public final class Expr extends GeneratedMessageV3 implements ExprOrBuilderRepresents 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| Field Value | |
|---|---|
| Type | Description |
int | |
EXPRESSION_FIELD_NUMBER
public static final int EXPRESSION_FIELD_NUMBER| Field Value | |
|---|---|
| Type | Description |
int | |
LOCATION_FIELD_NUMBER
public static final int LOCATION_FIELD_NUMBER| Field Value | |
|---|---|
| Type | Description |
int | |
TITLE_FIELD_NUMBER
public static final int TITLE_FIELD_NUMBER| Field Value | |
|---|---|
| Type | Description |
int | |
Static Methods
getDefaultInstance()
public static Expr getDefaultInstance()| Returns | |
|---|---|
| Type | Description |
Expr | |
getDescriptor()
public static final Descriptors.Descriptor getDescriptor()| Returns | |
|---|---|
| Type | Description |
Descriptor | |
newBuilder()
public static Expr.Builder newBuilder()| Returns | |
|---|---|
| Type | Description |
Expr.Builder | |
newBuilder(Expr prototype)
public static Expr.Builder newBuilder(Expr prototype)| Parameter | |
|---|---|
| Name | Description |
prototype | Expr |
| Returns | |
|---|---|
| Type | Description |
Expr.Builder | |
parseDelimitedFrom(InputStream input)
public static Expr parseDelimitedFrom(InputStream input)| Parameter | |
|---|---|
| Name | Description |
input | InputStream |
| Returns | |
|---|---|
| Type | Description |
Expr | |
| Exceptions | |
|---|---|
| Type | Description |
IOException | |
parseDelimitedFrom(InputStream input, ExtensionRegistryLite extensionRegistry)
public static Expr parseDelimitedFrom(InputStream input, ExtensionRegistryLite extensionRegistry)| Parameters | |
|---|---|
| Name | Description |
input | InputStream |
extensionRegistry | ExtensionRegistryLite |
| Returns | |
|---|---|
| Type | Description |
Expr | |
| Exceptions | |
|---|---|
| Type | Description |
IOException | |
parseFrom(byte[] data)
public static Expr parseFrom(byte[] data)| Parameter | |
|---|---|
| Name | Description |
data | byte[] |
| Returns | |
|---|---|
| Type | Description |
Expr | |
| Exceptions | |
|---|---|
| Type | Description |
InvalidProtocolBufferException | |
parseFrom(byte[] data, ExtensionRegistryLite extensionRegistry)
public static Expr parseFrom(byte[] data, ExtensionRegistryLite extensionRegistry)| Parameters | |
|---|---|
| Name | Description |
data | byte[] |
extensionRegistry | ExtensionRegistryLite |
| Returns | |
|---|---|
| Type | Description |
Expr | |
| Exceptions | |
|---|---|
| Type | Description |
InvalidProtocolBufferException | |
parseFrom(ByteString data)
public static Expr parseFrom(ByteString data)| Parameter | |
|---|---|
| Name | Description |
data | ByteString |
| Returns | |
|---|---|
| Type | Description |
Expr | |
| Exceptions | |
|---|---|
| Type | Description |
InvalidProtocolBufferException | |
parseFrom(ByteString data, ExtensionRegistryLite extensionRegistry)
public static Expr parseFrom(ByteString data, ExtensionRegistryLite extensionRegistry)| Parameters | |
|---|---|
| Name | Description |
data | ByteString |
extensionRegistry | ExtensionRegistryLite |
| Returns | |
|---|---|
| Type | Description |
Expr | |
| Exceptions | |
|---|---|
| Type | Description |
InvalidProtocolBufferException | |
parseFrom(CodedInputStream input)
public static Expr parseFrom(CodedInputStream input)| Parameter | |
|---|---|
| Name | Description |
input | CodedInputStream |
| Returns | |
|---|---|
| Type | Description |
Expr | |
| Exceptions | |
|---|---|
| Type | Description |
IOException | |
parseFrom(CodedInputStream input, ExtensionRegistryLite extensionRegistry)
public static Expr parseFrom(CodedInputStream input, ExtensionRegistryLite extensionRegistry)| Parameters | |
|---|---|
| Name | Description |
input | CodedInputStream |
extensionRegistry | ExtensionRegistryLite |
| Returns | |
|---|---|
| Type | Description |
Expr | |
| Exceptions | |
|---|---|
| Type | Description |
IOException | |
parseFrom(InputStream input)
public static Expr parseFrom(InputStream input)| Parameter | |
|---|---|
| Name | Description |
input | InputStream |
| Returns | |
|---|---|
| Type | Description |
Expr | |
| Exceptions | |
|---|---|
| Type | Description |
IOException | |
parseFrom(InputStream input, ExtensionRegistryLite extensionRegistry)
