class Cql::Model::Query::Statement
Public Class Methods
new(klass, client)
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Initialize instance variables common to all statements
@param [Class] klass Model
class @param [Cql::Client] client used to connect to Cassandra
# File lib/cql/model/query/statement.rb, line 9 def initialize(klass, client) @klass = klass @client = client || klass.cql_client @consistency = nil end
Public Instance Methods
consistency(consist)
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Specify consistency level to use when executing statemnt See www.datastax.com/docs/1.0/dml/data_consistency Defaults to :local_quorum
@param [String] consistency One of ‘ANY’, ‘ONE’, ‘QUORUM’, ‘LOCAL_QUORUM’, ‘EACH_QUORUM’, ‘ALL’ as of Cassandra 1.0 @return [String] consistency value
# File lib/cql/model/query/statement.rb, line 35 def consistency(consist) raise ArgumentError, "Cannot specify USING CONSISTENCY twice" unless @consistency.nil? @consistency = consist self end
Also aliased as: using_consistency
execute()
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Execute this CQL statement. Return value and parameters vary for each derived class. @see SelectStatement#execute
@see InsertStatement#execute @see UpdateStatement#execute
# File lib/cql/model/query/statement.rb, line 25 def execute raise NotImplementedError, "Subclass responsibility" end
to_s()
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Build a string representation of this CQL statement, suitable for execution by a CQL client. @return [String]
# File lib/cql/model/query/statement.rb, line 17 def to_s raise NotImplementedError, "Subclass responsibility" end