Module arrow_array::builder

Defines builders for the various array types

Structs

• BooleanBufferBuilder
  A builder for creating a boolean Buffer
• BooleanBuilder
  Array builder for fixed-width primitive types
• BufferBuilder
  Builder for creating a Buffer object.
• FixedSizeBinaryBuilder
  A fixed size binary array builder
• FixedSizeListBuilder
  Array builder for FixedSizeListArray
• GenericByteBuilder
  Array builder for GenericByteArray
• GenericByteDictionaryBuilder
  Generic array builder for DictionaryArray that stores generic byte values. For example to map a set of byte indices to String values. Note that the use of a HashMap here will not scale to very large arrays or result in an ordered dictionary.
• GenericByteRunBuilder
  Array builder for RunArray for String and Binary types.
• GenericListBuilder
  Array builder for GenericListArrays.
• MapBuilder
  Creates a new MapBuilder
• MapFieldNames
  Contains details of the mapping
• PrimitiveBuilder
  Array builder for fixed-width primitive types
• PrimitiveDictionaryBuilder
  Array builder for DictionaryArray. For example to map a set of byte indices to f32 values. Note that the use of a HashMap here will not scale to very large arrays or result in an ordered dictionary.
• PrimitiveRunBuilder
  Array builder for RunArray that encodes primitive values.
• StructBuilder
  Array builder for Struct types.
• UnionBuilder
  Builder type for creating a new UnionArray.

Traits

• ArrayBuilder
  Trait for dealing with different array builders at runtime

Functions

• make_builder
  Returns a builder with capacity capacity that corresponds to the datatype DataType This function is useful to construct arrays from an arbitrary vectors with known/expected schema.

