NotNullConstraint (JavaDocs for mmm-entity-bean 0.2.0)

java.lang.Object
- io.github.mmm.entity.bean.sql.constraint.Constraint
- - io.github.mmm.entity.bean.sql.constraint.NotNullConstraint

```
public final class NotNullConstraint
extends Constraint
```
Not null Constraint ensuring that the column cannot have a null value.

Since:

1.0.0

Field Summary

Fields
Modifier and Type Field Description

static String PREFIX
Suggested prefix for the name: "NN_".

static String TYPE
Type "NOT NULL".

Constructor Summary

Constructors
Constructor	Description
`NotNullConstraint(io.github.mmm.property.ReadableProperty<?> column)`	The constructor.
`NotNullConstraint(String name, io.github.mmm.value.PropertyPath<?> column)`	The constructor.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type Method Description

String getType()
- Methods inherited from class io.github.mmm.entity.bean.sql.constraint.Constraint
  createName, createName, getColumns, getName, toString, toString, toStringColumns
- Methods inherited from class java.lang.Object
  clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

- Field Detail
  - TYPE
```
public static final String TYPE
```
    Type "NOT NULL".
    
    See Also:
    
    Constant Field Values
  - PREFIX
```
public static final String PREFIX
```
    Suggested prefix for the name: "NN_".
    
    See Also:
    
    Constant Field Values
- Constructor Detail
  - NotNullConstraint
```
public NotNullConstraint(String name,
                         io.github.mmm.value.PropertyPath<?> column)
```
    The constructor.
    
    Parameters:
    
    name - the name.
    
    column - the (first) column.
  - NotNullConstraint
```
public NotNullConstraint(io.github.mmm.property.ReadableProperty<?> column)
```
    The constructor.
    
    Parameters:
    
    column - the (first) column.
- Method Detail
  - getType
```
public String getType()
```
    Specified by:
    
    getType in class Constraint
    
    Returns:
    
    the type of this Constraint (e.g. "CHECK" or "FOREIGN KEY").