MetaClassImpl (Groovy 2.4.3)

java.lang.Object
- groovy.lang.MetaClassImpl

All Implemented Interfaces:

MetaClass, MetaObjectProtocol, MutableMetaClass

Direct Known Subclasses:

ClosureMetaClass, ExpandoMetaClass, ProxyMetaClass
```
public class MetaClassImpl
extends Object
implements MetaClass, MutableMetaClass
```
Allows methods to be dynamically added to existing classes at runtime

Author:

James Strachan, Guillaume Laforge, Jochen "blackdrag" Theodorou, Graeme Rocher, Alex Tkachman, Roshan Dawrani

See Also:
MetaClass

Nested Class Summary

Nested Classes
Modifier and Type	Class and Description
`static class`	`MetaClassImpl.Index`
`static class`	`MetaClassImpl.MetaConstructor` This is a helper class introduced in Groovy 2.1.0, which is used only by indy.

Field Summary

Fields
Modifier and Type	Field and Description
`static Object[]`	`EMPTY_ARGUMENTS`
`protected MetaMethod`	`getPropertyMethod`
`protected static String`	`INVOKE_METHOD_METHOD`
`protected MetaMethod`	`invokeMethodMethod`
`protected boolean`	`isGroovyObject`
`protected boolean`	`isMap`
`protected MetaMethodIndex`	`metaMethodIndex`
`protected static String`	`METHOD_MISSING`
`protected static String`	`PROPERTY_MISSING`
`protected MetaClassRegistry`	`registry`
`protected MetaMethod`	`setPropertyMethod`
`protected static String`	`STATIC_METHOD_MISSING`
`protected static String`	`STATIC_PROPERTY_MISSING`
`protected CachedClass`	`theCachedClass`
`protected Class`	`theClass`

Constructor Summary

Constructors
Constructor and Description
`MetaClassImpl(Class theClass)` Constructor that sets the methods to null
`MetaClassImpl(Class theClass, MetaMethod[] add)` Constructor
`MetaClassImpl(MetaClassRegistry registry, Class theClass)` Constructor with registry setting methods to null
`MetaClassImpl(MetaClassRegistry registry, Class theClass, MetaMethod[] add)` Constructor with registry

