class OptionIndex[T] extends Index[Option[T]]
Lifts an index of T into an index of Option[T] . The last element is None. Everything else is as you expect.
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- @SerialVersionUID()
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- OptionIndex
- Index
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- Iterable
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- IterableOnce
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Value Members
- final def !=(arg0: Any): Boolean
- Definition Classes
- AnyRef → Any
- final def ##: Int
- Definition Classes
- AnyRef → Any
- final def ++[B >: Option[T]](suffix: IterableOnce[B]): Iterable[B]
- Definition Classes
- IterableOps
- Annotations
- @inline()
- final def ==(arg0: Any): Boolean
- Definition Classes
- AnyRef → Any
- final def addString(b: StringBuilder): StringBuilder
- Definition Classes
- IterableOnceOps
- Annotations
- @inline()
- final def addString(b: StringBuilder, sep: String): StringBuilder
- Definition Classes
- IterableOnceOps
- Annotations
- @inline()
- def addString(b: StringBuilder, start: String, sep: String, end: String): StringBuilder
- Definition Classes
- IterableOnceOps
- def andThen[A](g: (Int) => A): (Option[T]) => A
- Definition Classes
- Function1
- Annotations
- @unspecialized()
- def apply(t: Option[T]): Int
Returns the int id of the given element (0-based) or -1 if not found in the index.
Returns the int id of the given element (0-based) or -1 if not found in the index. This method never changes the index (even in MutableIndex).
- Definition Classes
- OptionIndex → Index → Function1
- final def asInstanceOf[T0]: T0
- Definition Classes
- Any
- def className: String
- Attributes
- protected[this]
- Definition Classes
- Iterable
- def clone(): AnyRef
- Attributes
- protected[lang]
- Definition Classes
- AnyRef
- Annotations
- @throws(classOf[java.lang.CloneNotSupportedException]) @native() @IntrinsicCandidate()
- final def coll: OptionIndex.this.type
- Attributes
- protected
- Definition Classes
- Iterable → IterableOps
- def collect[B](pf: PartialFunction[Option[T], B]): Iterable[B]
- Definition Classes
- IterableOps → IterableOnceOps
- def collectFirst[B](pf: PartialFunction[Option[T], B]): Option[B]
- Definition Classes
- IterableOnceOps
- def compose[A](g: (A) => Option[T]): (A) => Int
- Definition Classes
- Function1
- Annotations
- @unspecialized()
- def concat[B >: Option[T]](suffix: IterableOnce[B]): Iterable[B]
- Definition Classes
- IterableOps
- def contains(t: Option[T]): Boolean
Returns true if this index contains the element t.
Returns true if this index contains the element t.
- Definition Classes
- Index
- def copyToArray[B >: Option[T]](xs: Array[B], start: Int, len: Int): Int
- Definition Classes
- IterableOnceOps
- def copyToArray[B >: Option[T]](xs: Array[B], start: Int): Int
- Definition Classes
- IterableOnceOps
- Annotations
- @deprecatedOverriding()
- def copyToArray[B >: Option[T]](xs: Array[B]): Int
- Definition Classes
- IterableOnceOps
- Annotations
- @deprecatedOverriding()
- def corresponds[B](that: IterableOnce[B])(p: (Option[T], B) => Boolean): Boolean
- Definition Classes
- IterableOnceOps
- def count(p: (Option[T]) => Boolean): Int
- Definition Classes
- IterableOnceOps
