```
public interface TypeInstrumentation
```
Interface representing a single type instrumentation. Part of an InstrumentationModule.
Classes implementing TypeInstrumentation should be public and non-final so that it's possible to extend and reuse them in vendor distributions.

Method Summary

All Methods Instance Methods Abstract Methods Default Methods
Modifier and Type	Method	Description
`default net.bytebuddy.matcher.ElementMatcher<ClassLoader>`	`classLoaderOptimization()`	An optimization to short circuit matching in the case where the instrumented library is not even present on the class path.
`Map<? extends net.bytebuddy.matcher.ElementMatcher<? super net.bytebuddy.description.method.MethodDescription>,String>`	`transformers()`	Keys of the returned map are method matchers, values are full names of advice classes that will be applied onto methods that satisfy matcher (key).
`net.bytebuddy.matcher.ElementMatcher<net.bytebuddy.description.type.TypeDescription>`	`typeMatcher()`	Returns a type matcher defining which classes should undergo transformations defined by advices returned by `transformers()`.

- Method Detail
  - classLoaderOptimization
```
default net.bytebuddy.matcher.ElementMatcher<ClassLoader> classLoaderOptimization()
```
    An optimization to short circuit matching in the case where the instrumented library is not even present on the class path.
    Most applications have only a small subset of libraries on their class path, so this ends up being a very useful optimization.
    Some background on type matcher performance:
    Type matchers that only match against the type name are fast, e.g. ElementMatchers.named(String).
    All other type matchers require some level of bytecode inspection, e.g. ElementMatchers.isAnnotatedWith(ElementMatcher).
    Type matchers that need to inspect the super class hierarchy are even more expensive, e.g. AgentElementMatchers.implementsInterface(ElementMatcher). This is because they require inspecting multiple super classes/interfaces as well (which may not even be loaded yet in which case their bytecode has to be read and inspected).
    
    Returns:
    
    A type matcher that rejects classloaders that do not contain desired interfaces or base classes.
  - typeMatcher
```
net.bytebuddy.matcher.ElementMatcher<net.bytebuddy.description.type.TypeDescription> typeMatcher()
```
    Returns a type matcher defining which classes should undergo transformations defined by advices returned by transformers().
  - transformers
```
Map<? extends net.bytebuddy.matcher.ElementMatcher<? super net.bytebuddy.description.method.MethodDescription>,String> transformers()
```
    Keys of the returned map are method matchers, values are full names of advice classes that will be applied onto methods that satisfy matcher (key).

Interface TypeInstrumentation

Method Summary

Method Detail

classLoaderOptimization

typeMatcher

transformers