Strict, finite sequence of values that allows index-based random access of elements.
Strict, finite sequence of values that allows index-based random access of elements.
Chunks can be created from a variety of collection types using methods on the Chunk companion
(e.g., Chunk.vector, Chunk.seq, Chunk.array). Additionally, the Chunk companion
defines a subtype of Chunk for each primitive type, using an unboxed primitive array.
To work with unboxed arrays, use methods like toBytes to convert a Chunk[Byte] to a Chunk.Bytes
and then access the array directly.
The operations on Chunk are all defined strictly. For example, c.map(f).map(g).map(h) results in
intermediate chunks being created (1 per call to map).
- Companion
- object
Value members
Abstract methods
Returns the element at the specified index. Throws if index is < 0 or >= size.
Returns the element at the specified index. Throws if index is < 0 or >= size.
Copies the elements of this chunk in to the specified array at the specified start index.
Copies the elements of this chunk in to the specified array at the specified start index.
Concrete methods
More efficient version of filter(pf.isDefinedAt).map(pf).
More efficient version of filter(pf.isDefinedAt).map(pf).
Returns a chunk that has only the elements that satisfy the supplied predicate.
Returns a chunk that has only the elements that satisfy the supplied predicate.
Returns the first element for which the predicate returns true or None if no elements satisfy the predicate.
Returns the first element for which the predicate returns true or None if no elements satisfy the predicate.
Maps f over the elements of this chunk and concatenates the result.
Maps f over the elements of this chunk and concatenates the result.
Returns true if the predicate passes for all elements.
Returns true if the predicate passes for all elements.
Invokes the supplied function for each element of this chunk.
Invokes the supplied function for each element of this chunk.
Returns the index of the first element which passes the specified predicate (i.e., p(i) == true)
or None if no elements pass the predicate.
Returns the index of the first element which passes the specified predicate (i.e., p(i) == true)
or None if no elements pass the predicate.
Creates an iterator that iterates the elements of this chunk. The returned iterator is not thread safe.
Creates an iterator that iterates the elements of this chunk. The returned iterator is not thread safe.
Returns true if this chunk is known to have elements of type B.
This is determined by checking if the chunk type mixes in Chunk.KnownElementType.
Returns true if this chunk is known to have elements of type B.
This is determined by checking if the chunk type mixes in Chunk.KnownElementType.
Creates a new chunk by applying f to each element in this chunk.
Creates a new chunk by applying f to each element in this chunk.
Maps the supplied stateful function over each element, outputting the final state and the accumulated outputs.
The first invocation of f uses init as the input state value. Each successive invocation uses
the output state of the previous invocation.
Maps the supplied stateful function over each element, outputting the final state and the accumulated outputs.
The first invocation of f uses init as the input state value. Each successive invocation uses
the output state of the previous invocation.
Creates an iterator that iterates the elements of this chunk in reverse order. The returned iterator is not thread safe.
Creates an iterator that iterates the elements of this chunk in reverse order. The returned iterator is not thread safe.
Like foldLeft but emits each intermediate result of f.
Like foldLeft but emits each intermediate result of f.
Like scanLeft except the final element is emitted as a standalone value instead of as
the last element of the accumulated chunk.
Like scanLeft except the final element is emitted as a standalone value instead of as
the last element of the accumulated chunk.
Equivalent to val b = a.scanLeft(z)(f); val (c, carry) = b.splitAt(b.size - 1).
Splits this chunk in to two chunks at the specified index.
Splits this chunk in to two chunks at the specified index.
Converts this chunk to a Chunk.Booleans, allowing access to the underlying array of elements.
If this chunk is already backed by an unboxed array of booleans, this method runs in constant time.
Otherwise, this method will copy of the elements of this chunk in to a single array.
Converts this chunk to a Chunk.Booleans, allowing access to the underlying array of elements.
If this chunk is already backed by an unboxed array of booleans, this method runs in constant time.
Otherwise, this method will copy of the elements of this chunk in to a single array.
Converts this chunk to a Chunk.Bytes, allowing access to the underlying array of elements.
If this chunk is already backed by an unboxed array of bytes, this method runs in constant time.
Otherwise, this method will copy of the elements of this chunk in to a single array.
Converts this chunk to a Chunk.Bytes, allowing access to the underlying array of elements.
If this chunk is already backed by an unboxed array of bytes, this method runs in constant time.
Otherwise, this method will copy of the elements of this chunk in to a single array.
Converts this chunk to a Chunk.Doubles, allowing access to the underlying array of elements.
If this chunk is already backed by an unboxed array of doubles, this method runs in constant time.
Otherwise, this method will copy of the elements of this chunk in to a single array.
Converts this chunk to a Chunk.Doubles, allowing access to the underlying array of elements.
If this chunk is already backed by an unboxed array of doubles, this method runs in constant time.
Otherwise, this method will copy of the elements of this chunk in to a single array.
Converts this chunk to a Chunk.Floats, allowing access to the underlying array of elements.
If this chunk is already backed by an unboxed array of doubles, this method runs in constant time.
Otherwise, this method will copy of the elements of this chunk in to a single array.
Converts this chunk to a Chunk.Floats, allowing access to the underlying array of elements.
If this chunk is already backed by an unboxed array of doubles, this method runs in constant time.
Otherwise, this method will copy of the elements of this chunk in to a single array.
Converts this chunk to a Chunk.Ints, allowing access to the underlying array of elements.
If this chunk is already backed by an unboxed array of bytes, this method runs in constant time.
Otherwise, this method will copy of the elements of this chunk in to a single array.
Converts this chunk to a Chunk.Ints, allowing access to the underlying array of elements.
If this chunk is already backed by an unboxed array of bytes, this method runs in constant time.
Otherwise, this method will copy of the elements of this chunk in to a single array.
Converts this chunk to a Chunk.Longs, allowing access to the underlying array of elements.
If this chunk is already backed by an unboxed array of longs, this method runs in constant time.
Otherwise, this method will copy of the elements of this chunk in to a single array.
Converts this chunk to a Chunk.Longs, allowing access to the underlying array of elements.
If this chunk is already backed by an unboxed array of longs, this method runs in constant time.
Otherwise, this method will copy of the elements of this chunk in to a single array.
Converts this chunk to a Chunk.Shorts, allowing access to the underlying array of elements.
If this chunk is already backed by an unboxed array of bytes, this method runs in constant time.
Otherwise, this method will copy of the elements of this chunk in to a single array.
Converts this chunk to a Chunk.Shorts, allowing access to the underlying array of elements.
If this chunk is already backed by an unboxed array of bytes, this method runs in constant time.
Otherwise, this method will copy of the elements of this chunk in to a single array.
Zips this chunk the the supplied chunk, returning a chunk of tuples.
Zips this chunk the the supplied chunk, returning a chunk of tuples.
Zips this chunk with the supplied chunk, passing each pair to f, resulting in
an output chunk.
Zips this chunk with the supplied chunk, passing each pair to f, resulting in
an output chunk.
Zips the elements of the input chunk with its indices, and returns the new chunk.
Zips the elements of the input chunk with its indices, and returns the new chunk.
- Example
scala> Chunk("The", "quick", "brown", "fox").zipWithIndex.toList res0: List[(String, Int)] = List((The,0), (quick,1), (brown,2), (fox,3))