public static Expr parseFrom(InputStream input, ExtensionRegistryLite extensionRegistry)| Parameters | |
|---|---|
| Name | Description |
input | InputStream |
extensionRegistry | ExtensionRegistryLite |
| Returns | |
|---|---|
| Type | Description |
Expr | |
| Exceptions | |
|---|---|
| Type | Description |
IOException | |
parseFrom(ByteBuffer data)
public static Expr parseFrom(ByteBuffer data)| Parameter | |
|---|---|
| Name | Description |
data | ByteBuffer |
| Returns | |
|---|---|
| Type | Description |
Expr | |
| Exceptions | |
|---|---|
| Type | Description |
InvalidProtocolBufferException | |
parseFrom(ByteBuffer data, ExtensionRegistryLite extensionRegistry)
public static Expr parseFrom(ByteBuffer data, ExtensionRegistryLite extensionRegistry)| Parameters | |
|---|---|
| Name | Description |
data | ByteBuffer |
extensionRegistry | ExtensionRegistryLite |
| Returns | |
|---|---|
| Type | Description |
Expr | |
| Exceptions | |
|---|---|
| Type | Description |
InvalidProtocolBufferException | |
parser()
public static Parser<Expr> parser()| Returns | |
|---|---|
| Type | Description |
Parser<Expr> | |
Methods
equals(Object obj)
public boolean equals(Object obj)| Parameter | |
|---|---|
| Name | Description |
obj | Object |
| Returns | |
|---|---|
| Type | Description |
boolean | |
getDefaultInstanceForType()
public Expr getDefaultInstanceForType()| Returns | |
|---|---|
| Type | Description |
Expr | |
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;
| Returns | |
|---|---|
| Type | Description |
String | The description. |
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;
| Returns | |
|---|---|
| Type | Description |
ByteString | The bytes for description. |
getExpression()
public String getExpression()Textual representation of an expression in Common Expression Language syntax.
string expression = 1;
| Returns | |
|---|---|
| Type | Description |
String | The expression. |
getExpressionBytes()
public ByteString getExpressionBytes()Textual representation of an expression in Common Expression Language syntax.
string expression = 1;
| Returns | |
|---|---|
| Type | Description |
ByteString | The bytes for expression. |
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;
| Returns | |
|---|---|
| Type | Description |
String | The location. |
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;
| Returns | |
|---|---|
| Type | Description |
ByteString | The bytes for location. |
getParserForType()
public Parser<Expr> getParserForType()| Returns | |
|---|---|
| Type | Description |
Parser<Expr> | |
getSerializedSize()
public int getSerializedSize()| Returns | |
|---|---|
| Type | Description |
int | |
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;
| Returns | |
|---|---|
| Type | Description |
String | The title. |
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;
| Returns | |
|---|---|
| Type | Description |
ByteString | The bytes for title. |
hashCode()
public int hashCode()| Returns | |
|---|---|
| Type | Description |
int | |
internalGetFieldAccessorTable()
protected GeneratedMessageV3.FieldAccessorTable internalGetFieldAccessorTable()| Returns | |
|---|---|
| Type | Description |
FieldAccessorTable | |
isInitialized()
public final boolean isInitialized()| Returns | |
|---|---|
| Type | Description |
boolean | |
newBuilderForType()
public Expr.Builder newBuilderForType()| Returns | |
|---|---|
| Type | Description |
Expr.Builder | |
newBuilderForType(GeneratedMessageV3.BuilderParent parent)
protected Expr.Builder newBuilderForType(GeneratedMessageV3.BuilderParent parent)| Parameter | |
|---|---|
| Name | Description |
parent | BuilderParent |
| Returns | |
|---|---|
| Type | Description |
Expr.Builder | |
newInstance(GeneratedMessageV3.UnusedPrivateParameter unused)
protected Object newInstance(GeneratedMessageV3.UnusedPrivateParameter unused)| Parameter | |
|---|---|
| Name | Description |
unused | UnusedPrivateParameter |
| Returns | |
|---|---|
| Type | Description |
Object | |
toBuilder()
public Expr.Builder toBuilder()| Returns | |
|---|---|
| Type | Description |
Expr.Builder | |
writeTo(CodedOutputStream output)
public void writeTo(CodedOutputStream output)| Parameter | |
|---|---|
| Name | Description |
output | CodedOutputStream |
| Exceptions | |
|---|---|
| Type | Description |
IOException | |