Method Summary

Methods
Modifier and Type	Method and Description
`void`	`addMetaBeanProperty(MetaBeanProperty mp)` Adds a new MetaBeanProperty to this MetaClass
`void`	`addMetaMethod(MetaMethod method)` adds a MetaMethod to this class.
`protected void`	`addMetaMethodToIndex(MetaMethod method, MetaMethodIndex.Header header)`
`void`	`addNewInstanceMethod(Method method)` Adds an instance method to this metaclass.
`void`	`addNewStaticMethod(Method method)` Adds a static method to this metaclass.
`protected void`	`applyPropertyDescriptors(PropertyDescriptor[] propertyDescriptors)`
`protected void`	`checkIfGroovyObjectMethod(MetaMethod metaMethod)` Checks if the metaMethod is a method from the GroovyObject interface such as setProperty, getProperty and invokeMethod
`protected void`	`checkInitalised()` checks if the initialisation of the class id complete.
`protected Object`	`chooseMethod(String methodName, Object methodOrList, Class[] arguments)` Chooses the correct method to use from a list of methods which match by name.
`protected void`	`clearInvocationCaches()` remove all method call cache entries.
`CallSite`	`createConstructorSite(CallSite site, Object[] args)` Create a CallSite
`CallSite`	`createPogoCallCurrentSite(CallSite site, Class sender, Object[] args)` Create a CallSite
`CallSite`	`createPogoCallSite(CallSite site, Object[] args)` Create a CallSite
`CallSite`	`createPojoCallSite(CallSite site, Object receiver, Object[] args)` Create a CallSite
`CallSite`	`createStaticSite(CallSite site, Object[] args)` Create a CallSite
`protected void`	`dropMethodCache(String name)`
`protected void`	`dropStaticMethodCache(String name)`
`protected static MetaMethod`	`findMethodInClassHierarchy(Class instanceKlazz, String methodName, Class[] arguments, MetaClass metaClass)`
`protected MetaMethod`	`findMixinMethod(String methodName, Class[] arguments)`
`protected static MetaMethod`	`findOwnMethod(Class instanceKlazz, String methodName, Class[] arguments, MetaClass metaClass, MetaMethod method)`
`protected MetaBeanProperty`	`findPropertyInClassHierarchy(String propertyName, CachedClass theClass)`
`MetaMethod[]`	`getAdditionalMetaMethods()` Retrieves a list of additional MetaMethods held by this class
`Object`	`getAttribute(Class sender, Object receiver, String messageName, boolean useSuper)` Retrieves the value of an attribute (field).
`Object`	`getAttribute(Class sender, Object object, String attribute, boolean useSuper, boolean fromInsideClass)` Retrieves the value of an attribute (field).
`Object`	`getAttribute(Object object, String attribute)` Retrieves the value of an attribute (field).
`ClassInfo`	`getClassInfo()` Returns ClasInfo for the contained Class
`ClassNode`	`getClassNode()` Obtains a reference to the original AST for the MetaClass if it is available at runtime
`MetaProperty`	`getEffectiveGetMetaProperty(Class sender, Object object, String name, boolean useSuper)`
`MetaMethod`	`getMetaMethod(String name, Object[] argTypes)` Retrieves an instance MetaMethod for the given name and argument values, using the types of the argument values to establish the chosen MetaMethod
`List<MetaMethod>`	`getMetaMethods()` Retrieves the list of MetaMethods held by this class
`MetaProperty`	`getMetaProperty(String name)` Returns a MetaProperty for the given name or null if it doesn't exist
`List<MetaMethod>`	`getMethods()` Retrieves the list of Methods held by the class
`MetaMethod`	`getMethodWithCaching(Class sender, String methodName, Object[] arguments, boolean isCallToSuper)`
`MetaMethod`	`getMethodWithoutCaching(Class sender, String methodName, Class[] arguments, boolean isCallToSuper)`
`List<MetaProperty>`	`getProperties()` Get all the properties defined for this type
`Object`	`getProperty(Class sender, Object object, String name, boolean useSuper, boolean fromInsideClass)` Retrieves a property on the given receiver for the specified arguments.
`Object`	`getProperty(Object object, String property)` Retrieves a property on the given object for the specified arguments.
`MetaClassRegistry`	`getRegistry()` Returns the registry for this metaclass
`MetaMethod`	`getStaticMetaMethod(String name, Object[] argTypes)` Retrieves a static MetaMethod for the given name and argument values, using the types of the arguments to establish the chosen MetaMethod
`protected Object`	`getSubclassMetaMethods(String methodName)`
`protected LinkedList<CachedClass>`	`getSuperClasses()`
`CachedClass`	`getTheCachedClass()` Returns the cached class for this metaclass
`Class`	`getTheClass()` Returns the class this object this is the metaclass of.
`int`	`getVersion()` Returns version of the contained Class
`MetaProperty`	`hasProperty(Object obj, String name)` Returns true of the implementing MetaClass has a property of the given name
`void`	`incVersion()` Increments version of the contained Class
`void`	`initialize()` Complete the initialisation process.
`Object`	`invokeConstructor(Object[] arguments)` Invokes a constructor for the given arguments.
`Object`	`invokeMethod(Class sender, Object object, String methodName, Object[] originalArguments, boolean isCallToSuper, boolean fromInsideClass)` Invokes a method on the given receiver for the specified arguments.
`Object`	`invokeMethod(Object object, String methodName, Object arguments)` Invoke a method on the given object with the given arguments.
`Object`	`invokeMethod(Object object, String methodName, Object[] originalArguments)` Invokes a method on the given receiver for the specified arguments.
`Object`	`invokeMissingMethod(Object instance, String methodName, Object[] arguments)` Invoke a missing method on the given object with the given arguments.
`Object`	`invokeMissingProperty(Object instance, String propertyName, Object optionalValue, boolean isGetter)` Invoke a missing property on the given object with the given arguments.
`Object`	`invokeStaticMethod(Object object, String methodName, Object[] arguments)` Invokes a static method on the given Object with the given name and arguments.
`protected Object`	`invokeStaticMissingProperty(Object instance, String propertyName, Object optionalValue, boolean isGetter)` Hook to deal with the case of MissingProperty for static properties.
`boolean`	`isGroovyObject()` Return wether the class represented by this metaclass instance is an instance of the GroovyObject class
`protected boolean`	`isInitialized()`
`boolean`	`isModified()` Returns wether this metaclassimpl has been modified.
`protected void`	`onGetPropertyFoundInHierarchy(MetaMethod method)`
`protected void`	`onInvokeMethodFoundInHierarchy(MetaMethod method)`
`protected void`	`onMixinMethodFound(MetaMethod method)`
`protected void`	`onSetPropertyFoundInHierarchy(MetaMethod method)`
`protected void`	`onSuperMethodFoundInHierarchy(MetaMethod method)`
`protected void`	`onSuperPropertyFoundInHierarchy(MetaBeanProperty property)`
`MetaMethod`	`pickMethod(String methodName, Class[] arguments)` Selects a method by name and argument classes.
`List`	`respondsTo(Object obj, String name)` Returns an object satisfying Groovy truth if the implementing MetaClass responds to a method with the given name regardless of arguments.
`List`	`respondsTo(Object obj, String name, Object[] argTypes)` Returns an object satisfying Groovy truth if the implementing MetaClass responds to a method with the given name and arguments types.
`Constructor`	`retrieveConstructor(Class[] arguments)`
`MetaMethod`	`retrieveConstructor(Object[] arguments)` This is a helper method added in Groovy 2.1.0, which is used only by indy.
`MetaMethod`	`retrieveStaticMethod(String methodName, Object[] arguments)`
`int`	`selectConstructorAndTransformArguments(int numberOfConstructors, Object[] arguments)` Internal method to support Groovy runtime.
`void`	`setAttribute(Class sender, Object object, String attribute, Object newValue, boolean useSuper, boolean fromInsideClass)` Sets an attribute on the given receiver for the specified arguments.
`void`	`setAttribute(Object object, String attribute, Object newValue)` Sets the value of an attribute (field).
`void`	`setProperties(Object bean, Map map)` Sets a number of bean properties from the given Map where the keys are the String names of properties and the values are the values of the properties to set
`void`	`setProperty(Class sender, Object object, String name, Object newValue, boolean useSuper, boolean fromInsideClass)` Retrieves a property on the given receiver for the specified arguments.
`void`	`setProperty(Object object, String property, Object newValue)` Sets a property on the given object for the specified arguments.
`String`	`toString()` Returns a string representation of this metaclass

