Encapsulates the fields required to request data for the given catalog, layer, and partition. More...

#include <DataRequest.h>

Public Member Functions
const porting::optional< std::string > &	GetPartitionId () const
	Gets the ID of the requested partition.

template<class T = porting::optional<std::string>>
DataRequest &	WithPartitionId (T &&partition_id)
	Sets the partition ID.

const porting::optional< std::string > &	GetDataHandle () const
	Get the partition data handle.

template<class T = porting::optional<std::string>>
DataRequest &	WithDataHandle (T &&data_handle)
	Sets the partition data handle.

const porting::optional< std::string > &	GetBillingTag () const
	Gets the billing tag to group billing records together.

template<class T = porting::optional<std::string>>
DataRequest &	WithBillingTag (T &&tag)
	Sets the billing tag for the request.

FetchOptions	GetFetchOption () const
	Gets the fetch option that controls how requests are handled.

DataRequest &	WithFetchOption (FetchOptions fetch_option)
	Sets the fetch option that you can use to set the source from which data should be fetched.

uint32_t	GetPriority () const
	Gets the request priority.

DataRequest &	WithPriority (uint32_t priority)
	Sets the priority of the request.

std::string	CreateKey (const std::string &layer_id, porting::optional< int64_t > version) const
	Creates a readable format for the request.

Detailed Description

Encapsulates the fields required to request data for the given catalog, layer, and partition.

You should specify either a partition ID or a data handle. If both the partition ID and data handle are set in the request, the request fails with the following error: ErrorCode::PreconditionFailed.

Member Function Documentation

◆ CreateKey()

std::string olp::dataservice::read::DataRequest::CreateKey	(	const std::string &	layer_id,
		porting::optional< int64_t >	version
	)		const

inline

Creates a readable format for the request.

Parameters

layer_id	The ID of the layer that is used for the request.
version	The catalog version.

Returns: A string representation of the request.

◆ GetBillingTag()

const porting::optional< std::string > & olp::dataservice::read::DataRequest::GetBillingTag ( ) const

inline

Gets the billing tag to group billing records together.

The billing tag is an optional free-form tag that is used for grouping billing records together. If supplied, it must be 4–16 characters long and contain only alphanumeric ASCII characters [A-Za-z0-9].

Returns: The BillingTag string or olp::porting::none if the billing tag is not set.

◆ GetDataHandle()

const porting::optional< std::string > & olp::dataservice::read::DataRequest::GetDataHandle ( ) const

inline

Get the partition data handle.

You can use the data handle to retrieve the data that relates to this partition. The data handle identifies a specific blob so that you can request the blob contents with the Blob API. When requesting data from the Blob API, you must specify the catalog ID, layer ID, and data handle.

Returns: The partition data handle.

◆ GetFetchOption()

FetchOptions olp::dataservice::read::DataRequest::GetFetchOption ( ) const

inline

Gets the fetch option that controls how requests are handled.

The default option is OnlineIfNotFound that queries the network if the requested resource is not in the cache.

Returns: The fetch option.

◆ GetPartitionId()

const porting::optional< std::string > & olp::dataservice::read::DataRequest::GetPartitionId ( ) const

inline

Gets the ID of the requested partition.

Returns: The partition ID.

◆ GetPriority()

uint32_t olp::dataservice::read::DataRequest::GetPriority ( ) const

inline

Gets the request priority.

The default priority is Priority::NORMAL.

Returns: The request priority.

◆ WithBillingTag()

template<class T = porting::optional<std::string>>

DataRequest & olp::dataservice::read::DataRequest::WithBillingTag ( T && tag )

inline

Sets the billing tag for the request.

See also: GetBillingTag() for information on usage and format.

Parameters

tag	The `BillingTag` string or `olp::porting::none`.

Returns: A reference to the updated DataRequest instance.

◆ WithDataHandle()

template<class T = porting::optional<std::string>>

DataRequest & olp::dataservice::read::DataRequest::WithDataHandle ( T && data_handle )

inline

Sets the partition data handle.

If the data handle cannot be found in the layer, the callback returns with an empty response (the null result for data and an error).

See also: GetDataHandle for information on the partition data handle.

Parameters

data_handle The partition data handle.

Returns: A reference to the updated DataRequest instance.

◆ WithFetchOption()

DataRequest & olp::dataservice::read::DataRequest::WithFetchOption ( FetchOptions fetch_option )

inline

Sets the fetch option that you can use to set the source from which data should be fetched.

See also: GetFetchOption() for information on usage and format.

Parameters

fetch_option The FetchOption enum.

Returns: A reference to the updated DataRequest instance.

◆ WithPartitionId()

template<class T = porting::optional<std::string>>

DataRequest & olp::dataservice::read::DataRequest::WithPartitionId ( T && partition_id )

inline

Sets the partition ID.

If the partition cannot be found in the layer, the callback returns with an empty response (the null result for data and an error).

Parameters

partition_id The partition ID.

Returns: A reference to the updated DataRequest instance.

◆ WithPriority()

DataRequest & olp::dataservice::read::DataRequest::WithPriority ( uint32_t priority )

inline

Sets the priority of the request.

Parameters

priority The priority of the request.

Returns: A reference to the updated DataRequest instance.

The documentation for this class was generated from the following file:

olp-cpp-sdk-dataservice-read/include/olp/dataservice/read/DataRequest.h

Public Member Functions

Detailed Description

Member Function Documentation

◆ CreateKey()

◆ GetBillingTag()

◆ GetDataHandle()

◆ GetFetchOption()

◆ GetPartitionId()

◆ GetPriority()

◆ WithBillingTag()

◆ WithDataHandle()

◆ WithFetchOption()

◆ WithPartitionId()

◆ WithPriority()