Class

com.gilt.gfc.util

SingletonCache

Related Doc: package util

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class SingletonCache[K] extends AnyRef

For objects that need their lifecycle to be managed and can't be just throw-away. E.g. for when ConcurrentHashMap.putIfAbsent(new Something()) may result in a Something instance that need to be closed if another thread's putIfAbsent was successful.

In this case it's easier to not create unnecessary instances in the first place.

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Instance Constructors

  1. new SingletonCache()

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Value Members

  1. final def !=(arg0: Any): Boolean

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  2. final def ##(): Int

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  3. final def ==(arg0: Any): Boolean

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  4. def apply[V](key: K)(generator: ⇒ V): V

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    Get a cached value for a key or generate a new one if missing.

    Get a cached value for a key or generate a new one if missing. Only calls generator() once for each missing key. Generator is given here and not in the constructor to allow for caching of values of different types where type info is required for generator to work. E.g. calls that use reflection.

  5. final def asInstanceOf[T0]: T0

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  6. def asMap[V]: Map[K, V]

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  7. def clone(): AnyRef

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  8. final def eq(arg0: AnyRef): Boolean

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  9. def equals(arg0: Any): Boolean

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  10. def finalize(): Unit

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  11. final def getClass(): Class[_]

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  12. def hashCode(): Int

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  13. final def isInstanceOf[T0]: Boolean

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  14. final def ne(arg0: AnyRef): Boolean

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  15. final def notify(): Unit

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  16. final def notifyAll(): Unit

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  17. final def synchronized[T0](arg0: ⇒ T0): T0

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  18. def toString(): String

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  19. def values[V]: Iterable[V]

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  20. final def wait(): Unit

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  21. final def wait(arg0: Long, arg1: Int): Unit

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  22. final def wait(arg0: Long): Unit

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