- lazy val defaultHashCode: Int
- Attributes
- protected
- Definition Classes
- Index
- def drop(n: Int): Iterable[Option[T]]
- Definition Classes
- IterableOps → IterableOnceOps
- def dropRight(n: Int): Iterable[Option[T]]
- Definition Classes
- IterableOps
- def dropWhile(p: (Option[T]) => Boolean): Iterable[Option[T]]
- Definition Classes
- IterableOps → IterableOnceOps
- def empty: Iterable[Option[T]]
- Definition Classes
- IterableFactoryDefaults → IterableOps
- final def eq(arg0: AnyRef): Boolean
- Definition Classes
- AnyRef
- def equals(other: Any): Boolean
- Definition Classes
- Index → AnyRef → Any
- def exists(p: (Option[T]) => Boolean): Boolean
- Definition Classes
- IterableOnceOps
- def filter(pred: (Option[T]) => Boolean): Iterable[Option[T]]
- Definition Classes
- IterableOps → IterableOnceOps
- def filterNot(pred: (Option[T]) => Boolean): Iterable[Option[T]]
- Definition Classes
- IterableOps → IterableOnceOps
- def find(p: (Option[T]) => Boolean): Option[Option[T]]
- Definition Classes
- IterableOnceOps
- def flatMap[B](f: (Option[T]) => IterableOnce[B]): Iterable[B]
- Definition Classes
- IterableOps → IterableOnceOps
- def flatten[B](implicit asIterable: (Option[T]) => IterableOnce[B]): Iterable[B]
- Definition Classes
- IterableOps → IterableOnceOps
- def fold[A1 >: Option[T]](z: A1)(op: (A1, A1) => A1): A1
- Definition Classes
- IterableOnceOps
- def foldLeft[B](z: B)(op: (B, Option[T]) => B): B
- Definition Classes
- IterableOnceOps
- def foldRight[B](z: B)(op: (Option[T], B) => B): B
- Definition Classes
- IterableOnceOps
- def forall(p: (Option[T]) => Boolean): Boolean
- Definition Classes
- IterableOnceOps
- def foreach[U](f: (Option[T]) => U): Unit
- Definition Classes
- IterableOnceOps
- def fromSpecific(coll: IterableOnce[Option[T]]): Iterable[Option[T]]
- Attributes
- protected
- Definition Classes
- IterableFactoryDefaults → IterableOps
- def get(i: Int): Option[T]
Returns an object at the given position or throws IndexOutOfBoundsException if it's not found.
Returns an object at the given position or throws IndexOutOfBoundsException if it's not found.
- Definition Classes
- OptionIndex → Index
- final def getClass(): Class[_ <: AnyRef]
- Definition Classes
- AnyRef → Any
- Annotations
- @native() @IntrinsicCandidate()
- def groupBy[K](f: (Option[T]) => K): Map[K, Iterable[Option[T]]]
- Definition Classes
- IterableOps
- def groupMap[K, B](key: (Option[T]) => K)(f: (Option[T]) => B): Map[K, Iterable[B]]
- Definition Classes
- IterableOps
- def groupMapReduce[K, B](key: (Option[T]) => K)(f: (Option[T]) => B)(reduce: (B, B) => B): Map[K, B]
- Definition Classes
- IterableOps
- def grouped(size: Int): Iterator[Iterable[Option[T]]]
- Definition Classes
- IterableOps
- def hashCode(): Int
- Definition Classes
- Index → AnyRef → Any
- def head: Option[T]
- Definition Classes
- IterableOps
- def headOption: Option[Option[T]]
- Definition Classes
- IterableOps
- def indexOf(t: Option[T]): Int
Override Iterable's linear-scan indexOf to use our apply method.
Override Iterable's linear-scan indexOf to use our apply method.
- Definition Classes
- Index
- def indexOpt(t: Option[T]): Option[Int]
Returns Some(i) if the object has been indexed, or None.
Returns Some(i) if the object has been indexed, or None.
