Package groovy.lang

Interface MutableMetaClass

All Superinterfaces:
MetaClass, MetaObjectProtocol
All Known Implementing Classes:
ClosureMetaClass, DelegatingMetaClass, ExpandoMetaClass, HandleMetaClass, MetaClassImpl, MixedInMetaClass, MockProxyMetaClass, OwnedMetaClass, ProxyMetaClass

public interface MutableMetaClass extends MetaClass
An interface that defines methods that implementers of mutable Meta classes should specify. It provides operations to perform mutations on the MetaClass instance.

Whether a MetaClass allows mutation is up to the MetaClass itself and considerations of Thread safety need to be taken into account when making a MetaClass mutable

The default implementation allows mutation of MetaClass instances before initialisation (before the initialize() method is called) but not after, thus ensuring Thread safety once a MetaClass has been constructed and placed in the registry

See Also:
  • Method Details

    • isModified

      boolean isModified()
      Return whether the MetaClass has been modified or not
      True if it has
    • addNewInstanceMethod

      void addNewInstanceMethod(Method method)
      adds a new instance method to this MetaClass. Instance methods are able to overwrite the original methods of the class. Calling this method should not be done after initialise was called.
      method - the method to be added
    • addNewStaticMethod

      void addNewStaticMethod(Method method)
      adds a new static method to this MetaClass. This is only possible as long as initialise was not called.
      method - the method to be added
    • addMetaMethod

      void addMetaMethod(MetaMethod metaMethod)
      Adds a new MetaMethod to the MetaClass
      metaMethod - The MetaMethod to add
    • addMetaBeanProperty

      void addMetaBeanProperty(MetaBeanProperty metaBeanProperty)
      Adds a new MetaBeanProperty to the MetaClass
      metaBeanProperty - The MetaBeanProperty instance