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

- Field Detail
  - STATIC_METHOD_MISSING
```
protected static final String STATIC_METHOD_MISSING
```
    See Also:
    Constant Field Values
  - STATIC_PROPERTY_MISSING
```
protected static final String STATIC_PROPERTY_MISSING
```
    See Also:
    Constant Field Values
  - METHOD_MISSING
```
protected static final String METHOD_MISSING
```
    See Also:
    Constant Field Values
  - PROPERTY_MISSING
```
protected static final String PROPERTY_MISSING
```
    See Also:
    Constant Field Values
  - INVOKE_METHOD_METHOD
```
protected static final String INVOKE_METHOD_METHOD
```
    See Also:
    Constant Field Values
  - theClass
```
protected final Class theClass
```
  - theCachedClass
```
protected final CachedClass theCachedClass
```
  - getPropertyMethod
```
protected MetaMethod getPropertyMethod
```
  - invokeMethodMethod
```
protected MetaMethod invokeMethodMethod
```
  - setPropertyMethod
```
protected MetaMethod setPropertyMethod
```
  - registry
```
protected MetaClassRegistry registry
```
  - isGroovyObject
```
protected final boolean isGroovyObject
```
  - isMap
```
protected final boolean isMap
```
  - EMPTY_ARGUMENTS
```
public static final Object[] EMPTY_ARGUMENTS
```
  - metaMethodIndex
```
protected final MetaMethodIndex metaMethodIndex
```
- Constructor Detail
  - MetaClassImpl
```
public MetaClassImpl(Class theClass,
             MetaMethod[] add)
```
    Constructor
    
    Parameters:
    theClass - The class this is the metaclass dor
    add - The methods for this class
  - MetaClassImpl
```
public MetaClassImpl(Class theClass)
```
    Constructor that sets the methods to null
    
    Parameters:
    theClass - The class this is the metaclass dor
  - MetaClassImpl
```
public MetaClassImpl(MetaClassRegistry registry,
             Class theClass,
             MetaMethod[] add)
```
    Constructor with registry
    
    Parameters:
    registry - The metaclass registry for this MetaClass
    theClass - The class
    add - The methods
  - MetaClassImpl
```
public MetaClassImpl(MetaClassRegistry registry,
             Class theClass)
```
    Constructor with registry setting methods to null
    
    Parameters:
    registry - The metaclass registry for this MetaClass
    theClass - The class
- Method Detail
  - getTheCachedClass
```
public final CachedClass getTheCachedClass()
```
    Returns the cached class for this metaclass
    
    Returns:
    The cached class.
  - getRegistry
```
public MetaClassRegistry getRegistry()
```
    Returns the registry for this metaclass
    
    Returns:
    The resgistry
  - respondsTo
```
public List respondsTo(Object obj,
              String name,
              Object[] argTypes)
```
    Description copied from interface: MetaObjectProtocol
    
    Returns an object satisfying Groovy truth if the implementing MetaClass responds to a method with the given name and arguments types.
    Note that this method's return value is based on realised methods and does not take into account objects or classes that implement invokeMethod or methodMissing
    This method is "safe" in that it will always return a value and never throw an exception
    
    Specified by:
    
    respondsTo in interface MetaObjectProtocol
    
    Parameters:
    obj - The object to inspect
    name - The name of the method of interest
    argTypes - The argument types to match against
    
    Returns:
    A List of MetaMethods matching the argument types which will be empty if no matching methods exist
    See Also:
    MetaObjectProtocol.respondsTo(Object, String, Object[])
  - respondsTo
```
public List respondsTo(Object obj,
              String name)
```
    Description copied from interface: MetaObjectProtocol
    
    Returns an object satisfying Groovy truth if the implementing MetaClass responds to a method with the given name regardless of arguments. In other words this method will return for foo() and foo(String).
    Note that this method's return value is based on realised methods and does not take into account objects or classes that implement invokeMethod or methodMissing
    This method is "safe" in that it will always return a value and never throw an exception
    
    Specified by:
    
    respondsTo in interface MetaObjectProtocol
    
    Parameters:
    obj - The object to inspect
    name - The name of the method of interest
    