- Definition Classes
- Index
- def init: Iterable[Option[T]]
- Definition Classes
- IterableOps
- def inits: Iterator[Iterable[Option[T]]]
- Definition Classes
- IterableOps
- def isEmpty: Boolean
- Definition Classes
- IterableOnceOps
- final def isInstanceOf[T0]: Boolean
- Definition Classes
- Any
- def isTraversableAgain: Boolean
- Definition Classes
- IterableOps → IterableOnceOps
- def iterableFactory: IterableFactory[Iterable]
- Definition Classes
- Iterable → IterableOps
- def iterator: Iterator[Option[T]]
- Definition Classes
- OptionIndex → IterableOnce
- def knownSize: Int
- Definition Classes
- IterableOnce
- def last: Option[T]
- Definition Classes
- IterableOps
- def lastOption: Option[Option[T]]
- Definition Classes
- IterableOps
- def lazyZip[B](that: Iterable[B]): LazyZip2[Option[T], B, OptionIndex.this.type]
- Definition Classes
- Iterable
- def map[B](f: (Option[T]) => B): Iterable[B]
- Definition Classes
- IterableOps → IterableOnceOps
- def max[B >: Option[T]](implicit ord: Ordering[B]): Option[T]
- Definition Classes
- IterableOnceOps
- def maxBy[B](f: (Option[T]) => B)(implicit cmp: Ordering[B]): Option[T]
- Definition Classes
- IterableOnceOps
- def maxByOption[B](f: (Option[T]) => B)(implicit cmp: Ordering[B]): Option[Option[T]]
- Definition Classes
- IterableOnceOps
- def maxOption[B >: Option[T]](implicit ord: Ordering[B]): Option[Option[T]]
- Definition Classes
- IterableOnceOps
- def min[B >: Option[T]](implicit ord: Ordering[B]): Option[T]
- Definition Classes
- IterableOnceOps
- def minBy[B](f: (Option[T]) => B)(implicit cmp: Ordering[B]): Option[T]
- Definition Classes
- IterableOnceOps
- def minByOption[B](f: (Option[T]) => B)(implicit cmp: Ordering[B]): Option[Option[T]]
- Definition Classes
- IterableOnceOps
- def minOption[B >: Option[T]](implicit ord: Ordering[B]): Option[Option[T]]
- Definition Classes
- IterableOnceOps
- final def mkString: String
- Definition Classes
- IterableOnceOps
- Annotations
- @inline()
- final def mkString(sep: String): String
- Definition Classes
- IterableOnceOps
- Annotations
- @inline()
- final def mkString(start: String, sep: String, end: String): String
- Definition Classes
- IterableOnceOps
- final def ne(arg0: AnyRef): Boolean
- Definition Classes
- AnyRef
- def newSpecificBuilder: Builder[Option[T], Iterable[Option[T]]]
- Attributes
- protected
- Definition Classes
- IterableFactoryDefaults → IterableOps
- def nonEmpty: Boolean
- Definition Classes
- IterableOnceOps
- Annotations
- @deprecatedOverriding()
- final def notify(): Unit
- Definition Classes
- AnyRef
- Annotations
- @native() @IntrinsicCandidate()
- final def notifyAll(): Unit
- Definition Classes
- AnyRef
- Annotations
- @native() @IntrinsicCandidate()
- def pairs: Iterator[(Option[T], Int)]
Returns the indexed items along with their indicies
Returns the indexed items along with their indicies
- Definition Classes
- OptionIndex → Index
- def partition(p: (Option[T]) => Boolean): (Iterable[Option[T]], Iterable[Option[T]])
- Definition Classes
- IterableOps
- def partitionMap[A1, A2](f: (Option[T]) => Either[A1, A2]): (Iterable[A1], Iterable[A2])
- Definition Classes
- IterableOps
- def product[B >: Option[T]](implicit num: Numeric[B]): B
- Definition Classes
- IterableOnceOps
- def reduce[B >: Option[T]](op: (B, B) => B): B
- Definition Classes
- IterableOnceOps
- def reduceLeft[B >: Option[T]](op: (B, Option[T]) => B): B
- Definition Classes
- IterableOnceOps
- def reduceLeftOption[B >: Option[T]](op: (B, Option[T]) => B): Option[B]
- Definition Classes
- IterableOnceOps
- def reduceOption[B >: Option[T]](op: (B, B) => B): Option[B]
- Definition Classes
- IterableOnceOps
- def reduceRight[B >: Option[T]](op: (Option[T], B) => B): B
- Definition Classes
- IterableOnceOps
- def reduceRightOption[B >: Option[T]](op: (Option[T], B) => B): Option[B]
- Definition Classes
- IterableOnceOps
- def reversed: Iterable[Option[T]]
- Attributes
- protected
- Definition Classes
- IterableOnceOps
- def scan[B >: Option[T]](z: B)(op: (B, B) => B): Iterable[B]
- Definition Classes
- IterableOps
- def scanLeft[B](z: B)(op: (B, Option[T]) => B): Iterable[B]
- Definition Classes
- IterableOps → IterableOnceOps
- def scanRight[B](z: B)(op: (Option[T], B) => B): Iterable[B]
- Definition Classes
- IterableOps
- def size: Int
Number of elements in this index.
Number of elements in this index.
