Class: CassandraCQL::ColumnFamily

Inherits:
Object
  • Object
show all
Defined in:
lib/cassandra-cql/schema.rb

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(cf_def) ⇒ ColumnFamily

Returns a new instance of ColumnFamily.



54
55
56
 
# File 'lib/cassandra-cql/schema.rb', line 54

def initialize(cf_def)
  @cf_def = cf_def
end

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(method, *args, &block) ⇒ Object 



58
59
60
61
62
63
64
 
# File 'lib/cassandra-cql/schema.rb', line 58

def method_missing(method, *args, &block)
  if @cf_def.respond_to?(method)
    @cf_def.send(method)
  else
    super(method, *args, &block)
  end
end

Instance Attribute Details

#cf_def ⇒ Object (readonly)

Returns the value of attribute cf_def.



52
53
54
 
# File 'lib/cassandra-cql/schema.rb', line 52

def cf_def
  @cf_def
end

Class Method Details

.cast(value, type) ⇒ Object 



78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
 
# File 'lib/cassandra-cql/schema.rb', line 78

def self.cast(value, type)
  return nil if value.nil?

  if type =~ /^(List|Set|Map)Type\((.+)\)$/
    collection_type, value_type = $1, $2
    case collection_type
    when 'List'
      CassandraCQL::Collections::List.cast(value) do |element|
        cast(element, value_type)
      end
    when 'Set'
      CassandraCQL::Collections::Set.cast(value) do |element|
        cast(element, value_type)
      end
    when 'Map'
      key_type, map_value_type = value_type.split(',')
      CassandraCQL::Collections::Map.cast(value) do |key, element|
        [cast(key, key_type), cast(element, map_value_type)]
      end
    end
  elsif CassandraCQL::Types.const_defined?(type)
    CassandraCQL::Types.const_get(type).cast(value)
  else
    CassandraCQL::Types::AbstractType.cast(value)
  end
end

Instance Method Details

#columns ⇒ Object 



66
67
68
69
70
71
72
73
74
75
76
 
# File 'lib/cassandra-cql/schema.rb', line 66

def columns
  return @columns if @columns

  @columns = Hash.new(default_validation_class)
  @cf_def.column_metadata.each do |col|
    @columns[col.name] = col.validation_class
  end
  @columns[key_alias] = key_validation_class

  @columns
end

#id ⇒ Object 



113
114
115
 
# File 'lib/cassandra-cql/schema.rb', line 113

def id
  @cf_def.id
end

#name ⇒ Object 



105
106
107
 
# File 'lib/cassandra-cql/schema.rb', line 105

def name
  @cf_def.name
end

#standard? ⇒ Boolean

Returns:

  • (Boolean) 


117
118
119
 
# File 'lib/cassandra-cql/schema.rb', line 117

def standard?
  type == 'Standard'
end

#super? ⇒ Boolean

Returns:

  • (Boolean) 


121
122
123
 
# File 'lib/cassandra-cql/schema.rb', line 121

def super?
  type == 'Super'
end

#type ⇒ Object 



109
110
111
 
# File 'lib/cassandra-cql/schema.rb', line 109

def type
  @cf_def.column_type
end