    Returns:
    A List of MetaMethods which will be empty if no methods with the given name exist
    See Also:
    MetaObjectProtocol.respondsTo(Object, String)
  - hasProperty
```
public MetaProperty hasProperty(Object obj,
                       String name)
```
    Description copied from interface: MetaObjectProtocol
    
    Returns true of the implementing MetaClass has a property of the given name
    Note that this method will only return true for realised properties and does not take into account implementation of getProperty or propertyMissing
    
    Specified by:
    
    hasProperty in interface MetaObjectProtocol
    
    Parameters:
    obj - The object to inspect
    name - The name of the property
    
    Returns:
    The MetaProperty or null if it doesn't exist
    See Also:
    MetaObjectProtocol.hasProperty(Object,String)
  - getMetaProperty
```
public MetaProperty getMetaProperty(String name)
```
    Description copied from interface: MetaObjectProtocol
    
    Returns a MetaProperty for the given name or null if it doesn't exist
    
    Specified by:
    
    getMetaProperty in interface MetaObjectProtocol
    
    Parameters:
    name - The name of the MetaProperty
    
    Returns:
    A MetaProperty or null
    See Also:
    MetaObjectProtocol.getMetaProperty(String)
  - getStaticMetaMethod
```
public MetaMethod getStaticMetaMethod(String name,
                             Object[] argTypes)
```
    Description copied from interface: MetaObjectProtocol
    
    Retrieves a static MetaMethod for the given name and argument values, using the types of the arguments to establish the chosen MetaMethod
    
    Specified by:
    
    getStaticMetaMethod in interface MetaObjectProtocol
    
    Parameters:
    name - The name of the MetaMethod
    argTypes - The argument types
    
    Returns:
    A MetaMethod or null if it doesn't exist
    See Also:
    MetaObjectProtocol.getStaticMetaMethod(String, Object[])
  - getMetaMethod
```
public MetaMethod getMetaMethod(String name,
                       Object[] argTypes)
```
    Description copied from interface: MetaObjectProtocol
    
    Retrieves an instance MetaMethod for the given name and argument values, using the types of the argument values to establish the chosen MetaMethod
    
    Specified by:
    
    getMetaMethod in interface MetaObjectProtocol
    
    Parameters:
    name - The name of the MetaMethod
    argTypes - Array containing - 1) the argument values (using which their types are then inferred), or 2) the corresponding argument types
    
    Returns:
    A MetaMethod or null if it doesn't exist
    See Also:
    MetaObjectProtocol.getMetaMethod(String, Object[])
  - getTheClass
```
public Class getTheClass()
```
    Returns the class this object this is the metaclass of.
    
    Specified by:
    
    getTheClass in interface MetaObjectProtocol
    
    Returns:
    The class contained by this metaclass
  - isGroovyObject
```
public boolean isGroovyObject()
```
    Return wether the class represented by this metaclass instance is an instance of the GroovyObject class
    
    Returns:
    true if this is a groovy class, false otherwise.
  - getSuperClasses
```
protected LinkedList<CachedClass> getSuperClasses()
```
  - isModified
```
public boolean isModified()
```
    Returns wether this metaclassimpl has been modified. Since MetaClassImpl is not designed for modificaiton this method always returns false
    
    Specified by:
    
    isModified in interface MutableMetaClass
    
    Returns:
    false
  - addNewInstanceMethod
```
public void addNewInstanceMethod(Method method)
```
    Adds an instance method to this metaclass.
    
    Specified by:
    
    addNewInstanceMethod in interface MutableMetaClass
    
    Parameters:
    method - The method to be added
  - addNewStaticMethod
```
public void addNewStaticMethod(Method method)
```
    Adds a static method to this metaclass.
    
    Specified by:
    
    addNewStaticMethod in interface MutableMetaClass
    
    Parameters:
    method - The method to be added
  - invokeMethod
```
public Object invokeMethod(Object object,
                  String methodName,
                  Object arguments)
```
    Invoke a method on the given object with the given arguments.
    
    Specified by:
    
    invokeMethod in interface MetaObjectProtocol
    
    Parameters:
    object - The object the method should be invoked on.
    methodName - The name of the method to invoke.
    arguments - The arguments to the invoked method as null, a Tuple, an array or a single argument of any type.
    
    Returns:
    The result of the method invocation.
    See Also:
    MetaObjectProtocol.invokeMethod(Object, String, Object[])
  - invokeMissingMethod
```
public Object invokeMissingMethod(Object instance,
                         String methodName,
                         Object[] arguments)
```
    Invoke a missing method on the given object with the given arguments.
    
    Specified by:
    
    invokeMissingMethod in interface MetaClass
    
    Parameters:
    instance - The object the method should be invoked on.
    methodName - The name of the method to invoke.
    arguments - The arguments to the invoked method.
    
    Returns:
    The result of the method invocation.
    See Also:
    MissingMethodException
  - invokeMissingProperty
```
public Object invokeMissingProperty(Object instance,
                           String propertyName,
                           Object optionalValue,
                           boolean isGetter)
```
    Invoke a missing property on the given object with the given arguments.
    
