Class: Cassanity::ArgumentGenerators::Batch
- Inherits:
-
Object
- Object
- Cassanity::ArgumentGenerators::Batch
- Defined in:
- lib/cassanity/argument_generators/batch.rb
Constant Summary collapse
- Commands =
Private: Map of command to argument generator
{ insert: ColumnFamilyInsert.new, update: ColumnFamilyUpdate.new, delete: ColumnFamilyDelete.new, }
Instance Method Summary collapse
-
#call(args = {}) ⇒ Object
Internal.
-
#initialize(args = {}) ⇒ Batch
constructor
Internal.
Constructor Details
#initialize(args = {}) ⇒ Batch
Internal
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# File 'lib/cassanity/argument_generators/batch.rb', line 15 def initialize(args = {}) @using_clause = args.fetch(:using_clause) { UsingClause.new } @commands = args.fetch(:commands) { Commands } end |
Instance Method Details
#call(args = {}) ⇒ Object
Internal
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# File 'lib/cassanity/argument_generators/batch.rb', line 21 def call(args = {}) using = args[:using] modifications_argument = args.fetch(:modifications) { [] } variables = [] cql = "BEGIN BATCH" using_cql, *using_variables = @using_clause.call(using: using) cql << using_cql variables.concat(using_variables) modifications = [] modifications_argument.each do |modification| command_name, command_arguments = modification command = @commands.fetch(command_name) modification_cql, *modification_variables = command.call(command_arguments) modifications << modification_cql variables.concat(modification_variables) end unless modifications.empty? cql << " #{modifications.join(' ')}" end cql << " APPLY BATCH" [cql, *variables] end |