harness-sql
API
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harness-sql/harness.sql

harness.sql

package harness.sql

Members list

Packages

package harness.sql.autoSchema
package harness.sql.error
package harness.sql.query
package harness.sql.typeclass

Type members

Classlikes

final case class AppliedCol[T](tableVarName: String, col: Col[T])

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object AppliedCol

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class Object
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AppliedCol.type
trait Atomically[E]

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class Object
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class IgnoreAtomicity[E]
trait WithConnection[E]
class Live[E]
class LiveRollback[E]
object Atomically

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final case class Col[T](colName: String, colType: ColType, codec: QueryCodecSingle[T], nullable: Boolean, keyType: Option[KeyType])

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Col[T]
object Col

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final case class ColRef(tableVarName: String, colName: String)

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final class ConnectionFactory

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object ConnectionFactory

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final class Database

This represents access to an SQL database. When accessing your database, it could be in one of 3 states:

This represents access to an SQL database. When accessing your database, it could be in one of 3 states:

  • Pool : you are not in a transaction, and are able to execute as many parallel fibers as your pool will allow.
  • Transaction : you are in a db transaction, and are only able to execute 1 parallel fiber at a time.
  • Savepoint : you are in a db transaction + savepoint, and are only able to execute 1 parallel fiber at a time.

You can get a Transaction/Savepoint by using Atomically.atomically/Atomically.atomicScope. These can also be accessed via: Atomically.Live$.atomically/Atomically.Live$.atomicScope. The reason Transaction/Savepoint only support a single parallel fiber is because anything happening atomically in the db needs to be on a single connection, and transactions/savepoints are scoped to the entire connection. Otherwise, you could end up with a scenario like:

  • in transaction
    • fiber-a : in savepoint
    • fiber-b : in savepoint
    • fiber-a : insert R1
    • fiber-b : insert R2
    • fiber-a : insert R3
    • fiber-a : rollback (insertion of R2 is also rolled back)

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object Database

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final case class DbConfig

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object DbConfig

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final case class ForeignKeyRef

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object ForeignKeyRef

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final class OptionEv[T]

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object OptionEv

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final class PreparedStatement

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object PreparedStatement

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final class ResultSet[O](queryName: String, fragment: Fragment, rs: ResultSet, decoder: QueryDecoderMany[O])

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abstract class Table extends Product

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class WithId[F, TKId]
class Migration[F]
object Table

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Table.type
abstract class TableQueries[Id <: Id, T <: ([F[_]] =>> WithId[F, Id])](implicit ti: TableSchema[T])

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final case class TableSchema[T <: ([_[_]] =>> Table)](tableSchema: String, tableName: String, columns: T[Col], functorK: FunctorK[T], flatten: Flatten[T], codec: QueryCodecMany[T[Identity]], colChunk: Chunk[Col[_]], insertFragment: Fragment)

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object TableSchema

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