Class: Google::Apis::BigtableadminV2::ColumnFamily

Inherits:
Object
  • Object
show all
Includes:
Core::Hashable, Core::JsonObjectSupport
Defined in:
lib/google/apis/bigtableadmin_v2/classes.rb,
lib/google/apis/bigtableadmin_v2/representations.rb,
lib/google/apis/bigtableadmin_v2/representations.rb

Overview

A set of columns within a table which share a common configuration.

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(**args) ⇒ ColumnFamily

Returns a new instance of ColumnFamily.



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# File 'lib/google/apis/bigtableadmin_v2/classes.rb', line 791

def initialize(**args)
   update!(**args)
end

Instance Attribute Details

#gc_rule ⇒ Google::Apis::BigtableadminV2::GcRule

Rule for determining which cells to delete during garbage collection. Corresponds to the JSON property gcRule

Returns:



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# File 'lib/google/apis/bigtableadmin_v2/classes.rb', line 753

def gc_rule
  @gc_rule
end

#stats ⇒ Google::Apis::BigtableadminV2::ColumnFamilyStats

Approximate statistics related to a single column family within a table. This information may change rapidly, interpreting these values at a point in time may already preset out-of-date information. Everything below is approximate, unless otherwise specified. Corresponds to the JSON property stats

Returns:



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# File 'lib/google/apis/bigtableadmin_v2/classes.rb', line 761

def stats
  @stats
end

#value_type ⇒ Google::Apis::BigtableadminV2::Type

Type represents the type of data that is written to, read from, or stored in Bigtable. It is heavily based on the GoogleSQL standard to help maintain familiarity and consistency across products and features. For compatibility with Bigtable's existing untyped APIs, each Type includes an Encoding which describes how to convert to/from the underlying data. This might involve composing a series of steps into an "encoding chain," for example to convert from INT64 -> STRING -> raw bytes. In most cases, a "link" in the encoding chain will be based an on existing GoogleSQL conversion function like CAST. Each link in the encoding chain also defines the following properties: * Natural sort: Does the encoded value sort consistently with the original typed value? Note that Bigtable will always sort data based on the raw encoded value, not the decoded type. - Example: STRING values sort in the same order as their UTF-8 encodings. - Counterexample: Encoding INT64 to a fixed-width STRING does not preserve sort order when dealing with negative numbers. INT64(1) > INT64(-1), but STRING("-00001") > STRING("00001). - The overall encoding chain sorts naturally if every link does. * Self-delimiting: If we concatenate two encoded values, can we always tell where the first one ends and the second one begins? - Example: If we encode INT64s to fixed-width STRINGs, the first value will always contain exactly N digits, possibly preceded by a sign. - Counterexample: If we concatenate two UTF-8 encoded STRINGs, we have no way to tell where the first one ends. - The overall encoding chain is self-delimiting if any link is. * Compatibility: Which other systems have matching encoding schemes? For example, does this encoding have a GoogleSQL equivalent? HBase? Java? Corresponds to the JSON property valueType

Returns:



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# File 'lib/google/apis/bigtableadmin_v2/classes.rb', line 789

def value_type
  @value_type
end

Instance Method Details

#update!(**args) ⇒ Object

Update properties of this object



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# File 'lib/google/apis/bigtableadmin_v2/classes.rb', line 796

def update!(**args)
  @gc_rule = args[:gc_rule] if args.key?(:gc_rule)
  @stats = args[:stats] if args.key?(:stats)
  @value_type = args[:value_type] if args.key?(:value_type)
end