AWS Systems Manager for SAP 2018-05-10
- Client: Aws\SsmSap\SsmSapClient
- Service ID: ssm-sap
- Version: 2018-05-10
This page describes the parameters and results for the operations of the AWS Systems Manager for SAP (2018-05-10), and shows how to use the Aws\SsmSap\SsmSapClient object to call the described operations. This documentation is specific to the 2018-05-10 API version of the service.
Operation Summary
Each of the following operations can be created from a client using
$client->getCommand('CommandName'), where "CommandName" is the
name of one of the following operations. Note: a command is a value that
encapsulates an operation and the parameters used to create an HTTP request.
You can also create and send a command immediately using the magic methods
available on a client object: $client->commandName(/* parameters */).
You can send the command asynchronously (returning a promise) by appending the
word "Async" to the operation name: $client->commandNameAsync(/* parameters */).
- DeleteResourcePermission ( array $params = [] )
Removes permissions associated with the target database.
- DeregisterApplication ( array $params = [] )
Deregister an SAP application with AWS Systems Manager for SAP.
- GetApplication ( array $params = [] )
Gets an application registered with AWS Systems Manager for SAP.
- GetComponent ( array $params = [] )
Gets the component of an application registered with AWS Systems Manager for SAP.
- GetDatabase ( array $params = [] )
Gets the SAP HANA database of an application registered with AWS Systems Manager for SAP.
- GetOperation ( array $params = [] )
Gets the details of an operation by specifying the operation ID.
- GetResourcePermission ( array $params = [] )
Gets permissions associated with the target database.
- ListApplications ( array $params = [] )
Lists all the applications registered with AWS Systems Manager for SAP.
- ListComponents ( array $params = [] )
Lists all the components registered with AWS Systems Manager for SAP.
- ListDatabases ( array $params = [] )
Lists the SAP HANA databases of an application registered with AWS Systems Manager for SAP.
- ListOperations ( array $params = [] )
Lists the operations performed by AWS Systems Manager for SAP.
- ListTagsForResource ( array $params = [] )
Lists all tags on an SAP HANA application and/or database registered with AWS Systems Manager for SAP.
- PutResourcePermission ( array $params = [] )
Adds permissions to the target database.
- RegisterApplication ( array $params = [] )
Register an SAP application with AWS Systems Manager for SAP.
- TagResource ( array $params = [] )
Creates tag for a resource by specifying the ARN.
- UntagResource ( array $params = [] )
Delete the tags for a resource.
- UpdateApplicationSettings ( array $params = [] )
Updates the settings of an application registered with AWS Systems Manager for SAP.
Paginators
Paginators handle automatically iterating over paginated API results. Paginators are associated with specific API operations, and they accept the parameters that the corresponding API operation accepts. You can get a paginator from a client class using getPaginator($paginatorName, $operationParameters). This client supports the following paginators:
Operations
DeleteResourcePermission
$result = $client->deleteResourcePermission([/* ... */]); $promise = $client->deleteResourcePermissionAsync([/* ... */]);
Removes permissions associated with the target database.
Parameter Syntax
$result = $client->deleteResourcePermission([
'ActionType' => 'RESTORE',
'ResourceArn' => '<string>', // REQUIRED
'SourceResourceArn' => '<string>',
]);
Parameter Details
Members
Result Syntax
[
'Policy' => '<string>',
]
Result Details
Errors
-
The resource is not available.
-
The input fails to satisfy the constraints specified by an AWS service.
-
An internal error has occurred.
DeregisterApplication
$result = $client->deregisterApplication([/* ... */]); $promise = $client->deregisterApplicationAsync([/* ... */]);
Deregister an SAP application with AWS Systems Manager for SAP. This action does not affect the existing setup of your SAP workloads on Amazon EC2.
Parameter Syntax
$result = $client->deregisterApplication([
'ApplicationId' => '<string>', // REQUIRED
]);
Parameter Details
Result Syntax
[]
Result Details
Errors
-
The input fails to satisfy the constraints specified by an AWS service.
-
An internal error has occurred.
GetApplication
$result = $client->getApplication([/* ... */]); $promise = $client->getApplicationAsync([/* ... */]);
Gets an application registered with AWS Systems Manager for SAP. It also returns the components of the application.
