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Reference documentation and code samples for the Vertex AI V1 API class Google::Type::Expr.
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.
Inherits
- Object
Extended By
- Google::Protobuf::MessageExts::ClassMethods
Includes
- Google::Protobuf::MessageExts
Methods
#description
def description() -> ::String
Returns
- (::String) — Optional. Description of the expression. This is a longer text which describes the expression, e.g. when hovered over it in a UI.
#description=
def description=(value) -> ::String
Parameter
- value (::String) — Optional. Description of the expression. This is a longer text which describes the expression, e.g. when hovered over it in a UI.
Returns
- (::String) — Optional. Description of the expression. This is a longer text which describes the expression, e.g. when hovered over it in a UI.
#expression
def expression() -> ::String
Returns
- (::String) — Textual representation of an expression in Common Expression Language syntax.
#expression=
def expression=(value) -> ::String
Parameter
- value (::String) — Textual representation of an expression in Common Expression Language syntax.
Returns
- (::String) — Textual representation of an expression in Common Expression Language syntax.
#location
def location() -> ::String
Returns
- (::String) — Optional. String indicating the location of the expression for error reporting, e.g. a file name and a position in the file.
#location=
def location=(value) -> ::String
Parameter
- value (::String) — Optional. String indicating the location of the expression for error reporting, e.g. a file name and a position in the file.
Returns
- (::String) — Optional. String indicating the location of the expression for error reporting, e.g. a file name and a position in the file.
#title
def title() -> ::String
Returns
- (::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.
#title=
def title=(value) -> ::String
Parameter
- value (::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.
Returns
- (::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.