# aws-cdk-lib.interfaces.aws_qldb

| Name | Kind | Summary |
| --- | --- | --- |
| [`ILedgerRef`](/v2/docs/aws-cdk-lib.interfaces.aws_qldb.ILedgerRef) | Interface | Indicates that this resource can be referenced as a Ledger. |
| [`IStreamRef`](/v2/docs/aws-cdk-lib.interfaces.aws_qldb.IStreamRef) | Interface | Indicates that this resource can be referenced as a Stream. |
| [`LedgerReference`](/v2/docs/aws-cdk-lib.interfaces.aws_qldb.LedgerReference) | Struct | A reference to a Ledger resource. |
| [`StreamReference`](/v2/docs/aws-cdk-lib.interfaces.aws_qldb.StreamReference) | Struct | A reference to a Stream resource. |