MetaClassRegistry (Groovy 5.0.1)

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Summary:
Nested
Method

| Detail:
Method

Package: groovy.lang

[Java] Interface MetaClassRegistry

```
public interface MetaClassRegistry
```
A MetaClassRegistry is an object that is responsible for managing a cache of MetaClass instances. Each java.lang.Class instance has an associated MetaClass and client code can query this interface for the MetaClass for a given associated java.lang.Class
See Also:
MetaClass

Nested Class Summary

Nested classes
Modifiers	Name	Description
`class`	`MetaClassRegistry.MetaClassCreationHandle`	Class used as base for the creation of MetaClass implementations.

Methods Summary

Methods
Type Params	Return Type	Name and description
	`public void`	`addMetaClassRegistryChangeEventListener (MetaClassRegistryChangeEventListener listener)` Adds a metaclass change listener for constant metaclasses
	`public void`	`addNonRemovableMetaClassRegistryChangeEventListener (MetaClassRegistryChangeEventListener listener)` Adds a metaclass change listener for constant metaclasses.
	`public MetaClass`	`getMetaClass (Class theClass)` The main function of the registry If a metaclass exists then return it otherwise create one, put it in the registry and return it
	`public MetaClassRegistry.MetaClassCreationHandle`	`getMetaClassCreationHandler ()` Retrieves the MetaClassCreationHandle that is responsible for constructing MetaClass instances
	`public MetaClassRegistryChangeEventListener[]`	`getMetaClassRegistryChangeEventListeners ()` Returns all registered class change listener for constant metaclasses.
	`public Iterator`	`iterator ()` Gets a snapshot of the current constant metaclasses and returns it as Iterator.
	`public void`	`removeMetaClass (Class theClass)` Removes a cached MetaClass from the registry
	`public void`	`removeMetaClassRegistryChangeEventListener (MetaClassRegistryChangeEventListener listener)` Removes a metaclass change listener for constant metaclasses
	`public void`	`setMetaClass (Class theClass, MetaClass theMetaClass)` Adds a metaclass to the registry for the given class
	`public void`	`setMetaClassCreationHandle (MetaClassRegistry.MetaClassCreationHandle handle)` Sets the MetaClassCreationHandle instance that is responsible for constructing instances

- Method Detail
  - public void addMetaClassRegistryChangeEventListener(MetaClassRegistryChangeEventListener listener)
    
    Adds a metaclass change listener for constant metaclasses
    Parameters:
    listener - - the update listener
  - public void addNonRemovableMetaClassRegistryChangeEventListener(MetaClassRegistryChangeEventListener listener)
    
    Adds a metaclass change listener for constant metaclasses. This listener cannot be removed!
    Parameters:
    listener - - the update listener
  - public MetaClass getMetaClass(Class theClass)
    
    The main function of the registry If a metaclass exists then return it otherwise create one, put it in the registry and return it
  - public MetaClassRegistry.MetaClassCreationHandle getMetaClassCreationHandler()
    
    Retrieves the MetaClassCreationHandle that is responsible for constructing MetaClass instances
    Returns:
    The MetaClassCreationHandle instance
  - public MetaClassRegistryChangeEventListener[] getMetaClassRegistryChangeEventListeners()
    
    Returns all registered class change listener for constant metaclasses.
    Returns:
    an array containing all change listener
  - public Iterator iterator()
    
    Gets a snapshot of the current constant metaclasses and returns it as Iterator. Modifications done using this Iterator will not cause a ConcurrentModificationException. If a MetaClass is removed using this Iterator, then the MetaClass will only be removed if the MetaClass was not replaced by another MetaClass in the meantime. If a MetaClass is added while using this Iterator, then it will be part of the Iteration. If a MetaClass replaces another constant metaclass, then the Iteration might show two metaclasses for the same class.
    Note: This Iterator may not be used with multiple threads.
    Returns:
    Iterator for the constant metaclasses
  - public void removeMetaClass(Class theClass)
    
    Removes a cached MetaClass from the registry
    Parameters:
    theClass - The Java class of the MetaClass to remove
  - public void removeMetaClassRegistryChangeEventListener(MetaClassRegistryChangeEventListener listener)
    
    Removes a metaclass change listener for constant metaclasses
    Parameters:
    listener - - the update listener
  - public void setMetaClass(Class theClass, MetaClass theMetaClass)
    
    Adds a metaclass to the registry for the given class
    Parameters:
    theClass - The class
    theMetaClass - The MetaClass for theClass
  - public void setMetaClassCreationHandle(MetaClassRegistry.MetaClassCreationHandle handle)
    
    Sets the MetaClassCreationHandle instance that is responsible for constructing instances
    Parameters:
    handle - The handle instance

Summary:
Nested
Method

| Detail:
Method

[Java] Interface MetaClassRegistry

Nested Class Summary

Methods Summary

Method Detail

public void addMetaClassRegistryChangeEventListener(MetaClassRegistryChangeEventListener listener)

public void addNonRemovableMetaClassRegistryChangeEventListener(MetaClassRegistryChangeEventListener listener)

public MetaClass getMetaClass(Class theClass)

public MetaClassRegistry.MetaClassCreationHandle getMetaClassCreationHandler()

public MetaClassRegistryChangeEventListener[] getMetaClassRegistryChangeEventListeners()

public Iterator iterator()

public void removeMetaClass(Class theClass)

public void removeMetaClassRegistryChangeEventListener(MetaClassRegistryChangeEventListener listener)

public void setMetaClass(Class theClass, MetaClass theMetaClass)

public void setMetaClassCreationHandle(MetaClassRegistry.MetaClassCreationHandle handle)