- Definition Classes
- OptionIndex → Index → IterableOnceOps
- def sizeCompare(that: Iterable[_]): Int
- Definition Classes
- IterableOps
- def sizeCompare(otherSize: Int): Int
- Definition Classes
- IterableOps
- final def sizeIs: SizeCompareOps
- Definition Classes
- IterableOps
- Annotations
- @inline()
- def slice(from: Int, until: Int): Iterable[Option[T]]
- Definition Classes
- IterableOps → IterableOnceOps
- def sliding(size: Int, step: Int): Iterator[Iterable[Option[T]]]
- Definition Classes
- IterableOps
- def sliding(size: Int): Iterator[Iterable[Option[T]]]
- Definition Classes
- IterableOps
- def span(p: (Option[T]) => Boolean): (Iterable[Option[T]], Iterable[Option[T]])
- Definition Classes
- IterableOps → IterableOnceOps
- def splitAt(n: Int): (Iterable[Option[T]], Iterable[Option[T]])
- Definition Classes
- IterableOps → IterableOnceOps
- def stepper[S <: Stepper[_]](implicit shape: StepperShape[Option[T], S]): S
- Definition Classes
- IterableOnce
- def stringPrefix: String
- Attributes
- protected[this]
- Definition Classes
- Iterable
- Annotations
- @deprecatedOverriding()
- def sum[B >: Option[T]](implicit num: Numeric[B]): B
- Definition Classes
- IterableOnceOps
- final def synchronized[T0](arg0: => T0): T0
- Definition Classes
- AnyRef
- def tail: Iterable[Option[T]]
- Definition Classes
- IterableOps
- def tails: Iterator[Iterable[Option[T]]]
- Definition Classes
- IterableOps
- def take(n: Int): Iterable[Option[T]]
- Definition Classes
- IterableOps → IterableOnceOps
- def takeRight(n: Int): Iterable[Option[T]]
- Definition Classes
- IterableOps
- def takeWhile(p: (Option[T]) => Boolean): Iterable[Option[T]]
- Definition Classes
- IterableOps → IterableOnceOps
- def tapEach[U](f: (Option[T]) => U): Iterable[Option[T]]
- Definition Classes
- IterableOps → IterableOnceOps
- def to[C1](factory: Factory[Option[T], C1]): C1
- Definition Classes
- IterableOnceOps
- def toArray[B >: Option[T]](implicit arg0: ClassTag[B]): Array[B]
- Definition Classes
- IterableOnceOps
- final def toBuffer[B >: Option[T]]: Buffer[B]
- Definition Classes
- IterableOnceOps
- Annotations
- @inline()
- def toIndexedSeq: IndexedSeq[Option[T]]
- Definition Classes
- IterableOnceOps
- def toList: List[Option[T]]
- Definition Classes
- IterableOnceOps
- def toMap[K, V](implicit ev: <:<[Option[T], (K, V)]): Map[K, V]
- Definition Classes
- IterableOnceOps
- def toSeq: Seq[Option[T]]
- Definition Classes
- IterableOnceOps
- def toSet[B >: Option[T]]: Set[B]
- Definition Classes
- IterableOnceOps
- def toString(): String
- Definition Classes
- Index → Function1 → Iterable → AnyRef → Any
- def toVector: Vector[Option[T]]
- Definition Classes
- IterableOnceOps
- def transpose[B](implicit asIterable: (Option[T]) => Iterable[B]): Iterable[Iterable[B]]
- Definition Classes
- IterableOps
- def unapply(i: Int): Option[Option[T]]
Returns Some(t) if this int corresponds to some object, and None otherwise.
Returns Some(t) if this int corresponds to some object, and None otherwise.