Parameter Syntax
$result = $client->getApplication([
'AppRegistryArn' => '<string>',
'ApplicationArn' => '<string>',
'ApplicationId' => '<string>',
]);
Parameter Details
Members
Result Syntax
[
'Application' => [
'AppRegistryArn' => '<string>',
'Arn' => '<string>',
'Components' => ['<string>', ...],
'Id' => '<string>',
'LastUpdated' => <DateTime>,
'Status' => 'ACTIVATED|STARTING|STOPPED|STOPPING|FAILED|REGISTERING|DELETING|UNKNOWN',
'StatusMessage' => '<string>',
'Type' => 'HANA',
],
'Tags' => ['<string>', ...],
]
Result Details
Members
- Application
-
- Type: Application structure
Returns all of the metadata of an application registered with AWS Systems Manager for SAP.
- Tags
-
- Type: Associative array of custom strings keys (TagKey) to strings
The tags of a registered application.
Errors
-
The input fails to satisfy the constraints specified by an AWS service.
-
An internal error has occurred.
GetComponent
$result = $client->getComponent([/* ... */]); $promise = $client->getComponentAsync([/* ... */]);
Gets the component of an application registered with AWS Systems Manager for SAP.
Parameter Syntax
$result = $client->getComponent([
'ApplicationId' => '<string>', // REQUIRED
'ComponentId' => '<string>', // REQUIRED
]);
Parameter Details
Members
Result Syntax
[
'Component' => [
'ApplicationId' => '<string>',
'ComponentId' => '<string>',
'ComponentType' => 'HANA',
'Databases' => ['<string>', ...],
'Hosts' => [
[
'HostIp' => '<string>',
'HostName' => '<string>',
'HostRole' => 'LEADER|WORKER|STANDBY|UNKNOWN',
'InstanceId' => '<string>',
],
// ...
],
'LastUpdated' => <DateTime>,
'PrimaryHost' => '<string>',
'Status' => 'ACTIVATED',
],
]
Result Details
Members
- Component
-
- Type: Component structure
The component of an application registered with AWS Systems Manager for SAP.
Errors
-
The input fails to satisfy the constraints specified by an AWS service.
-
An internal error has occurred.
GetDatabase
$result = $client->getDatabase([/* ... */]); $promise = $client->getDatabaseAsync([/* ... */]);
Gets the SAP HANA database of an application registered with AWS Systems Manager for SAP.
Parameter Syntax
$result = $client->getDatabase([
'ApplicationId' => '<string>',
'ComponentId' => '<string>',
'DatabaseArn' => '<string>',
'DatabaseId' => '<string>',
]);
Parameter Details
Members
Result Syntax
[
'Database' => [
'ApplicationId' => '<string>',
'Arn' => '<string>',
'ComponentId' => '<string>',
'Credentials' => [
[
'CredentialType' => 'ADMIN',
'DatabaseName' => '<string>',
'SecretId' => '<string>',
],
// ...
],
'DatabaseId' => '<string>',
'DatabaseName' => '<string>',
'DatabaseType' => 'SYSTEM|TENANT',
'LastUpdated' => <DateTime>,
'PrimaryHost' => '<string>',
'SQLPort' => <integer>,
'Status' => 'RUNNING|STARTING|STOPPED|WARNING|UNKNOWN',
],
'Tags' => ['<string>', ...],
]
Result Details
Members
- Database
-
- Type: Database structure
The SAP HANA database of an application registered with AWS Systems Manager for SAP.
- Tags
-
- Type: Associative array of custom strings keys (TagKey) to strings
The tags of a database.
Errors
-
The input fails to satisfy the constraints specified by an AWS service.
-
An internal error has occurred.
GetOperation
$result = $client->getOperation([/* ... */]); $promise = $client->getOperationAsync([/* ... */]);
Gets the details of an operation by specifying the operation ID.
Parameter Syntax
$result = $client->getOperation([
'OperationId' => '<string>', // REQUIRED
]);
Parameter Details
Result Syntax
[
'Operation' => [
'EndTime' => <DateTime>,
'Id' => '<string>',
'LastUpdatedTime' => <DateTime>,
'Properties' => ['<string>', ...],
'ResourceArn' => '<string>',
'ResourceId' => '<string>',
'ResourceType' => '<string>',
'StartTime' => <DateTime>,
'Status' => 'INPROGRESS|SUCCESS|ERROR',
'StatusMessage' => '<string>',
'Type' => '<string>',
],
]
Result Details
Members
- Operation
-
- Type: Operation structure
Returns the details of an operation.
