TableChange.AddUniqueConstraint (Flink : Table : Common 2.1.0 API)

java.lang.Object
- org.apache.flink.table.catalog.TableChange.AddUniqueConstraint

All Implemented Interfaces:: TableChange, TableChange.CatalogTableChange

Enclosing interface:: TableChange

@PublicEvolving
public static class TableChange.AddUniqueConstraint
extends Object
implements TableChange.CatalogTableChange

A table change to add a unique constraint.

It is equal to the following statement:

    ALTER TABLE <table_name> ADD PRIMARY KEY (<column_name>...) NOT ENFORCED;

Nested Class Summary
- Nested classes/interfaces inherited from interface org.apache.flink.table.catalog.TableChange
  TableChange.AddColumn, TableChange.AddDistribution, TableChange.AddUniqueConstraint, TableChange.AddWatermark, TableChange.After, TableChange.CatalogTableChange, TableChange.ColumnPosition, TableChange.DropColumn, TableChange.DropConstraint, TableChange.DropDistribution, TableChange.DropWatermark, TableChange.First, TableChange.MaterializedTableChange, TableChange.ModifyColumn, TableChange.ModifyColumnComment, TableChange.ModifyColumnName, TableChange.ModifyColumnPosition, TableChange.ModifyDefinitionQuery, TableChange.ModifyDistribution, TableChange.ModifyPhysicalColumnType, TableChange.ModifyRefreshHandler, TableChange.ModifyRefreshStatus, TableChange.ModifyUniqueConstraint, TableChange.ModifyWatermark, TableChange.ResetOption, TableChange.SetOption

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`boolean`	`equals(Object o)`
`UniqueConstraint`	`getConstraint()`	Returns the unique constraint to add.
`int`	`hashCode()`
`String`	`toString()`

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

- Method Detail
  - getConstraint
```
public UniqueConstraint getConstraint()
```
    Returns the unique constraint to add.
  - equals
```
public boolean equals(Object o)
```
    Overrides:
    
    equals in class Object
  - hashCode
```
public int hashCode()
```
    Overrides:
    
    hashCode in class Object
  - toString
```
public String toString()
```
    Overrides:
    
    toString in class Object