    Specified by:
    
    invokeMissingProperty in interface MetaClass
    
    Parameters:
    instance - The object the method should be invoked on.
    propertyName - The name of the property to invoke.
    optionalValue - The (optional) new value for the property
    isGetter - Wether the method is a getter
    
    Returns:
    The result of the method invocation.
  - onSuperPropertyFoundInHierarchy
```
protected void onSuperPropertyFoundInHierarchy(MetaBeanProperty property)
```
  - onMixinMethodFound
```
protected void onMixinMethodFound(MetaMethod method)
```
  - onSuperMethodFoundInHierarchy
```
protected void onSuperMethodFoundInHierarchy(MetaMethod method)
```
  - onInvokeMethodFoundInHierarchy
```
protected void onInvokeMethodFoundInHierarchy(MetaMethod method)
```
  - onSetPropertyFoundInHierarchy
```
protected void onSetPropertyFoundInHierarchy(MetaMethod method)
```
  - onGetPropertyFoundInHierarchy
```
protected void onGetPropertyFoundInHierarchy(MetaMethod method)
```
  - invokeStaticMissingProperty
```
protected Object invokeStaticMissingProperty(Object instance,
                                 String propertyName,
                                 Object optionalValue,
                                 boolean isGetter)
```
    Hook to deal with the case of MissingProperty for static properties. The method will look attempt to look up "propertyMissing" handlers and invoke them otherwise thrown a MissingPropertyException
    
    Parameters:
    instance - The instance
    propertyName - The name of the property
    optionalValue - The value in the case of a setter
    isGetter - True if its a getter
    
    Returns:
    The value in the case of a getter or a MissingPropertyException
  - invokeMethod
```
public Object invokeMethod(Object object,
                  String methodName,
                  Object[] originalArguments)
```
    Invokes a method on the given receiver for the specified arguments. The MetaClass will attempt to establish the method to invoke based on the name and arguments provided.
    
    Specified by:
    
    invokeMethod in interface MetaObjectProtocol
    
    Parameters:
    object - The object which the method was invoked on
    methodName - The name of the method
    originalArguments - The arguments to the method
    
    Returns:
    The return value of the method
    See Also:
    MetaClass.invokeMethod(Class, Object, String, Object[], boolean, boolean)
  - invokeMethod
```
public Object invokeMethod(Class sender,
                  Object object,
                  String methodName,
                  Object[] originalArguments,
                  boolean isCallToSuper,
                  boolean fromInsideClass)
```
    Invokes a method on the given receiver for the specified arguments. The sender is the class that invoked the method on the object. The MetaClass will attempt to establish the method to invoke based on the name and arguments provided.
    The isCallToSuper and fromInsideClass help the Groovy runtime perform optimisations on the call to go directly to the super class if necessary
    
    Specified by:
    
    invokeMethod in interface MetaClass
    
    Parameters:
    sender - The java.lang.Class instance that invoked the method
    object - The object which the method was invoked on
    methodName - The name of the method
    originalArguments - The arguments to the method
    isCallToSuper - Whether the method is a call to a super class method
    fromInsideClass - Whether the call was invoked from the inside or the outside of the class
    
    Returns:
    The return value of the method
    See Also:
    MetaClass.invokeMethod(Class, Object, String, Object[], boolean, boolean)
  - getMethodWithCaching
```
public MetaMethod getMethodWithCaching(Class sender,
                              String methodName,
                              Object[] arguments,
                              boolean isCallToSuper)
```
  - retrieveConstructor
```
public Constructor retrieveConstructor(Class[] arguments)
```
  - retrieveStaticMethod
```
public MetaMethod retrieveStaticMethod(String methodName,
                              Object[] arguments)
```
  - getMethodWithoutCaching
```
public MetaMethod getMethodWithoutCaching(Class sender,
                                 String methodName,
                                 Class[] arguments,
                                 boolean isCallToSuper)
```
  - invokeStaticMethod
```
public Object invokeStaticMethod(Object object,
                        String methodName,
                        Object[] arguments)
```
    Description copied from interface: MetaObjectProtocol
    
    Invokes a static method on the given Object with the given name and arguments.
    The Object can either be an instance of the class that this MetaObjectProtocol instance applies to or the java.lang.Class instance itself. If a method cannot be invoked a MissingMethodException is will be thrown
    
    Specified by:
    
    invokeStaticMethod in interface MetaObjectProtocol
    
    Parameters:
    object - An instance of the class returned by the getTheClass() method or the class itself
    methodName - The name of the method
    arguments - The arguments to the method
    
    Returns:
    The return value of the method which is null if the return type is void
    See Also:
    MissingMethodException
  - invokeConstructor
```
public Object invokeConstructor(Object[] arguments)
```
    Description copied from interface: MetaObjectProtocol
    
    Invokes a constructor for the given arguments. The MetaClass will attempt to pick the best argument which matches the types of the objects passed within the arguments array
    
    Specified by:
    
    invokeConstructor in interface MetaObjectProtocol
    
    Parameters:
    arguments - The arguments to the constructor
    
    Returns:
    An instance of the java.lang.Class that this MetaObjectProtocol object applies to
  - selectConstructorAndTransformArguments
```
public int selectConstructorAndTransformArguments(int numberOfConstructors,
                                         Object[] arguments)
```
    Description copied from interface: MetaClass
    
    Internal method to support Groovy runtime. Not for client usage.
    
