Handler (AutoRes.uk Annotations 11.0.41-beta API)

All Known Implementing Classes:

AssertResourceExists
```
public interface Handler
```
Processes resources from the class path. Implementations MUST:
- Be public
- Have a public no-args constructor
- Be available as compiled types on the compiler classpath
Implementations inherit the limitations of Processor. That is:
1. The result of processing a given input is not a function of the presence or absence of other inputs (orthogonality)
2. Processing the same input produces the same output (consistency)
3. Processing input A followed by processing input B is equivalent to processing B then A (commutativity)
4. Processing an input does not rely on the presence of the output of other annotation processors (independence)
See Also:

ResourceFiles.handler()

Method Summary

All Methods Instance Methods Abstract Methods Default Methods
Modifier and Type	Method	Description
`default Set<ConfigDef>`	`config()`	The configuration supported by this handler.
`void`	`handle(Context context)`	Handles the context resources.
`default boolean`	`validConfig(List<Config> config, Consumer<String> errorReporter)`	Validates the `Context.config()`.

- Method Detail
  - handle
```
void handle(Context context)
     throws Exception
```
    Handles the context resources.
    
    Parameters:
    
    context - processing context
    
    Throws:
    
    Exception - any exception
    
    See Also:
    
    Context.resources()
  - config
```
default Set<ConfigDef> config()
```
    The configuration supported by this handler.
    
    Returns:
    
    empty set by default
  - validConfig
```
default boolean validConfig(List<Config> config,
                            Consumer<String> errorReporter)
```
    Validates the Context.config(). Override to change behaviour.
    
    The default implementation returns true if:
    
    Key names are unique
    
    Key names match config() ConfigDef.key()
    
    Values pass config() ConfigDef.isValid(String)
    Parameters:
    
    config - handler configuration
    
    errorReporter - error message consumer
    
    Returns:
    
    true if the config is valid for this handler