| Name | Description | Type | Package | Framework |
| BinaryPayload | BinaryPayload is a payload that carries non-textual data only. | Class | com.sap.aii.mapping.lookup | SAP NetWeaver |
| Channel | This class represents a communication channel. | Class | com.sap.aii.mapping.lookup | SAP NetWeaver |
| DataBaseAccessor | Accessor for database lookups. | Class | com.sap.aii.mapping.lookup | SAP NetWeaver |
| DataBaseResult | Database result set. | Interface | com.sap.aii.mapping.lookup | SAP NetWeaver |
| DataBaseResultMetaData | Meta data of the database result. | Interface | com.sap.aii.mapping.lookup | SAP NetWeaver |
| LookupException | Exception thrown by the lookup accessors or lookup service. | Class | com.sap.aii.mapping.lookup | SAP NetWeaver |
| LookupService | Lookup service for communicating with remote systems via adapters. | Class | com.sap.aii.mapping.lookup | SAP NetWeaver |
| LookupService .Internal | Internal Service. | Class | com.sap.aii.mapping.lookup | SAP NetWeaver |
| Payload | Payload contains the data that has to be forwarded by a system accessor or was received by a system accessor. | Class | com.sap.aii.mapping.lookup | SAP NetWeaver |
| RfcAccessor | Accessor for calling remote function modules in SAP ABAP systems via the RFC adapter. | Class | com.sap.aii.mapping.lookup | SAP NetWeaver |
| SystemAccessor | Accessor for a synchronous communication with a remote system. | Class | com.sap.aii.mapping.lookup | SAP NetWeaver |
| SystemAccessor .Internal | Internal system accessor. | Interface | com.sap.aii.mapping.lookup | SAP NetWeaver |
| TextPayload | TextPayload are textual payloads. | Class | com.sap.aii.mapping.lookup | SAP NetWeaver |
| XmlPayload | XMLPayload is a payload that represents a XML document. | Class | com.sap.aii.mapping.lookup | SAP NetWeaver |