ConstraintRegistry (Alfresco Data Model 9.21 API)

java.lang.Object
- org.alfresco.repo.dictionary.constraint.ConstraintRegistry

```
public class ConstraintRegistry
extends Object
```
A registry of constraints.

Since:

3.2

Author:

Derek Hulley

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`Constraint`	`getConstraint(String name)`	Get the constraint by name
`static ConstraintRegistry`	`getInstance()`
`void`	`register(String name, Constraint constraint)`	Register the constraint by name

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

- Method Detail
  - getInstance
```
public static ConstraintRegistry getInstance()
```
    Returns:
    
    Returns the singleton
  - register
```
public void register(String name,
                     Constraint constraint)
```
    Register the constraint by name
  - getConstraint
```
public Constraint getConstraint(String name)
```
    Get the constraint by name
    
    Parameters:
    
    name - the name by which the constraint was registered
    
    Returns:
    
    Returns the constraint or null if it does not exist.