    Specified by:
    
    selectConstructorAndTransformArguments in interface MetaClass
    
    Parameters:
    numberOfConstructors - The number of constructors
    arguments - The arguments
    
    Returns:
    selected index
  - checkInitalised
```
protected void checkInitalised()
```
    checks if the initialisation of the class id complete. This method should be called as a form of assert, it is no way to test if there is still initialisation work to be done. Such logic must be implemented in a different way.
    
    Throws:
    
    IllegalStateException - if the initialisation is incomplete yet
  - retrieveConstructor
```
public MetaMethod retrieveConstructor(Object[] arguments)
```
    This is a helper method added in Groovy 2.1.0, which is used only by indy. This method is for internal use only.
    
    Since:
    
    Groovy 2.1.0
  - setProperties
```
public void setProperties(Object bean,
                 Map map)
```
    Sets a number of bean properties from the given Map where the keys are the String names of properties and the values are the values of the properties to set
  - getProperty
```
public Object getProperty(Class sender,
                 Object object,
                 String name,
                 boolean useSuper,
                 boolean fromInsideClass)
```
    Description copied from interface: MetaClass
    
    Retrieves a property on the given receiver for the specified arguments. The sender is the class that is requesting the property from the object. The MetaClass will attempt to establish the method to invoke based on the name and arguments provided.
    The isCallToSuper and fromInsideClass help the Groovy runtime perform optimisations on the call to go directly to the super class if necessary
    
    Specified by:
    
    getProperty in interface MetaClass
    
    Parameters:
    sender - The java.lang.Class instance that requested the property
    object - The Object which the property is being retrieved from
    name - The name of the property
    useSuper - Whether the call is to a super class property
    fromInsideClass - ??
    
    Returns:
    the given property's value on the object
  - getEffectiveGetMetaProperty
```
public MetaProperty getEffectiveGetMetaProperty(Class sender,
                                       Object object,
                                       String name,
                                       boolean useSuper)
```
  - getProperties
```
public List<MetaProperty> getProperties()
```
    Get all the properties defined for this type
    
    Specified by:
    
    getProperties in interface MetaClass
    
    Specified by:
    
    getProperties in interface MetaObjectProtocol
    
    Returns:
    a list of MetaProperty objects
    See Also:
    MetaProperty
  - applyPropertyDescriptors
```
protected void applyPropertyDescriptors(PropertyDescriptor[] propertyDescriptors)
```
  - addMetaBeanProperty
```
public void addMetaBeanProperty(MetaBeanProperty mp)
```
    Adds a new MetaBeanProperty to this MetaClass
    
    Specified by:
    
    addMetaBeanProperty in interface MutableMetaClass
    
    Parameters:
    mp - The MetaBeanProperty
  - setProperty
```
public void setProperty(Class sender,
               Object object,
               String name,
               Object newValue,
               boolean useSuper,
               boolean fromInsideClass)
```
    Retrieves a property on the given receiver for the specified arguments. The sender is the class that is requesting the property from the object. The MetaClass will attempt to establish the method to invoke based on the name and arguments provided.
    The useSuper and fromInsideClass help the Groovy runtime perform optimisations on the call to go directly to the super class if necessary
    
    Specified by:
    
    setProperty in interface MetaClass
    
    Parameters:
    sender - The java.lang.Class instance that is mutating the property
    object - The Object which the property is being set on
    name - The name of the property
    newValue - The new value of the property to set
    useSuper - Whether the call is to a super class property
    fromInsideClass - Whether the call was invoked from the inside or the outside of the class.
  - getAttribute
```
public Object getAttribute(Class sender,
                  Object receiver,
                  String messageName,
                  boolean useSuper)
```
    Retrieves the value of an attribute (field). This method is to support the Groovy runtime and not for general client API usage.
    
    Specified by:
    
    getAttribute in interface MetaClass
    
    Parameters:
    sender - The class of the object that requested the attribute
    receiver - The instance
    messageName - The name of the attribute
    useSuper - Whether to look-up on the super class or not
    
    Returns:
    The attribute value
  - getAttribute
```
public Object getAttribute(Class sender,
                  Object object,
                  String attribute,
                  boolean useSuper,
                  boolean fromInsideClass)
```
    Retrieves the value of an attribute (field). This method is to support the Groovy runtime and not for general client API usage.
    
    Parameters:
    sender - The class of the object that requested the attribute
    object - The instance the attribute is to retrived from
    attribute - The name of the attribute
    useSuper - Whether to look-up on the super class or not
    fromInsideClass - Whether the call was invoked from the inside or the outside of the class.
    
