Descriptor (Flink : Table : Common 2.0-preview1 API)

All Known Implementing Classes:

PreserveWatermarks, Rowtime, Schema, TimestampExtractor, WatermarkStrategy
```
@Deprecated
@Internal
public interface Descriptor
```
Deprecated.
Descriptor was primarily used for the legacy connector stack and have been deprecated. Use TableDescriptor for creating sources and sinks from the Table API.

Interface that adds a set of string-based, normalized properties for describing DDL information.
Typical characteristics of a descriptor are: - descriptors have a default constructor - descriptors themselves contain very little logic - corresponding validators validate the correctness (goal: have a single point of validation)
A descriptor is similar to a builder in a builder pattern, thus, mutable for building properties.

Method Summary

All Methods Instance Methods Abstract Methods Deprecated Methods
Modifier and Type	Method	Description
`Map<String,String>`	`toProperties()`	Deprecated. Converts this descriptor into a set of properties.

- Method Detail
  - toProperties
```
Map<String,String> toProperties()
```
    Deprecated.
    
    Converts this descriptor into a set of properties.