Errors
-
The input fails to satisfy the constraints specified by an AWS service.
-
An internal error has occurred.
GetResourcePermission
$result = $client->getResourcePermission([/* ... */]); $promise = $client->getResourcePermissionAsync([/* ... */]);
Gets permissions associated with the target database.
Parameter Syntax
$result = $client->getResourcePermission([
'ActionType' => 'RESTORE',
'ResourceArn' => '<string>', // REQUIRED
]);
Parameter Details
Members
Result Syntax
[
'Policy' => '<string>',
]
Result Details
Errors
-
The resource is not available.
-
The input fails to satisfy the constraints specified by an AWS service.
-
An internal error has occurred.
ListApplications
$result = $client->listApplications([/* ... */]); $promise = $client->listApplicationsAsync([/* ... */]);
Lists all the applications registered with AWS Systems Manager for SAP.
Parameter Syntax
$result = $client->listApplications([
'MaxResults' => <integer>,
'NextToken' => '<string>',
]);
Parameter Details
Members
Result Syntax
[
'Applications' => [
[
'Arn' => '<string>',
'Id' => '<string>',
'Tags' => ['<string>', ...],
'Type' => 'HANA',
],
// ...
],
'NextToken' => '<string>',
]
Result Details
Members
- Applications
-
- Type: Array of ApplicationSummary structures
The applications registered with AWS Systems Manager for SAP.
- NextToken
-
- Type: string
The token to use to retrieve the next page of results. This value is null when there are no more results to return.
Errors
-
The resource is not available.
-
The input fails to satisfy the constraints specified by an AWS service.
-
An internal error has occurred.
ListComponents
$result = $client->listComponents([/* ... */]); $promise = $client->listComponentsAsync([/* ... */]);
Lists all the components registered with AWS Systems Manager for SAP.
Parameter Syntax
$result = $client->listComponents([
'ApplicationId' => '<string>',
'MaxResults' => <integer>,
'NextToken' => '<string>',
]);
Parameter Details
Members
- ApplicationId
-
- Type: string
The ID of the application.
- MaxResults
-
- Type: int
The maximum number of results to return with a single call. To retrieve the remaining results, make another call with the returned nextToken value.
If you do not specify a value for MaxResults, the request returns 50 items per page by default.
- NextToken
-
- Type: string
The token for the next page of results.
Result Syntax
[
'Components' => [
[
'ApplicationId' => '<string>',
'ComponentId' => '<string>',
'ComponentType' => 'HANA',
'Tags' => ['<string>', ...],
],
// ...
],
'NextToken' => '<string>',
]
Result Details
Members
- Components
-
- Type: Array of ComponentSummary structures
List of components registered with AWS System Manager for SAP.
- NextToken
-
- Type: string
The token to use to retrieve the next page of results. This value is null when there are no more results to return.
Errors
-
The resource is not available.
-
The input fails to satisfy the constraints specified by an AWS service.
-
An internal error has occurred.
ListDatabases
$result = $client->listDatabases([/* ... */]); $promise = $client->listDatabasesAsync([/* ... */]);
Lists the SAP HANA databases of an application registered with AWS Systems Manager for SAP.
Parameter Syntax
$result = $client->listDatabases([
'ApplicationId' => '<string>',
'ComponentId' => '<string>',
'MaxResults' => <integer>,
'NextToken' => '<string>',
]);
Parameter Details
Members
- ApplicationId
-
- Type: string
The ID of the application.
- ComponentId
-
- Type: string
The ID of the component.
- MaxResults
-
- Type: int
The maximum number of results to return with a single call. To retrieve the remaining results, make another call with the returned nextToken value. If you do not specify a value for MaxResults, the request returns 50 items per page by default.
- NextToken
-
- Type: string
The token for the next page of results.
Result Syntax
[
'Databases' => [
[
'ApplicationId' => '<string>',
'Arn' => '<string>',
'ComponentId' => '<string>',
'DatabaseId' => '<string>',
'DatabaseType' => 'SYSTEM|TENANT',
'Tags' => ['<string>', ...],
],
// ...
