Class: Couchbase::Options::Analytics

Inherits:
Base
  • Object
show all
Defined in:
lib/couchbase/options.rb,
/Users/sergey.auseyau/code/couchbase-ruby-client/lib/couchbase/options.rb more...

Overview

Options for Cluster#analytics_query

Instance Attribute Summary collapse

Attributes inherited from Base

#client_context, #parent_span, #retry_strategy, #timeout

Instance Method Summary collapse

Constructor Details

#initialize(client_context_id: nil, scan_consistency: nil, readonly: false, priority: nil, transcoder: JsonTranscoder.new, positional_parameters: nil, named_parameters: nil, timeout: nil, retry_strategy: nil, client_context: nil, parent_span: nil) {|self| ... } ⇒ Analytics

Note:

Either positional_parameters or named_parameters may be specified.

Creates new instance of options for Cluster#analytics_query

Parameters:

  • client_context_id (String) (defaults to: nil) —

    provides a custom client context ID for this query

  • scan_consistency (Symbol) (defaults to: nil) —

    specifies level of consistency for the query

    :not_bounded

    The index will return whatever state it has to the analytics query engine at the time of query.

    This is the default (for single-statement requests). No timestamp vector is used in the index scan. This is also the fastest mode, because we avoid the cost of obtaining the vector, and we also avoid any wait for the index

    :request_plus

    The index will wait until all mutations have been processed at the time of request before being processed in the analytics query engine.

    This implements strong consistency per request. Before processing the request, a current vector is obtained. The vector is used as a lower bound for the statements in the request.

  • readonly (Boolean) (defaults to: false) —

    allows explicitly marking a query as being readonly and not mutating any documents on the server side.

  • priority (Boolean) (defaults to: nil) —

    allows to give certain requests higher priority than others

  • transcoder (JsonTranscoder) (defaults to: JsonTranscoder.new) —

    to decode rows

  • positional_parameters (Array<#to_json>, nil) (defaults to: nil) —

    parameters to be used as substitution for numbered macros like $1, $2 in query string

  • named_parameters (Hash<String => #to_json>, nil) (defaults to: nil) —

    parameters to be used as substitution for named macros like $name in query string

  • timeout (Integer, #in_milliseconds, nil) (defaults to: nil)
  • retry_strategy (Proc, nil) (defaults to: nil) —

    the custom retry strategy, if set

  • client_context (Hash, nil) (defaults to: nil) —

    the client context data, if set

  • parent_span (Span, nil) (defaults to: nil) —

    if set holds the parent span, that should be used for this request

Yield Parameters:

Raises:

  • (ArgumentError)
[View source]

1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
 
# File 'lib/couchbase/options.rb', line 1203

def initialize(client_context_id: nil,
               scan_consistency: nil,
               readonly: false,
               priority: nil,
               transcoder: JsonTranscoder.new,
               positional_parameters: nil,
               named_parameters: nil,
               timeout: nil,
               retry_strategy: nil,
               client_context: nil,
               parent_span: nil)
  raise ArgumentError, "Cannot pass positional and named parameters at the same time" if positional_parameters && named_parameters

  super(timeout: timeout, retry_strategy: retry_strategy, client_context: client_context, parent_span: parent_span)
  @client_context_id = client_context_id
  @scan_consistency = scan_consistency
  @readonly = readonly
  @priority = priority
  @transcoder = transcoder
  @positional_parameters = positional_parameters
  @named_parameters = named_parameters
  @raw_parameters = {}
  yield self if block_given?
end

Instance Attribute Details

#client_context_id ⇒ String

Returns:

  • (String) 

1164
1165
1166
 
# File 'lib/couchbase/options.rb', line 1164

def client_context_id
  @client_context_id
end

#priority ⇒ Boolean

Returns:

  • (Boolean) 

1167
1168
1169
 
# File 'lib/couchbase/options.rb', line 1167

def priority
  @priority
end

#readonly ⇒ Boolean

Returns:

  • (Boolean) 

1166
1167
1168
 
# File 'lib/couchbase/options.rb', line 1166

def readonly
  @readonly
end

#scan_consistency ⇒ Symbol

Returns:

  • (Symbol) 

1165
1166
1167
 
# File 'lib/couchbase/options.rb', line 1165

def scan_consistency
  @scan_consistency
end

#transcoder ⇒ JsonTranscoder, #decode(String)

Returns:


1168
1169
1170
 
# File 'lib/couchbase/options.rb', line 1168

def transcoder
  @transcoder
end

Instance Method Details

#named_parameters(named) ⇒ Object

Sets named parameters for the query

Parameters:

  • named (Hash) —

    the key/value map of the parameters to substitute in the statement

[View source]

1239
1240
1241
1242
 
# File 'lib/couchbase/options.rb', line 1239

def named_parameters(named)
  @named_parameters = named
  @positional_parameters = nil
end

#positional_parameters(positional) ⇒ Object

Sets positional parameters for the query

Parameters:

  • positional (Array) —

    the list of parameters that have to be substituted in the statement

[View source]

1231
1232
1233
1234
 
# File 'lib/couchbase/options.rb', line 1231

def positional_parameters(positional)
  @positional_parameters = positional
  @named_parameters = nil
end

#raw(key, value) ⇒ Object

Allows providing custom JSON key/value pairs for advanced usage

Parameters:

  • key (String) —

    the parameter name (key of the JSON property)

  • value (Object) —

    the parameter value (value of the JSON property)

[View source]

1248
1249
1250
 
# File 'lib/couchbase/options.rb', line 1248

def raw(key, value)
  @raw_parameters[key] = JSON.generate(value)
end