DefinedProctimeAttribute (Flink : Table : Common 2.0.0 API)

```
@Deprecated
@Internal
public interface DefinedProctimeAttribute
```
Deprecated.
This interface will not be supported in the new source design around DynamicTableSource. Use the concept of computed columns instead. See FLIP-95 for more information.

Extends a TableSource to specify a processing time attribute.

Method Summary

All Methods Instance Methods Abstract Methods Deprecated Methods
Modifier and Type	Method	Description
`String`	`getProctimeAttribute()`	Deprecated. Returns the name of a processing time attribute or null if no processing time attribute is present.

- Method Detail
  - getProctimeAttribute
```
@Nullable
String getProctimeAttribute()
```
    Deprecated.
    
    Returns the name of a processing time attribute or null if no processing time attribute is present.
    The referenced attribute must be present in the TableSchema of the TableSource and of type Types.SQL_TIMESTAMP.