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public
final
class
Expr
extends
GeneratedMessageV3
implements
ExprOrBuilder
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.
Protobuf type google.type.Expr
Inheritance
Object > AbstractMessageLite<MessageType,BuilderType> > AbstractMessage > GeneratedMessageV3 > ExprImplements
ExprOrBuilderStatic Fields
DESCRIPTION_FIELD_NUMBER
public
static
final
int
DESCRIPTION_FIELD_NUMBER
EXPRESSION_FIELD_NUMBER
public
static
final
int
EXPRESSION_FIELD_NUMBER
LOCATION_FIELD_NUMBER
public
static
final
int
LOCATION_FIELD_NUMBER
TITLE_FIELD_NUMBER
public
static
final
int
TITLE_FIELD_NUMBER
Static Methods
getDefaultInstance()
public
static
Expr
getDefaultInstance
()
getDescriptor()
public
static
final
Descriptors
.
Descriptor
getDescriptor
()
newBuilder()
public
static
Expr
.
Builder
newBuilder
()
newBuilder(Expr prototype)
public
static
Expr
.
Builder
newBuilder
(
Expr
prototype
)
parseDelimitedFrom(InputStream input)
public
static
Expr
parseDelimitedFrom
(
InputStream
input
)
parseDelimitedFrom(InputStream input, ExtensionRegistryLite extensionRegistry)
public
static
Expr
parseDelimitedFrom
(
InputStream
input
,
ExtensionRegistryLite
extensionRegistry
)
parseFrom(byte[] data)
public
static
Expr
parseFrom
(
byte
[]
data
)
data
byte
[]
parseFrom(byte[] data, ExtensionRegistryLite extensionRegistry)
public
static
Expr
parseFrom
(
byte
[]
data
,
ExtensionRegistryLite
extensionRegistry
)
parseFrom(ByteString data)
public
static
Expr
parseFrom
(
ByteString
data
)
parseFrom(ByteString data, ExtensionRegistryLite extensionRegistry)
public
static
Expr
parseFrom
(
ByteString
data
,
ExtensionRegistryLite
extensionRegistry
)
parseFrom(CodedInputStream input)
public
static
Expr
parseFrom
(
CodedInputStream
input
)
parseFrom(CodedInputStream input, ExtensionRegistryLite extensionRegistry)
public
static
Expr
parseFrom
(
CodedInputStream
input
,
ExtensionRegistryLite
extensionRegistry
)
parseFrom(InputStream input)
public
static
Expr
parseFrom
(
InputStream
input
)
parseFrom(InputStream input, ExtensionRegistryLite extensionRegistry)
public
static
Expr
parseFrom
(
InputStream
input
,
ExtensionRegistryLite
extensionRegistry
)
parseFrom(ByteBuffer data)
public
static
Expr
parseFrom
(
ByteBuffer
data
)
parseFrom(ByteBuffer data, ExtensionRegistryLite extensionRegistry)
public
static
Expr
parseFrom
(
ByteBuffer
data
,
ExtensionRegistryLite
extensionRegistry
)
parser()
public
static
Parser<Expr>
parser
()
Methods
equals(Object obj)
public
boolean
equals
(
Object
obj
)
getDefaultInstanceForType()
public
Expr
getDefaultInstanceForType
()
getDescription()
public
String
getDescription
()
Optional. Description of the expression. This is a longer text which describes the expression, e.g. when hovered over it in a UI.
string description = 3;
getDescriptionBytes()
public
ByteString
getDescriptionBytes
()
Optional. Description of the expression. This is a longer text which describes the expression, e.g. when hovered over it in a UI.
string description = 3;
getExpression()
public
String
getExpression
()
Textual representation of an expression in Common Expression Language syntax.
string expression = 1;
getExpressionBytes()
public
ByteString
getExpressionBytes
()
Textual representation of an expression in Common Expression Language syntax.
string expression = 1;
getLocation()
public
String
getLocation
()
Optional. String indicating the location of the expression for error reporting, e.g. a file name and a position in the file.
string location = 4;
getLocationBytes()
public
ByteString
getLocationBytes
()
Optional. String indicating the location of the expression for error reporting, e.g. a file name and a position in the file.
string location = 4;
getParserForType()
public
Parser<Expr>
getParserForType
()
getSerializedSize()
public
int
getSerializedSize
()
getTitle()
public
String
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.
string title = 2;
getTitleBytes()
public
ByteString
getTitleBytes
()
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.
string title = 2;
hashCode()
public
int
hashCode
()
internalGetFieldAccessorTable()
protected
GeneratedMessageV3
.
FieldAccessorTable
internalGetFieldAccessorTable
()
isInitialized()
public
final
boolean
isInitialized
()
newBuilderForType()
public
Expr
.
Builder
newBuilderForType
()
newBuilderForType(GeneratedMessageV3.BuilderParent parent)
protected
Expr
.
Builder
newBuilderForType
(
GeneratedMessageV3
.
BuilderParent
parent
)
newInstance(GeneratedMessageV3.UnusedPrivateParameter unused)
protected
Object
newInstance
(
GeneratedMessageV3
.
UnusedPrivateParameter
unused
)
toBuilder()
public
Expr
.
Builder
toBuilder
()
writeTo(CodedOutputStream output)
public
void
writeTo
(
CodedOutputStream
output
)