- Definition Classes
- OptionIndex → Index
- def unzip[A1, A2](implicit asPair: (Option[T]) => (A1, A2)): (Iterable[A1], Iterable[A2])
- Definition Classes
- IterableOps
- def unzip3[A1, A2, A3](implicit asTriple: (Option[T]) => (A1, A2, A3)): (Iterable[A1], Iterable[A2], Iterable[A3])
- Definition Classes
- IterableOps
- def view: View[Option[T]]
- Definition Classes
- IterableOps
- 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])
- def withFilter(p: (Option[T]) => Boolean): WithFilter[Option[T], Iterable]
- Definition Classes
- IterableOps
- def zip[B](that: IterableOnce[B]): Iterable[(Option[T], B)]
- Definition Classes
- IterableOps
- def zipAll[A1 >: Option[T], B](that: Iterable[B], thisElem: A1, thatElem: B): Iterable[(A1, B)]
- Definition Classes
- IterableOps
- def zipWithIndex: Iterable[(Option[T], Int)]
- Definition Classes
- IterableOps → IterableOnceOps
- def |[U](right: Index[U]): EitherIndex[Option[T], U]
- Definition Classes
- Index
Deprecated Value Members
- def ++:[B >: Option[T]](that: IterableOnce[B]): Iterable[B]
- Definition Classes
- IterableOps
- Annotations
- @deprecated
- Deprecated
(Since version 2.13.0) Use ++ instead of ++: for collections of type Iterable
- final def /:[B](z: B)(op: (B, Option[T]) => B): B
- Definition Classes
- IterableOnceOps
- Annotations
- @deprecated @inline()
- Deprecated
(Since version 2.13.0) Use foldLeft instead of /:
- final def :\[B](z: B)(op: (Option[T], B) => B): B
- Definition Classes
- IterableOnceOps
- Annotations
- @deprecated @inline()
- Deprecated
(Since version 2.13.0) Use foldRight instead of :\
- def aggregate[B](z: => B)(seqop: (B, Option[T]) => B, combop: (B, B) => B): B
- Definition Classes
- IterableOnceOps
- Annotations
- @deprecated
- Deprecated
(Since version 2.13.0)
aggregate
is not relevant for sequential collections. UsefoldLeft(z)(seqop)
instead.
- def companion: IterableFactory[Iterable]
- Definition Classes
- IterableOps
- Annotations
- @deprecated @deprecatedOverriding() @inline()
- Deprecated
(Since version 2.13.0) Use iterableFactory instead
- final def copyToBuffer[B >: Option[T]](dest: Buffer[B]): Unit
- Definition Classes
- IterableOnceOps
- Annotations
- @deprecated @inline()
- Deprecated
(Since version 2.13.0) Use
dest ++= coll
instead
- def finalize(): Unit
- Attributes
- protected[lang]
- Definition Classes
- AnyRef
- Annotations
- @throws(classOf[java.lang.Throwable]) @Deprecated
- Deprecated
- def hasDefiniteSize: Boolean
- Definition Classes
- IterableOnceOps
- Annotations
- @deprecated
- Deprecated
(Since version 2.13.0) Check .knownSize instead of .hasDefiniteSize for more actionable information (see scaladoc for details)
- final def repr: Iterable[Option[T]]
- Definition Classes
- IterableOps
- Annotations
- @deprecated
- Deprecated
(Since version 2.13.0) Use coll instead of repr in a collection implementation, use the collection value itself from the outside
- def seq: OptionIndex.this.type
- Definition Classes
- Iterable
- Annotations
- @deprecated
- Deprecated
(Since version 2.13.0) Iterable.seq always returns the iterable itself
- final def toIterable: OptionIndex.this.type
- Definition Classes
- Iterable → IterableOps
- Annotations
- @deprecated
- Deprecated
(Since version 2.13.7) toIterable is internal and will be made protected; its name is similar to
toList
ortoSeq
, but it doesn't copy non-immutable collections
- final def toIterator: Iterator[Option[T]]
- Definition Classes
- IterableOnceOps
- Annotations
- @deprecated @inline()
- Deprecated
(Since version 2.13.0) Use .iterator instead of .toIterator
- final def toStream: Stream[Option[T]]
- Definition Classes
- IterableOnceOps
- Annotations
- @deprecated @inline()
- Deprecated
(Since version 2.13.0) Use .to(LazyList) instead of .toStream
- final def toTraversable: Traversable[Option[T]]
- Definition Classes
- IterableOps
- Annotations
- @deprecated
- Deprecated
(Since version 2.13.0) toTraversable is internal and will be made protected; its name is similar to
toList
ortoSeq
, but it doesn't copy non-immutable collections
- def view(from: Int, until: Int): View[Option[T]]
- Definition Classes
- IterableOps
- Annotations
- @deprecated
- Deprecated
(Since version 2.13.0) Use .view.slice(from, until) instead of .view(from, until)