Type Definitions

• BinaryBuilder
  A binary array builder with i32 offsets
• BinaryDictionaryBuilder
  Array builder for DictionaryArray that stores binary. For example to map a set of byte indices to binary values. Note that the use of a HashMap here will not scale to very large arrays or result in an ordered dictionary.
• BinaryRunBuilder
  Array builder for RunArray that encodes binary values(BinaryType).
• Date32BufferBuilder
  Buffer builder for 32-bit date type.
• Date32Builder
  A 32-bit date array builder.
• Date64BufferBuilder
  Buffer builder for 64-bit date type.
• Date64Builder
  A 64-bit date array builder.
• Decimal128Builder
  A decimal 128 array builder
• Decimal256Builder
  A decimal 256 array builder
• DurationMicrosecondBufferBuilder
  Buffer builder for elaspsed time of microseconds unit.
• DurationMicrosecondBuilder
  An elapsed time in microseconds array builder.
• DurationMillisecondBufferBuilder
  Buffer builder for elaspsed time of milliseconds unit.
• DurationMillisecondBuilder
  An elapsed time in milliseconds array builder.
• DurationNanosecondBufferBuilder
  Buffer builder for elaspsed time of nanoseconds unit.
• DurationNanosecondBuilder
  An elapsed time in nanoseconds array builder.
• DurationSecondBufferBuilder
  Buffer builder for elaspsed time of second unit.
• DurationSecondBuilder
  An elapsed time in seconds array builder.
• Float32BufferBuilder
  Buffer builder for 32-bit floating point type.
• Float32Builder
  A 32-bit floating point array builder.
• Float64BufferBuilder
  Buffer builder for 64-bit floating point type.
• Float64Builder
  A 64-bit floating point array builder.
• GenericBinaryBuilder
  Array builder for GenericBinaryArray
• GenericStringBuilder
  Array builder for GenericStringArray
• Int8BufferBuilder
  Buffer builder for signed 8-bit integer type.
• Int8Builder
  A signed 8-bit integer array builder.
• Int16BufferBuilder
  Buffer builder for signed 16-bit integer type.
• Int16Builder
  A signed 16-bit integer array builder.
• Int32BufferBuilder
  Buffer builder for signed 32-bit integer type.
• Int32Builder
  A signed 32-bit integer array builder.
• Int64BufferBuilder
  Buffer builder for signed 64-bit integer type.
• Int64Builder
  A signed 64-bit integer array builder.
• IntervalDayTimeBufferBuilder
  Buffer builder for “calendar” interval in days and milliseconds.
• IntervalDayTimeBuilder
  A “calendar” interval in days and milliseconds array builder.
• IntervalMonthDayNanoBufferBuilder
  Buffer builder “calendar” interval in months, days, and nanoseconds.
• IntervalMonthDayNanoBuilder
  A “calendar” interval in months, days, and nanoseconds array builder.
• IntervalYearMonthBufferBuilder
  Buffer builder for “calendar” interval in months.
• IntervalYearMonthBuilder
  A “calendar” interval in months array builder.
• LargeBinaryBuilder
  A binary array builder with i64 offsets
• LargeBinaryDictionaryBuilder
  Array builder for DictionaryArray that stores large binary. For example to map a set of byte indices to binary values. Note that the use of a HashMap here will not scale to very large arrays or result in an ordered dictionary.
• LargeBinaryRunBuilder
  Array builder for RunArray that encodes large binary values(LargeBinaryType). See documentation of BinaryRunBuilder for an example.
• LargeListBuilder
  Builder for LargeListArrays (i64 offsets)
• LargeStringBuilder
  A string array builder with i64 offsets
• LargeStringDictionaryBuilder
  Array builder for DictionaryArray that stores large Strings. For example to map a set of byte indices to String values. Note that the use of a HashMap here will not scale to very large arrays or result in an ordered dictionary.
• LargeStringRunBuilder
  Array builder for RunArray that encodes large strings (LargeUtf8Type). See StringRunBuilder for an example.
• ListBuilder
  Builder for ListArrays (i32 offsets)
• StringBuilder
  A string array builder with i32 offsets
• StringDictionaryBuilder
  Array builder for DictionaryArray that stores Strings. For example to map a set of byte indices to String values. Note that the use of a HashMap here will not scale to very large arrays or result in an ordered dictionary.
• StringRunBuilder
  Array builder for RunArray that encodes strings (Utf8Type).
• Time32MillisecondBufferBuilder
  Buffer builder for 32-bit elaspsed time since midnight of millisecond unit.
• Time32MillisecondBuilder
  A 32-bit elaspsed time in milliseconds array builder.
• Time32SecondBufferBuilder
  Buffer builder for 32-bit elaspsed time since midnight of second unit.
• Time32SecondBuilder
  A 32-bit elaspsed time in seconds array builder.
• Time64MicrosecondBufferBuilder
  Buffer builder for 64-bit elaspsed time since midnight of microsecond unit.
• Time64MicrosecondBuilder
  A 64-bit elaspsed time in microseconds array builder.
• Time64NanosecondBufferBuilder
  Buffer builder for 64-bit elaspsed time since midnight of nanosecond unit.
• Time64NanosecondBuilder
  A 64-bit elaspsed time in nanoseconds array builder.
• TimestampMicrosecondBufferBuilder
  Buffer builder for timestamp type of microsecond unit.
• TimestampMicrosecondBuilder
  A timestamp microsecond array builder.
• TimestampMillisecondBufferBuilder
  Buffer builder for timestamp type of millisecond unit.
• TimestampMillisecondBuilder
  A timestamp millisecond array builder.
• TimestampNanosecondBufferBuilder
  Buffer builder for timestamp type of nanosecond unit.
• TimestampNanosecondBuilder
  A timestamp nanosecond array builder.
• TimestampSecondBufferBuilder
  Buffer builder for timestamp type of second unit.
• TimestampSecondBuilder
  A timestamp second array builder.
• UInt8BufferBuilder
  Buffer builder for usigned 8-bit integer type.
• UInt8Builder
  An usigned 8-bit integer array builder.
• UInt16BufferBuilder
  Buffer builder for usigned 16-bit integer type.
• UInt16Builder
  An usigned 16-bit integer array builder.
• UInt32BufferBuilder
  Buffer builder for usigned 32-bit integer type.
• UInt32Builder
  An usigned 32-bit integer array builder.
• UInt64BufferBuilder
  Buffer builder for usigned 64-bit integer type.
• UInt64Builder
  An usigned 64-bit integer array builder.