    Returns:
    The attribute value
  - setAttribute
```
public void setAttribute(Class sender,
                Object object,
                String attribute,
                Object newValue,
                boolean useSuper,
                boolean fromInsideClass)
```
    Sets an attribute on the given receiver for the specified arguments. The sender is the class that is setting the attribute from the object. The MetaClass will attempt to establish the method to invoke based on the name and arguments provided.
    The isCallToSuper and fromInsideClass help the Groovy runtime perform optimisations on the call to go directly to the super class if necessary
    
    Specified by:
    
    setAttribute in interface MetaClass
    
    Parameters:
    sender - The java.lang.Class instance that is mutating the property
    object - The Object which the property is being set on
    attribute - The name of the attribute,
    newValue - The new value of the attribute to set
    useSuper - Whether the call is to a super class property
    fromInsideClass - Whether the call was invoked from the inside or the outside of the class
  - getClassNode
```
public ClassNode getClassNode()
```
    Obtains a reference to the original AST for the MetaClass if it is available at runtime
    
    Specified by:
    
    getClassNode in interface MetaClass
    
    Returns:
    The original AST or null if it cannot be returned
  - toString
```
public String toString()
```
    Returns a string representation of this metaclass
    
    Overrides:
    
    toString in class Object
  - addMetaMethod
```
public void addMetaMethod(MetaMethod method)
```
    adds a MetaMethod to this class. WARNING: this method will not do the neccessary steps for multimethod logic and using this method doesn't mean, that a method added here is replacing another method from a parent class completely. These steps are usually done by initialize, which means if you need these steps, you have to add the method before running initialize the first time.
    
    Specified by:
    
    addMetaMethod in interface MutableMetaClass
    
    Parameters:
    method - the MetaMethod
    See Also:
    initialize()
  - addMetaMethodToIndex
```
protected void addMetaMethodToIndex(MetaMethod method,
                        MetaMethodIndex.Header header)
```
  - checkIfGroovyObjectMethod
```
protected final void checkIfGroovyObjectMethod(MetaMethod metaMethod)
```
    Checks if the metaMethod is a method from the GroovyObject interface such as setProperty, getProperty and invokeMethod
    
    Parameters:
    metaMethod - The metaMethod instance
    See Also:
    GroovyObject
  - isInitialized
```
protected boolean isInitialized()
```
  - chooseMethod
```
protected Object chooseMethod(String methodName,
                  Object methodOrList,
                  Class[] arguments)
```
    Chooses the correct method to use from a list of methods which match by name.
    
    Parameters:
    methodOrList - the possible methods to choose from
    arguments -
  - initialize
```
public void initialize()
```
    Complete the initialisation process. After this method is called no methods should be added to the meta class. Invocation of methods or access to fields/properties is forbidden unless this method is called. This method should contain any initialisation code, taking a longer time to complete. An example is the creation of the Reflector. It is suggested to synchronize this method.
    
    Specified by:
    
    initialize in interface MetaClass
  - getMethods
```
public List<MetaMethod> getMethods()
```
    Retrieves the list of Methods held by the class
    
    Specified by:
    
    getMethods in interface MetaClass
    
    Specified by:
    
    getMethods in interface MetaObjectProtocol
    
    Returns:
    A list of Methods
    See Also:
    MetaMethod
  - getMetaMethods
```
public List<MetaMethod> getMetaMethods()
```
    Retrieves the list of MetaMethods held by this class
    
    Specified by:
    
    getMetaMethods in interface MetaClass
    
    Returns:
    A list of MetaMethods
  - dropStaticMethodCache
```
protected void dropStaticMethodCache(String name)
```
  - dropMethodCache
```
protected void dropMethodCache(String name)
```
  - createPojoCallSite
```
public CallSite createPojoCallSite(CallSite site,
                          Object receiver,
                          Object[] args)
```
    Create a CallSite
  - createStaticSite
```
public CallSite createStaticSite(CallSite site,
                        Object[] args)
```
    Create a CallSite
  - createPogoCallSite
```
public CallSite createPogoCallSite(CallSite site,
                          Object[] args)
```
    Create a CallSite
  - createPogoCallCurrentSite
```
public CallSite createPogoCallCurrentSite(CallSite site,
                                 Class sender,
                                 Object[] args)
```
    Create a CallSite
  - createConstructorSite
```
public CallSite createConstructorSite(CallSite site,
                             Object[] args)
```
    Create a CallSite
  - getClassInfo
```
public ClassInfo getClassInfo()
```
    Returns ClasInfo for the contained Class
    
    Returns:
    The ClassInfo for the contained class.
  - getVersion
```
public int getVersion()
```
    Returns version of the contained Class
    
    Returns:
    The version of the contained class.
  - incVersion
```
public void incVersion()
```
    Increments version of the contained Class
  - getAdditionalMetaMethods
```
public MetaMethod[] getAdditionalMetaMethods()
```
    Retrieves a list of additional MetaMethods held by this class
    
