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c

io.delta.flink.source.internal.utils

TransitiveOptional

class TransitiveOptional[T] extends AnyRef

A container object which may or may not contain a non-null value. It supports chaining through

An example of using TransitiveOptional class for method chaining where every method returns TransitiveOptional instance. In this chain, the next step will be executed ONLY if the previous one returned an empty TransitiveOptional 

    return getSnapshotFromCheckpoint(checkpointSnapshotVersion)
           .or(this::getSnapshotFromStartingVersionOption)
           .or(this::getSnapshotFromStartingTimestampOption)
           .or(this::getHeadSnapshot)
           .get();

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  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. final def asInstanceOf[T0]: T0
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  5. def clone(): AnyRef
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    protected[lang]
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    @throws( ... ) @native()
  6. final def eq(arg0: AnyRef): Boolean
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  7. def equals(arg0: Any): Boolean
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  8. def finalize(): Unit
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    protected[lang]
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    @throws( classOf[java.lang.Throwable] )
  9. def get(): T

    If a value is present, returns the value, otherwise throws NoSuchElementException.

    If a value is present, returns the value, otherwise throws NoSuchElementException.

    returns

    the non-null value described by this TransitiveOptional

    Exceptions thrown

    NoSuchElementException if no value is present

  10. final def getClass(): Class[_]
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    @native()
  11. def hashCode(): Int
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    @native()
  12. final def isInstanceOf[T0]: Boolean
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  13. final def ne(arg0: AnyRef): Boolean
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  14. final def notify(): Unit
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    @native()
  15. final def notifyAll(): Unit
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    @native()
  16. def or(supplier: Supplier[_ <: TransitiveOptional[_ <: T]]): TransitiveOptional[T]

    If a value is present, returns an TransitiveOptional describing the value, otherwise returns an TransitiveOptional produced by the supplying function.

    If a value is present, returns an TransitiveOptional describing the value, otherwise returns an TransitiveOptional produced by the supplying function.

    supplier

    the supplying function that produces an TransitiveOptional to be returned

    returns

    returns an TransitiveOptional describing the value of this TransitiveOptional, if a value is present, otherwise an TransitiveOptional produced by the supplying function.

    Exceptions thrown

    NullPointerException if the supplying function is null or produces a null result

  17. final def synchronized[T0](arg0: ⇒ T0): T0
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  18. def toString(): String
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  19. final def wait(): Unit
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    @throws( ... )
  20. final def wait(arg0: Long, arg1: Int): Unit
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    @throws( ... )
  21. final def wait(arg0: Long): Unit
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    @throws( ... ) @native()

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