Constants (FROST-Server.Util 1.13.4 API)

java.lang.Object
- de.fraunhofer.iosb.ilt.frostserver.util.Constants

```
public class Constants
extends Object
```
Author:

scf

Field Summary

Fields
Modifier and Type	Field	Description
`static String[]`	`HTTP_URL_PATTERNS`	This semi-constant (arrays are not real constants) MUST be kept aligned with the WebServlet annotations!
`static ZoneOffset`	`UTC`

Method Summary

All Methods Static Methods Concrete Methods
Modifier and Type	Method	Description
`static <T> T`	`throwIfNullOrTypeNot(Object entity, Class<T> targetClass)`	Throws an IllegalArgumentException if entity is not an instance of targetClass, or if entity is null.
`static <T> T`	`throwIfTypeNot(Object entity, Class<T> targetClass)`	Throws an IllegalArgumentException if entity is not an instance of targetClass.

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

- Field Detail
  - UTC
```
public static final ZoneOffset UTC
```
  - HTTP_URL_PATTERNS
```
public static final String[] HTTP_URL_PATTERNS
```
    This semi-constant (arrays are not real constants) MUST be kept aligned with the WebServlet annotations!
- Method Detail
  - throwIfNullOrTypeNot
```
public static <T> T throwIfNullOrTypeNot(Object entity,
                                         Class<T> targetClass)
```
    Throws an IllegalArgumentException if entity is not an instance of targetClass, or if entity is null. Returns the entity so calls can be chained.
    
    Type Parameters:
    
    T - The type of the entity (auto detected)
    
    Parameters:
    
    entity - The entity to check the class of.
    
    targetClass - The class to check the entity against.
    
    Returns:
    
    The entity to check.
  - throwIfTypeNot
```
public static <T> T throwIfTypeNot(Object entity,
                                   Class<T> targetClass)
```
    Throws an IllegalArgumentException if entity is not an instance of targetClass. Does not throw if entity is null. Returns the entity so calls can be chained.
    
    Type Parameters:
    
    T - The type of the entity (auto detected)
    
    Parameters:
    
    entity - The entity to check the class of.
    
    targetClass - The class to check the entity against.
    
    Returns:
    
    The entity to check.