FieldRegistry

All Known Implementing Classes:

FieldRegistry.Default
```
public interface FieldRegistry
```
A field registry represents an extendable collection of fields which are identified by their names that are mapped to a given FieldAttributeAppender. Fields can be uniquely identified by their name for a given type since fields are never inherited.

This registry is the counterpart of a MethodRegistry. However, a field registry is implemented simpler since it does not have to deal with complex signatures or inheritance. For the sake of consistency, the field registry follows however a similar pattern without introducing unnecessary complexity.

Nested Class Summary

Nested Classes
Modifier and Type	Interface	Description
`static interface`	`FieldRegistry.Compiled`	Represents a compiled field registry.
`static class`	`FieldRegistry.Default`	An immutable default implementation of a field registry.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`FieldRegistry.Compiled`	`compile(TypeDescription instrumentedType)`	Prepares the field registry for a given instrumented type.
`FieldRegistry`	`prepend(LatentMatcher<? super FieldDescription> matcher, FieldAttributeAppender.Factory fieldAttributeAppenderFactory, java.lang.Object defaultValue, Transformer<FieldDescription> transformer)`	Prepends the given field definition to this field registry, i.e.

- Method Detail
  - prepend
```
FieldRegistry prepend(LatentMatcher<? super FieldDescription> matcher,
                      FieldAttributeAppender.Factory fieldAttributeAppenderFactory,
                      java.lang.Object defaultValue,
                      Transformer<FieldDescription> transformer)
```
    Prepends the given field definition to this field registry, i.e. this configuration is applied first.
    
    Parameters:
    
    matcher - The matcher to identify any field that this definition concerns.
    
    fieldAttributeAppenderFactory - The field attribute appender factory to apply on any matched field.
    
    defaultValue - The default value to write to the field or null if no default value is to be set for the field.
    
    transformer - The field transformer to apply to any matched field.
    
    Returns:
    
    An adapted version of this method registry.
  - compile
```
FieldRegistry.Compiled compile(TypeDescription instrumentedType)
```
    Prepares the field registry for a given instrumented type.
    
    Parameters:
    
    instrumentedType - The instrumented type.
    
    Returns:
    
    A prepared field registry.