A Advanced Tuning of the Metadata

Oracle Studio enables you to define adapter interactions, such as Outbound and Inbound interactions. In addition, Oracle Studio defines input and output structures used for these interactions. The interactions and input and output structures are maintained as metadata in the Metadata tab of Oracle Studio.

This appendix contains the following section:

Metadata for the Back-end Adapter

Metadata for the Back-end Adapter

Using Oracle Studio, perform the following steps to maintain the metadata for OracleAS Adapter for IMS/TM.

From the Start menu, select Programs, Oracle, and then select Studio.
Select the computer defined in "Setting Up the IBM OS/390 or z/OS Platform in Oracle Studio".
Expand the Bindings node.
Expand the NAV binding node.
Expand the Adapters node to display the adapters.
Right-click the IMS/TM adapter in the Configuration Explorer and select Edit Metadata to open the Metadata tab.
Right-click the interaction in the Metadata Explorer and select Edit.

The metadata editor opens, displaying the General tab, with general table details. The following tabs are used to view and edit the metadata:

General Tab
Interaction Tab
Schema General Tab
Schema Record Tab

Source Tab

General Tab

Use the General tab to maintain information describing the adapter and the connection to the adapter.

The General tab is shown in the following figure:

Description of the illustration md_ad1.gif

The General tab comprises fields, as listed in the following table:

Field	Description
Adapter definition name	Specifies the name of the adapter definition.
Description	Specifies an identifying description of the adapter.
Authentication mechanism	Specifies the authentication method used to access the adapter. The available mechanisms are: kerbv5 none basic password
Max request size	Specifies the maximum size in bytes for an XML request or reply. Larger messages are rejected with an error.
Max active connections	Specifies the maximum number of simultaneous connections for an adapter (per process).
Max idle timeout	Specifies the maximum time, in seconds, that an active connection can stay idle. After that time, the connection is closed.
Adapter Specifications	Specifies the adapter-specific properties for an interaction. The IMS/TM back-end adapter does not have any adapter-specific properties.

Interaction Tab

Use the Interaction tab to define the general details of the interaction in addition to its input and output definitions.

The Interactions tab is displayed in the following figure:

Description of the illustration md_ad2.gif

The Interaction tab comprises fields, as listed in the following table:

Field	Description
Interaction name	Specifies the name of the interaction.
Description	Provides a descriptive identifier for the interaction.
Mode	Determines the interaction mode. The following interaction modes are available: sync-send-receive: The interaction sends a request and expects to receive a response. sync-send: The interaction sends a request and does not expect to receive a response. sync-receive: The interaction expects to receive a response. async-send: Not applicable
Input record	Identifies an input record.
Output record	Identifies an output record for the results of an interaction.
Interaction Specific Parameters	Defines the properties and values of parameters specific to an interaction. The following property is available: transaction: The name of the IMS/TM transaction that is called when the interaction is executed.

Schema General Tab

Use the Schema General tab to define the general details of the input and output record structures for the interaction.

The Schema General tab is shown in the following figure:

Description of the illustration md_ad3.gif

The Schema General tab comprises fields, as listed in the following table:

Field	Description
Schema name	The name of the adapter.
Version	The schema version.
Header	A C header file to map between the data structure and the adapter.

Schema Record Tab

Use the Schema Record tab to define the input and output record structures for the interaction.

The Schema Record tab is shown in the following figure.

Description of the illustration md_ad4.gif

The Schema Record tab comprises fields, as listed in the following table:

Use the Fields List to defines single data items within a record.

Field Description

Name Specifies the name of the field.

Type

Field	Description
Name	Specifies the name of the field.
Type	The data type of the field. The following are valid data types: `Binary` `Boolean` `Date` `Double` `Float` `Int` `Long` `Numeric` `Short` `String` `Time` `Timestamp` `XML` See Also: Appendix B, "IMS/TM Back-end Adapter Data Type Support" for details about the mapping from COBOL data types to IMS/TM back-end adapter data types.
Length	The size of the field including a null terminator, when the data type supports null termination.

The data type of the field. The following are valid data types:

Binary
Boolean
Date
Double
Float
Int
Long
Numeric
Short
String
Time
Timestamp
XML

See Also: Appendix B, "IMS/TM Back-end Adapter Data Type Support" for details about the mapping from COBOL data types to IMS/TM back-end adapter data types.

Length The size of the field including a null terminator, when the data type supports null termination.

Note:

Use the Specifications box to specify field properties.

Source Tab

The Source tab displays the XML representation of the adapter metadata.

A sample Source tab is displayed in the following figure:

Description of the illustration xml_src.gif