],
'NextToken' => '<string>',
]
Result Details
Members
- Databases
-
- Type: Array of DatabaseSummary structures
The SAP HANA databases of an application.
- NextToken
-
- Type: string
The token to use to retrieve the next page of results. This value is null when there are no more results to return.
Errors
-
The resource is not available.
-
The input fails to satisfy the constraints specified by an AWS service.
-
An internal error has occurred.
ListOperations
$result = $client->listOperations([/* ... */]); $promise = $client->listOperationsAsync([/* ... */]);
Lists the operations performed by AWS Systems Manager for SAP.
Parameter Syntax
$result = $client->listOperations([
'ApplicationId' => '<string>', // REQUIRED
'Filters' => [
[
'Name' => '<string>', // REQUIRED
'Operator' => 'Equals|GreaterThanOrEquals|LessThanOrEquals', // REQUIRED
'Value' => '<string>', // REQUIRED
],
// ...
],
'MaxResults' => <integer>,
'NextToken' => '<string>',
]);
Parameter Details
Members
- ApplicationId
-
- Required: Yes
- Type: string
The ID of the application.
- Filters
-
- Type: Array of Filter structures
The filters of an operation.
- MaxResults
-
- Type: int
The maximum number of results to return with a single call. To retrieve the remaining results, make another call with the returned nextToken value. If you do not specify a value for MaxResults, the request returns 50 items per page by default.
- NextToken
-
- Type: string
The token for the next page of results.
Result Syntax
[
'NextToken' => '<string>',
'Operations' => [
[
'EndTime' => <DateTime>,
'Id' => '<string>',
'LastUpdatedTime' => <DateTime>,
'Properties' => ['<string>', ...],
'ResourceArn' => '<string>',
'ResourceId' => '<string>',
'ResourceType' => '<string>',
'StartTime' => <DateTime>,
'Status' => 'INPROGRESS|SUCCESS|ERROR',
'StatusMessage' => '<string>',
'Type' => '<string>',
],
// ...
],
]
Result Details
Members
- NextToken
-
- Type: string
The token to use to retrieve the next page of results. This value is null when there are no more results to return.
- Operations
-
- Type: Array of Operation structures
List of operations performed by AWS Systems Manager for SAP.
Errors
-
The input fails to satisfy the constraints specified by an AWS service.
-
An internal error has occurred.
ListTagsForResource
$result = $client->listTagsForResource([/* ... */]); $promise = $client->listTagsForResourceAsync([/* ... */]);
Lists all tags on an SAP HANA application and/or database registered with AWS Systems Manager for SAP.
Parameter Syntax
$result = $client->listTagsForResource([
'resourceArn' => '<string>', // REQUIRED
]);
Parameter Details
Result Syntax
[
'tags' => ['<string>', ...],
]
Result Details
Errors
-
The resource is not available.
-
The input fails to satisfy the constraints specified by an AWS service.
-
A conflict has occurred.
PutResourcePermission
$result = $client->putResourcePermission([/* ... */]); $promise = $client->putResourcePermissionAsync([/* ... */]);
Adds permissions to the target database.
Parameter Syntax
$result = $client->putResourcePermission([
'ActionType' => 'RESTORE', // REQUIRED
'ResourceArn' => '<string>', // REQUIRED
'SourceResourceArn' => '<string>', // REQUIRED
]);
Parameter Details
Members
Result Syntax
[
'Policy' => '<string>',
]
Result Details
Errors
-
The resource is not available.
-
The input fails to satisfy the constraints specified by an AWS service.
-
An internal error has occurred.
RegisterApplication
$result = $client->registerApplication([/* ... */]); $promise = $client->registerApplicationAsync([/* ... */]);
Register an SAP application with AWS Systems Manager for SAP. You must meet the following requirements before registering.
The SAP application you want to register with AWS Systems Manager for SAP is running on Amazon EC2.
AWS Systems Manager Agent must be setup on an Amazon EC2 instance along with the required IAM permissions.
Amazon EC2 instance(s) must have access to the secrets created in AWS Secrets Manager to manage SAP applications and components.
Parameter Syntax
$result = $client->registerApplication([
'ApplicationId' => '<string>', // REQUIRED
'ApplicationType' => 'HANA', // REQUIRED
'Credentials' => [ // REQUIRED
[
'CredentialType' => 'ADMIN', // REQUIRED
'DatabaseName' => '<string>', // REQUIRED
'SecretId' => '<string>', // REQUIRED
],
// ...
