Class: Iceberg::TableDefinition

Inherits:
Object
  • Object
show all
Defined in:
lib/iceberg/table_definition.rb

Constant Summary collapse

TYPES = 
%w[
  boolean int long float double decimal date time
  timestamp timestamptz timestamp_nano timestamptz_nano
  string uuid fixed binary
]
TYPE_ALIASES = 
{
  "integer" => "int",
  "bigint" => "long"
}

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ TableDefinition

Returns a new instance of TableDefinition.



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# File 'lib/iceberg/table_definition.rb', line 16

def initialize
  @fields = []
end

Instance Attribute Details

#fields ⇒ Object (readonly)

Returns the value of attribute fields.



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# File 'lib/iceberg/table_definition.rb', line 14

def fields
  @fields
end

Instance Method Details

#column(name, type, null: true, default: nil, comment: nil, limit: nil, precision: nil, scale: nil) ⇒ Object 



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# File 'lib/iceberg/table_definition.rb', line 26

def column(name, type, null: true, default: nil, comment: nil, limit: nil, precision: nil, scale: nil)
  unless type.is_a?(Type)
    type = type.to_s
    type =
      case TYPE_ALIASES.fetch(type, type)
      when "boolean"
        BooleanType.new
      when "int"
        IntType.new
      when "long"
        LongType.new
      when "float"
        FloatType.new
      when "double"
        DoubleType.new
      when "decimal"
        DecimalType.new(precision, scale)
      when "date"
        DateType.new
      when "time"
        TimeType.new
      when "timestamp"
        TimestampType.new
      when "timestamptz"
        TimestamptzType.new
      when "timestamp_nano"
        TimestampNanoType.new
      when "timestamptz_nano"
        TimestamptzNanoType.new
      when "string"
        StringType.new
      when "uuid"
        UUIDType.new
      when "fixed"
        FixedType.new(limit)
      when "binary"
        BinaryType.new
      else
        type
      end
  end

  @fields << NestedField.new(
    field_id: @fields.size + 1,
    name: name.to_s,
    field_type: type,
    required: !null,
    doc: comment,
    # no need for initial default (and not supported until v3)
    write_default: default
  )
end