableTransaction {
helper.blockingWritableTransaction {
ids.forEach { id ->
delete(tableName, "$idColumnName=?", arrayOf(id.asId)).also {
if (it > 0) {
@ -64,7 +65,7 @@ abstract class AbstractMutableAndroidCRUDRepo<ObjectType, IdType, InputValueType
override suspend fun update(id: IdType, value: InputValueType): ObjectType? {
val asContentValues = value.asContentValues(id)
if (asContentValues.keySet().isNotEmpty()) {
helper.writableTransaction {
helper.blockingWritableTransaction {
update(
tableName,
asContentValues,
@ -79,11 +80,12 @@ abstract class AbstractMutableAndroidCRUDRepo<ObjectType, IdType, InputValueType
}
override suspend fun update(values: List<UpdatedValuePair<IdType, InputValueType>>): List<ObjectType> {
val contentValues = values.map { (id, value) -> id to value.asContentValues(id) }
helper.writableTransaction {
values.forEach { (id, value) ->
contentValues.forEach { (id, contentValues) ->
update(
tableName,
value.asContentValues(id),
contentValues,
"$idColumnName=?",
arrayOf(id.asId)
)
@ -98,5 +100,5 @@ abstract class AbstractMutableAndroidCRUDRepo<ObjectType, IdType, InputValueType
}
}
override suspend fun count(): Long = helper.readableTransaction { select(tableName).use { it.count.toLong() } }
override suspend fun count(): Long = helper.blockingReadableTransaction { select(tableName).use { it.count.toLong() } }
}

26
repos/common/src/main/kotlin/dev/inmo/micro_utils/repos/onetomany/OneToManyAndroidRepo.kt
View File

@ -42,8 +42,7 @@ class OneToManyAndroidRepo<Key, Value>(
private fun String.asKey(): Key = internalSerialFormat.decodeFromString(keySerializer, this)
init {
runBlocking(DatabaseCoroutineContext) {
helper.writableTransaction {
helper.blockingWritableTransaction {
createTable(
tableName,
internalId to internalIdType,
@ -52,11 +51,10 @@ class OneToManyAndroidRepo<Key, Value>(
)
}
}
}
override suspend fun add(toAdd: Map<Key, List<Value>>) {
val added = mutableListOf<Pair<Key, Value>>()
helper.writableTransaction {
helper.blockingWritableTransaction {
toAdd.forEach { (k, values) ->
values.forEach { v ->
insert(
@ -78,7 +76,7 @@ class OneToManyAndroidRepo<Key, Value>(
}
override suspend fun clear(k: Key) {
helper.writableTransaction {
helper.blockingWritableTransaction {
delete(tableName, "$idColumnName=?", arrayOf(k.asId()))
}.also {
if (it > 0) {
@ -88,7 +86,7 @@ class OneToManyAndroidRepo<Key, Value>(
}
override suspend fun set(toSet: Map<Key, List<Value>>) {
val (clearedKeys, inserted) = helper.writableTransaction {
val (clearedKeys, inserted) = helper.blockingWritableTransaction {
toSet.mapNotNull { (k, _) ->
if (delete(tableName, "$idColumnName=?", arrayOf(k.asId())) > 0) {
k
@ -110,13 +108,13 @@ class OneToManyAndroidRepo<Key, Value>(
inserted.forEach { newPair -> _onNewValue.emit(newPair) }
}
override suspend fun contains(k: Key): Boolean = helper.readableTransaction {
override suspend fun contains(k: Key): Boolean = helper.blockingReadableTransaction {
select(tableName, selection = "$idColumnName=?", selectionArgs = arrayOf(k.asId()), limit = FirstPagePagination(1).limitClause()).use {
it.count > 0
}
}
override suspend fun contains(k: Key, v: Value): Boolean = helper.readableTransaction {
override suspend fun contains(k: Key, v: Value): Boolean = helper.blockingReadableTransaction {
select(
tableName,
selection = "$idColumnName=? AND $valueColumnName=?",
@ -127,7 +125,7 @@ class OneToManyAndroidRepo<Key, Value>(
}
}
override suspend fun count(): Long =helper.readableTransaction {
override suspend fun count(): Long =helper.blockingReadableTransaction {
select(
tableName
).use {
@ -135,7 +133,7 @@ class OneToManyAndroidRepo<Key, Value>(
}
}.toLong()
override suspend fun count(k: Key): Long = helper.readableTransaction {
override suspend fun count(k: Key): Long = helper.blockingReadableTransaction {
select(tableName, selection = "$idColumnName=?", selectionArgs = arrayOf(k.asId()), limit = FirstPagePagination(1).limitClause()).use {
it.count
}
@ -147,7 +145,7 @@ class OneToManyAndroidRepo<Key, Value>(
reversed: Boolean
): PaginationResult<Value> = count(k).let { count ->
val resultPagination = pagination.let { if (reversed) pagination.reverse(count) else pagination }
helper.readableTransaction {
helper.blockingReadableTransaction {
select(
tableName,
selection = "$idColumnName=?",
@ -173,7 +171,7 @@ class OneToManyAndroidRepo<Key, Value>(
reversed: Boolean
): PaginationResult<Key> = count().let { count ->
val resultPagination = pagination.let { if (reversed) pagination.reverse(count) else pagination }
helper.readableTransaction {
helper.blockingReadableTransaction {
select(
tableName,
limit = resultPagination.limitClause()
@ -198,7 +196,7 @@ class OneToManyAndroidRepo<Key, Value>(
reversed: Boolean
): PaginationResult<Key> = count().let { count ->
val resultPagination = pagination.let { if (reversed) pagination.reverse(count) else pagination }
helper.readableTransaction {
helper.blockingReadableTransaction {
select(
tableName,
selection = "$valueColumnName=?",
@ -220,7 +218,7 @@ class OneToManyAndroidRepo<Key, Value>(
}
override suspend fun remove(toRemove: Map<Key, List<Value>>) {
helper.writableTransaction {
helper.blockingWritableTransaction {
toRemove.flatMap { (k, vs) ->
vs.mapNotNullA { v ->
if (delete(tableName, "$idColumnName=? AND $valueColumnName=?", arrayOf(k.asId(), v.asValue())) > 0) {