Package com.sap.cloud.sdk.datamodel.odatav4.core

Class GetByKeyRequestBuilder<EntityT extends VdmEntity<?>>

java.lang.Object
com.sap.cloud.sdk.datamodel.odatav4.core.GetByKeyRequestBuilder<EntityT>
Type Parameters:
EntityT - The type of the result entity.
All Implemented Interfaces:
ReadRequestBuilder<EntityT>, RequestBuilder<EntityT>, RequestBuilderExecutable<EntityT>
public class GetByKeyRequestBuilder<EntityT extends VdmEntity<?>> extends Object implements ReadRequestBuilder<EntityT>
Representation of an OData request to retrieve an entity by its key as a fluent interface for further configuring the request and executing it.

  • Field Details

  • Constructor Details

    • GetByKeyRequestBuilder

      public GetByKeyRequestBuilder(@Nonnull String servicePath, @Nonnull Class<EntityT> entityClass, @Nonnull Map<String,Object> entityKey, @Nonnull String entityCollection)
      Instantiates this request builder using the given service path to send the requests.
      Parameters:
      servicePath - The service path to direct the requests to.
      entityClass - The expected entity type.
      entityKey - The composite entity key.
      entityCollection - The entity collection
      Throws:
      IllegalArgumentException - When there is no mapping found for one of the provided Java literal in the composite key.

  • Method Details

    • toRequest

      @Nonnull public ODataRequestReadByKey toRequest()
      Creates an instance of ODataRequestReadByKey based on the Entity class.

      The following settings are used:

      • the endpoint URL
      • the entity collection name
      • the key fields of the entity
      • the fields to be selected
      Specified by:
      toRequest in interface RequestBuilder<EntityT extends VdmEntity<?>>
      Returns:
      An initialized ODataRequestReadByKey.

    • execute

      @Nonnull public EntityT execute(@Nonnull Destination destination)
      Description copied from interface: RequestBuilderExecutable
      Execute the OData request.
      Specified by:
      execute in interface RequestBuilderExecutable<EntityT extends VdmEntity<?>>
      Parameters:
      destination - The destination to be used as request target.
      Returns:
      The generic OData response result.

    • select

      @SafeVarargs @Nonnull public final GetByKeyRequestBuilder<EntityT> select(@Nonnull Property<EntityT>... fields)

    • withCsrfToken

      @Nonnull public GetByKeyRequestBuilder<EntityT> withCsrfToken()
      Description copied from interface: ReadRequestBuilder
      Activates the CSRF token retrieval for this OData request. This is useful if the server does require CSRF tokens as part of the request.
      Specified by:
      withCsrfToken in interface ReadRequestBuilder<EntityT extends VdmEntity<?>>
      Returns:
      The same builder

    • getEntityClass

      @Nonnull protected Class<EntityT> getEntityClass()
      Returns a class object of the type this request builder works with.
      Returns:
      A class object of the handled type.

    • getThis

      @Nonnull protected GetByKeyRequestBuilder<EntityT> getThis()
      Get the reference to this instance.
      Returns:
      The FluentHelper instance.

    • withListener

      @Nonnull public GetByKeyRequestBuilder<EntityT> withListener(@Nonnull ODataRequestListener listener)
      An error handling class that implements the error result handler interface can be attached to this request builder. This allows custom logic to be called when an error occurs in the execute method. If this method is not called, then an instance of ODataRequestListener is used. Only one handler can be attached at a time per request builder object, so calling this multiple times will replace the handler.
      Parameters:
      listener - Instance of an error handler class that implements the error result handler interface.
      Returns:
      The same request builder with its error handler set to the provided object.

    • withHeader

      @Nonnull public GetByKeyRequestBuilder<EntityT> withHeader(@Nonnull String key, @Nullable String value)
      Description copied from interface: RequestBuilder
      Gives the option to specify custom HTTP headers. Multiple headers with the same key can be specified. The returned object allows to specify the requests the headers should be used in.
      Specified by:
      withHeader in interface RequestBuilder<BuilderT extends RequestBuilder<ResultT>>
      Parameters:
      key - Name of the (first) desired HTTP header parameter.
      value - Value of the (first) desired HTTP header parameter.
      Returns:
      A request builder to specify further headers and their intended usage.

    • withHeaders

      @Nonnull public GetByKeyRequestBuilder<EntityT> withHeaders(@Nonnull Map<String,String> map)
      Description copied from interface: RequestBuilder
      Gives the option to specify a map of custom HTTP headers. The returned object allows to specify the requests the headers should be used in.
      Specified by:
      withHeaders in interface RequestBuilder<BuilderT extends RequestBuilder<ResultT>>
      Parameters:
      map - A map of HTTP header key/value pairs.
      Returns:
      A request builder to specify further headers and their intended usage.

    • withQueryParameter

      @Nonnull public GetByKeyRequestBuilder<EntityT> withQueryParameter(@Nonnull String key, @Nullable String value)
      Gives the option to specify custom query parameters for the request.

      Note: It is recommended to only use this function for query parameters which are not supported by the VDM by default. Using this function to bypass request builder method calls can lead to unsupported response handling. There is no contract on the order or priority of parameters added to the request.

      Example: Use the request query option $search to reduce the result set, leaving only entities which match the specified search expression. This feature is supported in protocol OData v4. 

       new DefaultBusinessPartnerService().getAllBusinessPartner().withQueryParameter("$search", "Köln OR Cologne")

      Parameters:
      key - Name of the query parameter.
      value - Value of the query parameter.
      Returns:
      The same request builder.

    • getServicePath

      @Nonnull protected String getServicePath()

    • getResourcePath

      @Nonnull protected ODataResourcePath getResourcePath()

    • getHeaders

      @Nonnull protected Map<String,Collection<String>> getHeaders()
      A map containing the headers to be used only for the actual request of this FluentHelper implementation.

    • getParametersForRequestOnly

      @Nonnull protected Map<String,String> getParametersForRequestOnly()
      A map containing the custom query parameters to be used only for the actual request of this FluentHelper implementation.

    • getListeners

      @Nonnull protected List<ODataRequestListener> getListeners()