Reference documentation and code samples for the Compute V1 Client class 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.
Generated from protobuf message google.cloud.compute.v1.Expr
Methods
__construct
Constructor.
| Parameters | |
|---|---|
| Name | Description |
data |
array
Optional. Data for populating the Message object. |
↳ 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. |
↳ expression |
string
Textual representation of an expression in Common Expression Language syntax. |
↳ location |
string
Optional. String indicating the location of the expression for error reporting, e.g. a file name and a position in the file. |
↳ 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. |
getDescription
Optional. Description of the expression. This is a longer text which describes the expression, e.g. when hovered over it in a UI.
| Returns | |
|---|---|
| Type | Description |
string | |
hasDescription
clearDescription
setDescription
Optional. Description of the expression. This is a longer text which describes the expression, e.g. when hovered over it in a UI.
| Parameter | |
|---|---|
| Name | Description |
var |
string
|
| Returns | |
|---|---|
| Type | Description |
$this | |
getExpression
Textual representation of an expression in Common Expression Language syntax.
| Returns | |
|---|---|
| Type | Description |
string | |
hasExpression
clearExpression
setExpression
Textual representation of an expression in Common Expression Language syntax.
| Parameter | |
|---|---|
| Name | Description |
var |
string
|
| Returns | |
|---|---|
| Type | Description |
$this | |
getLocation
Optional. String indicating the location of the expression for error reporting, e.g. a file name and a position in the file.
| Returns | |
|---|---|
| Type | Description |
string | |
hasLocation
clearLocation
setLocation
Optional. String indicating the location of the expression for error reporting, e.g. a file name and a position in the file.
| Parameter | |
|---|---|
| Name | Description |
var |
string
|
| Returns | |
|---|---|
| Type | Description |
$this | |
getTitle
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 | |
|---|---|
| Type | Description |
string | |
hasTitle
clearTitle
setTitle
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.
| Parameter | |
|---|---|
| Name | Description |
var |
string
|
| Returns | |
|---|---|
| Type | Description |
$this | |