],
'Instances' => ['<string>', ...], // REQUIRED
'SapInstanceNumber' => '<string>',
'Sid' => '<string>',
'Tags' => ['<string>', ...],
]);
Parameter Details
Members
- ApplicationId
-
- Required: Yes
- Type: string
The ID of the application.
- ApplicationType
-
- Required: Yes
- Type: string
The type of the application.
- Credentials
-
- Required: Yes
- Type: Array of ApplicationCredential structures
The credentials of the SAP application.
- Instances
-
- Required: Yes
- Type: Array of strings
The Amazon EC2 instances on which your SAP application is running.
- SapInstanceNumber
-
- Type: string
The SAP instance number of the application.
- Sid
-
- Type: string
The System ID of the application.
- Tags
-
- Type: Associative array of custom strings keys (TagKey) to strings
The tags to be attached to the SAP application.
Result Syntax
[
'Application' => [
'AppRegistryArn' => '<string>',
'Arn' => '<string>',
'Components' => ['<string>', ...],
'Id' => '<string>',
'LastUpdated' => <DateTime>,
'Status' => 'ACTIVATED|STARTING|STOPPED|STOPPING|FAILED|REGISTERING|DELETING|UNKNOWN',
'StatusMessage' => '<string>',
'Type' => 'HANA',
],
'OperationId' => '<string>',
]
Result Details
Members
- Application
-
- Type: Application structure
The application registered with AWS Systems Manager for SAP.
- OperationId
-
- Type: string
The ID of the operation.
Errors
-
The input fails to satisfy the constraints specified by an AWS service.
-
A conflict has occurred.
-
An internal error has occurred.
TagResource
$result = $client->tagResource([/* ... */]); $promise = $client->tagResourceAsync([/* ... */]);
Creates tag for a resource by specifying the ARN.
Parameter Syntax
$result = $client->tagResource([
'resourceArn' => '<string>', // REQUIRED
'tags' => ['<string>', ...], // REQUIRED
]);
Parameter Details
Members
Result Syntax
[]
Result Details
Errors
-
The resource is not available.
-
The input fails to satisfy the constraints specified by an AWS service.
-
A conflict has occurred.
UntagResource
$result = $client->untagResource([/* ... */]); $promise = $client->untagResourceAsync([/* ... */]);
Delete the tags for a resource.
Parameter Syntax
$result = $client->untagResource([
'resourceArn' => '<string>', // REQUIRED
'tagKeys' => ['<string>', ...], // REQUIRED
]);
Parameter Details
Members
Result Syntax
[]
Result Details
Errors
-
The resource is not available.
-
The input fails to satisfy the constraints specified by an AWS service.
-
A conflict has occurred.
UpdateApplicationSettings
$result = $client->updateApplicationSettings([/* ... */]); $promise = $client->updateApplicationSettingsAsync([/* ... */]);
Updates the settings of an application registered with AWS Systems Manager for SAP.
Parameter Syntax
$result = $client->updateApplicationSettings([
'ApplicationId' => '<string>', // REQUIRED
'CredentialsToAddOrUpdate' => [
[
'CredentialType' => 'ADMIN', // REQUIRED
'DatabaseName' => '<string>', // REQUIRED
'SecretId' => '<string>', // REQUIRED
],
// ...
],
'CredentialsToRemove' => [
[
'CredentialType' => 'ADMIN', // REQUIRED
'DatabaseName' => '<string>', // REQUIRED
'SecretId' => '<string>', // REQUIRED
],
// ...
],
]);
Parameter Details
Members
- ApplicationId
-
- Required: Yes
- Type: string
The ID of the application.
- CredentialsToAddOrUpdate
-
- Type: Array of ApplicationCredential structures
The credentials to be added or updated.
- CredentialsToRemove
-
- Type: Array of ApplicationCredential structures
The credentials to be removed.
Result Syntax
[
'Message' => '<string>',
'OperationIds' => ['<string>', ...],
]
Result Details
Members
Errors
-
The resource is not available.
-
The input fails to satisfy the constraints specified by an AWS service.
-
An internal error has occurred.
Shapes
Application
Description
An SAP application registered with AWS Systems Manager for SAP.
