class Azure::Table::Query

Attributes

fields[R]
filters[R]
next_partition_key[R]
next_row_key[R]
partition_key[R]
row_key[R]
table[R]
table_service[R]
top_n[R]

Public Class Methods

new(table="", partition=nil, row=nil, &block) click to toggle source
# File lib/azure/table/query.rb, line 21
def initialize(table="", partition=nil, row=nil, &block)
  @table = table
  @partition_key = partition
  @row_key = row
  @fields = []
  @filters = []
  @top_n = nil
  @table_service = Azure::Table::TableService.new
  self.instance_eval(&block) if block_given?
end

Public Instance Methods

_build_filter_string() click to toggle source
# File lib/azure/table/query.rb, line 99
def _build_filter_string
  result = ""
  clauses = []
  filters.each { |f|
    clauses.push "#{f[0].to_s} #{f[1].to_s} #{Azure::Table::EdmType.serialize_query_value(f[2])}"
  }
  return nil if clauses.length == 0

  result << clauses.join(" and ")
  result
end
execute() click to toggle source
# File lib/azure/table/query.rb, line 85
def execute
  @table_service.query_entities(@table, {
    :partition_key => @partition_key,
    :row_key => @row_key,
    :select => @fields.map{ |f| f.to_s },
    :filter => _build_filter_string,
    :top => (@top_n ? @top_n.to_i : @top_n),
    :continuation_token => {
      :next_partition_key => @next_partition_key,
      :next_row_key => @next_row_key
    }
  })
end
from(table_name) click to toggle source
# File lib/azure/table/query.rb, line 45
def from(table_name)
  @table = table_name
  self
end
next_partition(next_partition_key) click to toggle source
# File lib/azure/table/query.rb, line 75
def next_partition(next_partition_key)
  @next_partition_key = next_partition_key
  self
end
next_row(next_row_key) click to toggle source
# File lib/azure/table/query.rb, line 80
def next_row(next_row_key)
  @next_row_key = next_row_key
  self
end
partition(partition_key) click to toggle source
# File lib/azure/table/query.rb, line 50
def partition(partition_key)
  @partition_key = partition_key
  self
end
row(row_key) click to toggle source
# File lib/azure/table/query.rb, line 55
def row(row_key)
  @row_key = row_key
  self
end
select(*p) click to toggle source
# File lib/azure/table/query.rb, line 60
def select(*p)
  @fields.concat(p)
  self
end
top(n) click to toggle source
# File lib/azure/table/query.rb, line 70
def top(n)
  @top_n = n
  self
end
where(*p) click to toggle source
# File lib/azure/table/query.rb, line 65
def where(*p)
  @filters.push(p)
  self
end