class BasicStreamingActionContext extends BasicActionContext with StreamingActionContext with Subscription
A special DatabaseActionContext for streaming execution.
- Source
- BasicBackend.scala
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- def ->[B](y: B): (BasicStreamingActionContext, B)
- Implicit
- This member is added by an implicit conversion from BasicStreamingActionContext toArrowAssoc[BasicStreamingActionContext] performed by method ArrowAssoc in scala.Predef.
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- def cancel(): Unit
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- BasicStreamingActionContext → Subscription
- def cancelled: Boolean
Whether the stream has been cancelled by the Subscriber
- def clone(): AnyRef
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- protected[lang]
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- @throws(classOf[java.lang.CloneNotSupportedException]) @HotSpotIntrinsicCandidate() @native()
- def delivered(num: Long): Long
Indicate that the specified number of elements has been delivered.
Indicate that the specified number of elements has been delivered. Returns the remaining demand. This is an atomic operation. It must only be called from the synchronous action context which performs the streaming.
- def demandBatch: Long
Get the current demand that has not yet been marked as delivered and mark it as being in the current batch.
Get the current demand that has not yet been marked as delivered and mark it as being in the current batch. When this value is negative, the initial streaming action is still running and the real demand can be computed by subtracting
Long.MinValue
from the returned value. - def emit(v: Any): Unit
Emit a single result of the stream.
Emit a single result of the stream. Any Exception thrown by this method should be passed on to the caller.
- Definition Classes
- BasicStreamingActionContext → StreamingActionContext
- def ensuring(cond: (BasicStreamingActionContext) => Boolean, msg: => Any): BasicStreamingActionContext
- Implicit
- This member is added by an implicit conversion from BasicStreamingActionContext toEnsuring[BasicStreamingActionContext] performed by method Ensuring in scala.Predef.
- Definition Classes
- Ensuring
- def ensuring(cond: (BasicStreamingActionContext) => Boolean): BasicStreamingActionContext
- Implicit
- This member is added by an implicit conversion from BasicStreamingActionContext toEnsuring[BasicStreamingActionContext] performed by method Ensuring in scala.Predef.
- Definition Classes
- Ensuring
- def ensuring(cond: Boolean, msg: => Any): BasicStreamingActionContext
- Implicit
- This member is added by an implicit conversion from BasicStreamingActionContext toEnsuring[BasicStreamingActionContext] performed by method Ensuring in scala.Predef.
- Definition Classes
- Ensuring
- def ensuring(cond: Boolean): BasicStreamingActionContext
- Implicit
- This member is added by an implicit conversion from BasicStreamingActionContext toEnsuring[BasicStreamingActionContext] performed by method Ensuring in scala.Predef.
- Definition Classes
- Ensuring
- final def eq(arg0: AnyRef): Boolean
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- final def isPinned: Boolean
Check if the session is pinned.
Check if the session is pinned. May only be called from a synchronous action context.
- Definition Classes
- ActionContext
- final def ne(arg0: AnyRef): Boolean
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- final def notify(): Unit
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- @HotSpotIntrinsicCandidate() @native()
- final def notifyAll(): Unit
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- @HotSpotIntrinsicCandidate() @native()
- final def pin: Unit
Pin the current session.
Pin the current session. Multiple calls to
pin
may be nested. The same number of calls tounpin
is required in order to mark the session as not pinned anymore. A pinned session will not be released at the end of a primitive database action. Instead, the same pinned session is passed to all subsequent actions until it is unpinned. Note that pinning does not force an actual database connection to be opened. This still happens on demand. May only be called from a synchronous action context.- Definition Classes
- ActionContext
- def request(l: Long): Unit
- Definition Classes
- BasicStreamingActionContext → Subscription
- def restartStreaming: Unit
Restart a suspended streaming action.
Restart a suspended streaming action. Must only be called from the Subscriber context.
- def session: Session
- Definition Classes
- BasicActionContext
- val streamingResultPromise: Promise[Null]
The Promise to complete when streaming has finished.
- def subscription: BasicStreamingActionContext
Get the Subscription for this stream.
Get the Subscription for this stream.
- Definition Classes
- BasicStreamingActionContext → StreamingActionContext
- final def synchronized[T0](arg0: => T0): T0
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- AnyRef
- def toString(): String
- Definition Classes
- AnyRef → Any
- def tryOnComplete: Unit
Finish the stream with
onComplete
if it is not finished yet.Finish the stream with
onComplete
if it is not finished yet. May only be called from a synchronous action context. - def tryOnError(t: Throwable): Unit
Finish the stream with
onError
if it is not finished yet.Finish the stream with
onError
if it is not finished yet. May only be called from a synchronous action context. - final def unpin: Unit
Unpin this session once.
Unpin this session once. May only be called from a synchronous action context.
- Definition Classes
- ActionContext
- val useSameThread: Boolean
Whether to run all operations on the current thread or schedule them normally on the appropriate ExecutionContext.
Whether to run all operations on the current thread or schedule them normally on the appropriate ExecutionContext. This is used by the blocking API.
- Attributes
- protected[BasicBackend]
- Definition Classes
- BasicStreamingActionContext → BasicActionContext
- final def wait(arg0: Long, arg1: Int): Unit
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- @throws(classOf[java.lang.InterruptedException])
- final def wait(arg0: Long): Unit
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- def finalize(): Unit
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- Deprecated
(Since version 9)
- def formatted(fmtstr: String): String
- Implicit
- This member is added by an implicit conversion from BasicStreamingActionContext toStringFormat[BasicStreamingActionContext] 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,formatted
resolves to the new method in String which has reversed parameters.
- def →[B](y: B): (BasicStreamingActionContext, B)
- Implicit
- This member is added by an implicit conversion from BasicStreamingActionContext toArrowAssoc[BasicStreamingActionContext] 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.
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