A meta-adapter defines a class of connections that are going to be made available to users. A single meta-adapter is used by many users.
You can perform the following tasks using meta-adapters:
psadmin list-ssoadapters in Sun Java System Portal Server 7.2 Command-Line Reference
Select the SSO Adapter tab.
From List of Meta-Adapters click New Meta—Adapter to launch the wizard.
Follow the instructions and then click OK to create the specified Meta-Adapter.
psadmin create-ssoadapter-template in Sun Java System Portal Server 7.2 Command-Line Reference
psadmin list-ssoadapters in Sun Java System Portal Server 7.2 Command-Line Reference
The only list of adapters allowed by the CLI is by DN.