    Returns:
    A list of MetaMethods
  - findPropertyInClassHierarchy
```
protected MetaBeanProperty findPropertyInClassHierarchy(String propertyName,
                                            CachedClass theClass)
```
  - findMixinMethod
```
protected MetaMethod findMixinMethod(String methodName,
                         Class[] arguments)
```
  - findMethodInClassHierarchy
```
protected static MetaMethod findMethodInClassHierarchy(Class instanceKlazz,
                                    String methodName,
                                    Class[] arguments,
                                    MetaClass metaClass)
```
  - findOwnMethod
```
protected static MetaMethod findOwnMethod(Class instanceKlazz,
                       String methodName,
                       Class[] arguments,
                       MetaClass metaClass,
                       MetaMethod method)
```
  - getSubclassMetaMethods
```
protected Object getSubclassMetaMethods(String methodName)
```
  - getProperty
```
public Object getProperty(Object object,
                 String property)
```
    Retrieves a property on the given object for the specified arguments.
    
    Specified by:
    
    getProperty in interface MetaObjectProtocol
    
    Parameters:
    object - The Object which the property is being retrieved from
    property - The name of the property
    
    Returns:
    The properties value
    See Also:
    MetaClassImpl
  - setProperty
```
public void setProperty(Object object,
               String property,
               Object newValue)
```
    Sets a property on the given object for the specified arguments.
    
    Specified by:
    
    setProperty in interface MetaObjectProtocol
    
    Parameters:
    object - The Object which the property is being retrieved from
    property - The name of the property
    newValue - The new value
    See Also:
    MetaClassImpl
  - getAttribute
```
public Object getAttribute(Object object,
                  String attribute)
```
    Retrieves the value of an attribute (field). This method is to support the Groovy runtime and not for general client API usage.
    
    Specified by:
    
    getAttribute in interface MetaObjectProtocol
    
    Parameters:
    object - The object to get the attribute from
    attribute - The name of the attribute
    
    Returns:
    The attribute value
    See Also:
    MetaClassImpl
  - setAttribute
```
public void setAttribute(Object object,
                String attribute,
                Object newValue)
```
    Sets the value of an attribute (field). This method is to support the Groovy runtime and not for general client API usage.
    
    Specified by:
    
    setAttribute in interface MetaObjectProtocol
    
    Parameters:
    object - The object to get the attribute from
    attribute - The name of the attribute
    newValue - The new value of the attribute
    See Also:
    MetaClassImpl
  - pickMethod
```
public MetaMethod pickMethod(String methodName,
                    Class[] arguments)
```
    Selects a method by name and argument classes. This method does not search for an exact match, it searches for a compatible method. For this the method selection mechanism is used as provided by the implementation of this MetaClass. pickMethod may or may not be used during the method selection process when invoking a method. There is no warranty for that.
    
    Specified by:
    
    pickMethod in interface MetaClass
    
    Parameters:
    methodName - the name of the method to pick
    arguments - the method arguments
    
    Returns:
    a matching MetaMethod or null
    
    Throws:
    
    GroovyRuntimeException - if there is more than one matching method
  - clearInvocationCaches
```
protected void clearInvocationCaches()
```
    remove all method call cache entries. This should be done if a method is added during runtime, but not by using a category.

Class MetaClassImpl

Nested Class Summary

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

STATIC_METHOD_MISSING

STATIC_PROPERTY_MISSING

METHOD_MISSING

PROPERTY_MISSING

INVOKE_METHOD_METHOD

theClass

theCachedClass

getPropertyMethod

invokeMethodMethod

setPropertyMethod

registry

isGroovyObject

isMap

EMPTY_ARGUMENTS

metaMethodIndex

Constructor Detail

MetaClassImpl

MetaClassImpl

MetaClassImpl

MetaClassImpl

Method Detail

getTheCachedClass

getRegistry

respondsTo

respondsTo

hasProperty

getMetaProperty

getStaticMetaMethod

getMetaMethod

getTheClass

isGroovyObject

getSuperClasses

isModified

addNewInstanceMethod

addNewStaticMethod

invokeMethod

invokeMissingMethod

invokeMissingProperty

onSuperPropertyFoundInHierarchy

onMixinMethodFound

onSuperMethodFoundInHierarchy

onInvokeMethodFoundInHierarchy

onSetPropertyFoundInHierarchy

onGetPropertyFoundInHierarchy

invokeStaticMissingProperty

invokeMethod

invokeMethod

getMethodWithCaching

retrieveConstructor

retrieveStaticMethod

getMethodWithoutCaching

invokeStaticMethod

invokeConstructor

selectConstructorAndTransformArguments

checkInitalised

retrieveConstructor

setProperties

getProperty

getEffectiveGetMetaProperty

getProperties

applyPropertyDescriptors

addMetaBeanProperty

setProperty

getAttribute

getAttribute

setAttribute

getClassNode

toString

addMetaMethod

addMetaMethodToIndex

checkIfGroovyObjectMethod

isInitialized

chooseMethod