enum Google::Cloud::BigQuery::JobConfiguration::Load::WriteDisposition

Defined in:

cloud/big_query.cr

Enum Members

WRITE_EMPTY = 0

Writes data to an empty table. If the table already contains data, the job fails.

WRITE_APPEND = 1

Appends data to the end of the table.

WRITE_TRUNCATE = 2

Overwrites the table data.

Instance Method Summary

Instance Method Detail

def to_json(json : JSON::Builder) #
Description copied from struct Enum

Serializes this enum member by name.

For non-flags enums, the serialization is a JSON string. The value is the member name (see #to_s) transformed with String#underscore.

enum Stages
  INITIAL
  SECOND_STAGE
end

Stages::INITIAL.to_json      # => %("initial")
Stages::SECOND_STAGE.to_json # => %("second_stage")

For flags enums, the serialization is a JSON array including every flagged member individually serialized in the same way as a member of a non-flags enum. None is serialized as an empty array, All as an array containing all members.

@[Flags]
enum Sides
  LEFT
  RIGHT
end

Sides::LEFT.to_json                  # => %(["left"])
(Sides::LEFT | Sides::RIGHT).to_json # => %(["left","right"])
Sides::All.to_json                   # => %(["left","right"])
Sides::None.to_json                  # => %([])

ValueConverter.to_json offers a different serialization strategy based on the member value.


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def write_append? #

Returns true if this enum value equals WRITE_APPEND


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def write_empty? #

Returns true if this enum value equals WRITE_EMPTY


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def write_truncate? #

Returns true if this enum value equals WRITE_TRUNCATE


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