abstract class LazyCell[A] extends Cell[A]
A cell that evaluates its value on demand. Cell access is unsychronized
for performance reasons. However the cell may be safely accessed from multiple threads
provided its create
method is idempotent.
- Source
- Cell.scala
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- Cell
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Instance Constructors
- new LazyCell()
Abstract Value Members
- abstract def create: A
Create a value.
Create a value. This method is called when the lazy cell is first accessed. After it is first accessed the value will be cached. There is a chance this method will be called more than once if the cell is accessed from multiple threads.
- Attributes
- protected
- abstract def emptyMarker: A
A value of type
A
that indicates the cell hasn't been evaluated.A value of type
A
that indicates the cell hasn't been evaluated. Common values arenull
,None
or0
. It's important the marker is not a valid value.- Attributes
- protected
Concrete Value Members
- final def !=(arg0: Any): Boolean
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- final def ##: Int
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- final def ==(arg0: Any): Boolean
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- final def asInstanceOf[T0]: T0
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- def clone(): AnyRef
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- @throws(classOf[java.lang.CloneNotSupportedException]) @native()
- final def eq(arg0: AnyRef): Boolean
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- def equals(arg0: AnyRef): Boolean
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- def evaluated: Boolean
Whether or not the cell value has been evaluated yet.
- def finalize(): Unit
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- protected[lang]
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- @throws(classOf[java.lang.Throwable])
- final def getClass(): Class[_ <: AnyRef]
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- def hashCode(): Int
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- final def ne(arg0: AnyRef): Boolean
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- final def synchronized[T0](arg0: => T0): T0
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- def toString(): String
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- Cell → AnyRef → Any
- def value: A
The value in the cell.
- final def wait(): Unit
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- @throws(classOf[java.lang.InterruptedException])
- 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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- @throws(classOf[java.lang.InterruptedException]) @native()