trait Database[F[_], S[_]] extends Closeable
Effect-polymorphic database API.
F[_] is the effect type used for non-streaming execution (for example
cats.effect.IO or scala.concurrent.Future), and S[_] is the stream
type used for streaming results.
Concrete wrappers (for example slick.cats.Database, slick.future.Database,
slick.zio.Database) delegate to an underlying Slick backend database and
adapt it into their effect/stream abstractions.
- Source
- Database.scala
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- Database
- Closeable
- AutoCloseable
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- Any
- by StringFormat
- by Ensuring
- by ArrowAssoc
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Abstract Value Members
- abstract def close(): Unit
Free all resources allocated for this database instance.
Free all resources allocated for this database instance.
Implementations must be idempotent (safe to call more than once) and thread-safe, as required by the
java.io.Closeablecontract.- Definition Classes
- Database → Closeable → AutoCloseable
- abstract def controlStatus: F[ControlStatus]
Inspect current admission and connection-slot control status.
- abstract def run[R](a: DBIOAction[R, NoStream, Nothing]): F[R]
Run a
DBIOActionand return its result inF[R]. - abstract def stream[T](a: DBIOAction[_, Streaming[T], Nothing]): S[T]
Open a streaming
DBIOActionasS[T].Open a streaming
DBIOActionasS[T].Resource acquisition and release semantics are defined by the concrete wrapper implementation, but must ensure backend resources are released when the stream completes, fails, or is canceled.
Concrete Value Members
- final def !=(arg0: Any): Boolean
- Definition Classes
- AnyRef → Any
- final def ##: Int
- Definition Classes
- AnyRef → Any
- def ->[B](y: B): (Database[F, S], B)
- final def ==(arg0: Any): Boolean
- Definition Classes
- AnyRef → Any
- final def asInstanceOf[T0]: T0
- Definition Classes
- Any
- def clone(): AnyRef
- Attributes
- protected[lang]
- Definition Classes
- AnyRef
- Annotations
- @throws(classOf[java.lang.CloneNotSupportedException]) @IntrinsicCandidate() @native()
- def ensuring(cond: (Database[F, S]) => Boolean, msg: => Any): Database[F, S]
- def ensuring(cond: (Database[F, S]) => Boolean): Database[F, S]
- def ensuring(cond: Boolean, msg: => Any): Database[F, S]
- def ensuring(cond: Boolean): Database[F, S]
- final def eq(arg0: AnyRef): Boolean
- Definition Classes
- AnyRef
- def equals(arg0: AnyRef): Boolean
- Definition Classes
- AnyRef → Any
- final def getClass(): Class[_ <: AnyRef]
- Definition Classes
- AnyRef → Any
- Annotations
- @IntrinsicCandidate() @native()
- def hashCode(): Int
- Definition Classes
- AnyRef → Any
- Annotations
- @IntrinsicCandidate() @native()
- final def isInstanceOf[T0]: Boolean
- Definition Classes
- Any
- final def ne(arg0: AnyRef): Boolean
- Definition Classes
- AnyRef
- final def notify(): Unit
- Definition Classes
- AnyRef
- Annotations
- @IntrinsicCandidate() @native()
- final def notifyAll(): Unit
- Definition Classes
- AnyRef
- Annotations
- @IntrinsicCandidate() @native()
- final def synchronized[T0](arg0: => T0): T0
- Definition Classes
- AnyRef
- def toString(): String
- Definition Classes
- AnyRef → Any
- final def wait(arg0: Long, arg1: Int): Unit
- Definition Classes
- AnyRef
- Annotations
- @throws(classOf[java.lang.InterruptedException])
- final def wait(arg0: Long): Unit
- Definition Classes
- AnyRef
- Annotations
- @throws(classOf[java.lang.InterruptedException]) @native()
- final def wait(): Unit
- Definition Classes
- AnyRef
- Annotations
- @throws(classOf[java.lang.InterruptedException])
Deprecated Value Members
- def finalize(): Unit
- Attributes
- protected[lang]
- Definition Classes
- AnyRef
- Annotations
- @throws(classOf[java.lang.Throwable]) @Deprecated
- Deprecated
(Since version 9)
- def formatted(fmtstr: String): String
- Implicit
- This member is added by an implicit conversion from Database[F, S] toStringFormat[Database[F, S]] performed by method StringFormat in scala.Predef.
- Definition Classes
- StringFormat
- Annotations
- @deprecated @inline()
- Deprecated
(Since version 2.12.16) Use
formatString.format(value)instead ofvalue.formatted(formatString), or use thef""string interpolator. In Java 15 and later,formattedresolves to the new method in String which has reversed parameters.
- def →[B](y: B): (Database[F, S], B)
- Implicit
- This member is added by an implicit conversion from Database[F, S] toArrowAssoc[Database[F, S]] performed by method ArrowAssoc in scala.Predef.
- Definition Classes
- ArrowAssoc
- Annotations
- @deprecated
- Deprecated
(Since version 2.13.0) Use
->instead. If you still wish to display it as one character, consider using a font with programming ligatures such as Fira Code.

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Scala Language-Integrated Connection Kit
This is the API documentation for the Slick database library. It should be used as an additional resource to the user manual.
Further documentation for Slick can be found on the documentation pages.
To the slick package list...