ComponentOverride (Tapestry API - 5.7.2)乐学网一站式学习平台

All Known Implementing Classes:

ComponentOverrideImpl
```
@UsesMappedConfiguration(key=java.lang.Class.class,
                         value=java.lang.Class.class)
public interface ComponentOverride
```
Service that allows replacing one component, page or mixin class by another without changing the sources. This service shouldn't be used directly: it's not an internal service just because it receives contributions. Contributions to it are mapped: the key is the component, page or mixin class to be replaced, the value is the replacement.

Since:

5.4

See Also:

ComponentClassResolver

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`Class`	`getReplacement(String className)`	Returns the replacement for a class given its name.
`boolean`	`hasReplacements()`	Returns true if the service configuration is non-empty.

- Method Detail
  - hasReplacements
```
boolean hasReplacements()
```
    Returns true if the service configuration is non-empty.
  - getReplacement
```
Class getReplacement(String className)
```
    Returns the replacement for a class given its name.
    
    Parameters:
    
    className - the fully qualified class name.
    
    Returns:
    
    a Class or null.