ColumnList (Flink : Table : Common 2.1.0 API)

java.lang.Object
- org.apache.flink.types.ColumnList

All Implemented Interfaces:

Serializable
```
@PublicEvolving
public final class ColumnList
extends Object
implements Serializable
```
Represents a list of columns.
This type is the return type of calls to DESCRIPTOR(`c0`, `c1`). The type is intended to be used in arguments of ProcessTableFunctions.

See Also:

DataTypes.DESCRIPTOR(), Serialized Form

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`List<DataType>`	`getDataTypes()`	Returns a list of data types (if available).
`List<String>`	`getNames()`	Returns a list of column names.
`static ColumnList`	`of(List<String> names)`
`static ColumnList`	`of(List<String> names, List<DataType> dataTypes)`
`String`	`toString()`

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

- Method Detail
  - of
```
public static ColumnList of(List<String> names,
                            List<DataType> dataTypes)
```
  - of
```
public static ColumnList of(List<String> names)
```
  - getNames
```
public List<String> getNames()
```
    Returns a list of column names.
    For example, it returns [a, b, c] for function calls like DESCRIPTOR(a INT, b STRING, c BOOLEAN) or DESCRIPTOR(a, b, c).
  - getDataTypes
```
public List<DataType> getDataTypes()
```
    Returns a list of data types (if available).
    For example, it returns [INT, STRING, BOOLEAN] for function calls like DESCRIPTOR(a INT, b STRING, c BOOLEAN).
    Note: The list might be empty if only names were passed to the descriptor function like DESCRIPTOR(a, b, c). Thus, the list is either empty or has the same number of elements as getNames().
  - toString
```
public String toString()
```
    Overrides:
    
    toString in class Object