Class: Google::Apis::SpannerV1::Expr

Inherits:
Object
  • Object
show all
Includes:
Core::Hashable, Core::JsonObjectSupport
Defined in:
lib/google/apis/spanner_v1/classes.rb,
lib/google/apis/spanner_v1/representations.rb,
lib/google/apis/spanner_v1/representations.rb

Overview

Represents a textual expression in the Common Expression Language (CEL) syntax. CEL is a C-like expression language. The syntax and semantics of CEL are documented at https://github.com/google/cel-spec. Example (Comparison): title: "Summary size limit" description: "Determines if a summary is less than 100 chars" expression: "document.summary.size() < 100" Example (Equality): title: " Requestor is owner" description: "Determines if requestor is the document owner" expression: "document.owner == request.auth.claims.email" Example ( Logic): title: "Public documents" description: "Determine whether the document should be publicly visible" expression: "document.type != 'private' && document.type != 'internal'" Example (Data Manipulation): title: "Notification string" description: "Create a notification string with a timestamp." expression: "'New message received at ' + string(document.create_time)" The exact variables and functions that may be referenced within an expression are determined by the service that evaluates it. See the service documentation for additional information.

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(**args) ⇒ Expr

Returns a new instance of Expr.



1479
1480
1481
 
# File 'lib/google/apis/spanner_v1/classes.rb', line 1479

def initialize(**args)
   update!(**args)
end

Instance Attribute Details

#description ⇒ String

Optional. Description of the expression. This is a longer text which describes the expression, e.g. when hovered over it in a UI. Corresponds to the JSON property description

Returns:

  • (String) 


1460
1461
1462
 
# File 'lib/google/apis/spanner_v1/classes.rb', line 1460

def description
  @description
end

#expression ⇒ String

Textual representation of an expression in Common Expression Language syntax. Corresponds to the JSON property expression

Returns:

  • (String) 


1465
1466
1467
 
# File 'lib/google/apis/spanner_v1/classes.rb', line 1465

def expression
  @expression
end

#location ⇒ String

Optional. String indicating the location of the expression for error reporting, e.g. a file name and a position in the file. Corresponds to the JSON property location

Returns:

  • (String) 


1471
1472
1473
 
# File 'lib/google/apis/spanner_v1/classes.rb', line 1471

def location
  @location
end

#title ⇒ String

Optional. Title for the expression, i.e. a short string describing its purpose. This can be used e.g. in UIs which allow to enter the expression. Corresponds to the JSON property title

Returns:

  • (String) 


1477
1478
1479
 
# File 'lib/google/apis/spanner_v1/classes.rb', line 1477

def title
  @title
end

Instance Method Details

#update!(**args) ⇒ Object

Update properties of this object



1484
1485
1486
1487
1488
1489
 
# File 'lib/google/apis/spanner_v1/classes.rb', line 1484

def update!(**args)
  @description = args[:description] if args.key?(:description)
  @expression = args[:expression] if args.key?(:expression)
  @location = args[:location] if args.key?(:location)
  @title = args[:title] if args.key?(:title)
end