Members
- AppRegistryArn
-
- Type: string
The Amazon Resource Name (ARN) of the Application Registry.
- Arn
-
- Type: string
The Amazon Resource Name (ARN) of the application.
- Components
-
- Type: Array of strings
The components of the application.
- Id
-
- Type: string
The ID of the application.
- LastUpdated
-
- Type: timestamp (string|DateTime or anything parsable by strtotime)
The time at which the application was last updated.
- Status
-
- Type: string
The status of the application.
- StatusMessage
-
- Type: string
The status message.
- Type
-
- Type: string
The type of the application.
ApplicationCredential
Description
The credentials of your SAP application.
Members
ApplicationSummary
Description
The summary of the SAP application registered with AWS Systems Manager for SAP.
Members
Component
Description
The SAP component of your application.
Members
- ApplicationId
-
- Type: string
The ID of the application.
- ComponentId
-
- Type: string
The ID of the component.
- ComponentType
-
- Type: string
The type of the component.
- Databases
-
- Type: Array of strings
The SAP HANA databases of the component.
- Hosts
-
- Type: Array of Host structures
The hosts of the component.
- LastUpdated
-
- Type: timestamp (string|DateTime or anything parsable by strtotime)
The time at which the component was last updated.
- PrimaryHost
-
- Type: string
The primary host of the component.
- Status
-
- Type: string
The status of the component.
ComponentSummary
Description
The summary of the component.
Members
ConflictException
Database
Description
The SAP HANA database of the application registered with AWS Systems Manager for SAP.
Members
- ApplicationId
-
- Type: string
The ID of the application.
- Arn
-
- Type: string
The Amazon Resource Name (ARN) of the database.
- ComponentId
-
- Type: string
The ID of the component.
- Credentials
-
- Type: Array of ApplicationCredential structures
The credentials of the database.
- DatabaseId
-
- Type: string
The ID of the SAP HANA database.
- DatabaseName
-
- Type: string
The name of the database.
- DatabaseType
-
- Type: string
The type of the database.
- LastUpdated
-
- Type: timestamp (string|DateTime or anything parsable by strtotime)
The time at which the database was last updated.
- PrimaryHost
-
- Type: string
The primary host of the database.
- SQLPort
-
- Type: int
The SQL port of the database.
- Status
-
- Type: string
The status of the database.
DatabaseSummary
Description
The summary of the database.
Members
- ApplicationId
-
- Type: string
The ID of the application.
- Arn
-
- Type: string
The Amazon Resource Name (ARN) of the database.
- ComponentId
-
- Type: string
The ID of the component.
- DatabaseId
-
- Type: string
The ID of the database.
- DatabaseType
-
- Type: string
The type of the database.
- Tags
-
- Type: Associative array of custom strings keys (TagKey) to strings
The tags of the database.
Filter
Description
A specific result obtained by specifying the name, value, and operator.
Members
- Name
-
- Required: Yes
- Type: string
The name of the filter. Filter names are case-sensitive.
- Operator
-
- Required: Yes
- Type: string
The operator for the filter.
- Value
-
- Required: Yes
- Type: string
The filter values. Filter values are case-sensitive. If you specify multiple values for a filter, the values are joined with an OR, and the request returns all results that match any of the specified values
Host
Description
Describes the properties of the Dedicated Host.
Members
InternalServerException
Operation
Description
The operations performed by AWS Systems Manager for SAP.
Members
- EndTime
-
- Type: timestamp (string|DateTime or anything parsable by strtotime)
The end time of the operation.
- Id
-
- Type: string
The ID of the operation.
- LastUpdatedTime
-
- Type: timestamp (string|DateTime or anything parsable by strtotime)
The time at which the operation was last updated.
- Properties
-
- Type: Associative array of custom strings keys (String) to strings
The properties of the operation.
- ResourceArn
-
- Type: string
The Amazon Resource Name (ARN) of the operation.
- ResourceId
-
- Type: string
The resource ID of the operation.
- ResourceType
-
- Type: string
The resource type of the operation.
- StartTime
-
- Type: timestamp (string|DateTime or anything parsable by strtotime)
The start time of the operation.
- Status
-
- Type: string
The status of the operation.
- StatusMessage
-
- Type: string
The status message of the operation.
- Type
-
- Type: string
The type of the operation.